Hardenize Report: bookings.cloud.microsoft

Web sites need to use encryption to help their visitors know they're in the right place, as well as provide confidentiality and content integrity. Sites that don't support HTTPS may expose sensitive data and have their pages modified and subverted.
There are issues with this site's HTTPS configuration.

For all sites VERY IMPORTANT medium EFFORT

HTTPS Redirection

To deploy HTTPS properly, web sites must redirect all unsafe (plaintext) traffic to the encrypted variant. This approach ensures that no sensitive data is exposed and that further security technologies can be activated.

For all sites VERY IMPORTANT low EFFORT

HTTP Strict Transport Security

HTTP Strict Transport Security (HSTS) is an HTTPS extension that instructs browsers to remember sites that use encryption and enforce strict security requirements. Without HSTS, active network attacks are easy to carry out.
There are issues with this site's HSTS configuration.

For important sites VERY IMPORTANT medium EFFORT

HSTS Preloaded

HSTS Preloading is informing browsers in advance about a site's use of HSTS, which means that strict security can be enforced even on the first visit. This approach provides best HTTPS security available today.

For important sites VERY IMPORTANT medium EFFORT

Content Security Policy

Content Security Policy (CSP) is an additional security layer that enables web sites to control browser behavior, creating a safety net that can counter attacks such as cross-site scripting.

For important sites IMPORTANT high EFFORT

Email Security Overview

STARTTLS

All hosts that receive email need encryption to ensure confidentiality of email messages. Email servers thus need to support STARTTLS, as well as provide decent TLS configuration and correct certificates.
There are issues with this site's SMTP configuration.

For all sites VERY IMPORTANT low EFFORT

SPF

Sender Policy Framework (SPF) enables organizations to designate servers that are allowed to send email messages on their behalf. With SPF in place, spam is easier to identify.

For important sites IMPORTANT low EFFORT

DMARC

Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a mechanism that allows organizations to specify how unauthenticated email (identified using SPF and DKIM) should be handled.

For important sites IMPORTANT low EFFORT

DNS Zone

The global DNS infrastructure is organized as a series of hierarchical DNS zones. The root zone hosts a number of global and country TLDs, which in turn host further zones that are delegated to their customers. Each organization that controls a zone can delegate parts of its namespace to other zones. In this test we perform detailed inspection of a DNS zone, but only if the host being tested matches the zone.

Test not applicable

The host being tested doesn't match a DNS zone.

DNS Records

Correctly functioning name servers are necessary to hold and distribute information that's necessary for your domain name to operate correctly. Examples include converting names to IP addresses, determining where email should go, and so on. More recently, the DNS is being used to communicate email and other security policies.

Test passed

Everything seems to be well configured. Well done.

DNS Records

These are the results of individual DNS queries against your nameserver for common resource record types.

Name	TTL	Type	Data
bookings.cloud.microsoft.	300	CNAME	outlook.office365.com.
outlook.office365.com.	300	CNAME	ooc-g2.tm-4.office.com.
ooc-g2.tm-4.office.com.	60	CNAME	outlook.ms-acdc.office.com.
outlook.ms-acdc.office.com.	60	CNAME	MNZ-efz.ms-acdc.office.com.
MNZ-efz.ms-acdc.office.com.	10	A	52.96.32.2
MNZ-efz.ms-acdc.office.com.	10	A	52.96.32.178
MNZ-efz.ms-acdc.office.com.	10	A	52.96.38.82
MNZ-efz.ms-acdc.office.com.	10	A	52.96.88.82
MNZ-efz.ms-acdc.office.com.	10	AAAA	2603:1036:302:4014:0:0:0:2
MNZ-efz.ms-acdc.office.com.	10	AAAA	2603:1036:207:456:0:0:0:2
MNZ-efz.ms-acdc.office.com.	10	AAAA	2603:1036:302:4846:0:0:0:2
MNZ-efz.ms-acdc.office.com.	10	AAAA	2603:1036:207:457:0:0:0:2

Backing DNS Queries

Below are all DNS queries we submitted while inspecting the resource records.

	ID	Server	Question Name	Type	Status

DNSSEC

DNSSEC is an extension of the DNS protocol that provides cryptographic assurance of the authenticity and integrity of responses; it's intended as a defense against network attackers who are able to manipulate DNS to redirect their victims to servers of their choice. DNSSEC is controversial, with the industry split largely between those who think it's essential and those who believe that it's problematic and unnecessary.

Test passed

Everything seems to be well configured. Well done.

Analysis

DNSSEC is well configured

Good. This domain name has well-configured DNSSEC.

Useful DNSSEC Tools

Certification Authority Authorization

CAA (RFC 8659) is a new standard that allows domain name owners to restrict which CAs are allowed to issue certificates for their domains. This can help to reduce the chance of misissuance, either accidentally or maliciously. In September 2017, CAA became mandatory for CAs to implement.

Test passed

Everything seems to be well configured. Well done.

CAA Policy Information

The DNS hostname where this policy is located.Policy host	cloud.microsoft
The iodef property specifies a means of reporting certificate issue requests or cases of certificate issue for the corresponding domain that violate the security policy of the issuer or the domain name holder.iodef	mailto:caarecordaware@microsoft.com flags: 0
We don't understand this property; it's not defined in the CAA RFC.contactemail	caarecordaware@microsoft.com flags: 0
The issue property tag is used to request that certificate issuers perform CAA issue restriction processing for the domain and to grant authorization to specific certificate issuers.issue	microsoft.com flags: 0
The issue property tag is used to request that certificate issuers perform CAA issue restriction processing for the domain and to grant authorization to specific certificate issuers.issue	digicert.com flags: 0

Analysis

Issuance of S/MIME certificates not restricted

This policy doesn't restrict the issuance of S/MIME certificates. Consider using the `issuemail` directive to restrict which CAs, if any, can issue.

Issuance of BIMI not restricted

This policy doesn't restrict issuance of BIMI certificates. Consider using the `issuevmc` directive to restrict which CAs, if any, can issue.

CAA policy restricts issuance

Great. This domain name uses CAA to restrict which CAs are allowed to issue certificates for it.

Policy uses reporting

Good. This policy uses reporting, which means that your contact information is available should someone need to contact you about a CAA violation. Do note that you're not guaranteed to be notified, given that CAs generally don't support notifications yet.

Email (SMTP)

An internet hostname can be served by zero or more mail servers, as specified by MX (mail exchange) DNS resource records. Each server can further resolve to multiple IP addresses, for example to handle IPv4 and IPv6 clients. Thus, in practice, hosts that wish to receive email reliably are supported by many endpoint.

Test passed, but there are warnings

Some aspect of your site's configuration require your attention.

Server	Preference	Operational	STARTTLS	TLS	PKI	DNSSEC	DANE
bookings.cloud.microsoft 52.96.88.34 PTR: -	0
bookings.cloud.microsoft 52.96.88.98 PTR: -	0
bookings.cloud.microsoft 52.96.242.18 PTR: -	0
bookings.cloud.microsoft 40.104.46.50 PTR: -	0
bookings.cloud.microsoft 52.96.230.162 PTR: -	0
bookings.cloud.microsoft 52.97.101.194 PTR: -	0
bookings.cloud.microsoft 52.96.111.2 PTR: -	0
bookings.cloud.microsoft 52.96.111.34 PTR: -	0
bookings.cloud.microsoft 2603:1036:207:2001:0:0:0:2 PTR: -	0
bookings.cloud.microsoft 2603:1036:302:4080:0:0:0:2 PTR: -	0
bookings.cloud.microsoft 2603:1036:302:415c:0:0:0:2 PTR: -	0
bookings.cloud.microsoft 2603:1036:302:4157:0:0:0:2 PTR: -	0
bookings.cloud.microsoft 2603:1036:302:860:0:0:0:2 PTR: -	0
bookings.cloud.microsoft 2603:1036:302:505f:0:0:0:2 PTR: -	0
bookings.cloud.microsoft 2603:1036:302:4836:0:0:0:2 PTR: -	0
bookings.cloud.microsoft 2603:1036:302:840:0:0:0:2 PTR: -	0

Analysis

This host doesn't have any MX records but accepts own email

This host accepts its own email. According to the SMTP RFC (Section 5.1., "Locating the Target Host"), when a host doesn't have any MX servers configured in DNS, an attempt is made to deliver email directly to the host itself.

Email TLS (SMTP)

Transport Layer Security (TLS) is the most widely used encryption protocol on the Internet. In combination with valid certificates, servers can establish trusted communication channels even with users who have never visited them before. Network attackers can't uncover what is being communicated, even when they can see all the traffic.

Test passed

Everything seems to be well configured. Well done.

TLS Configuration: bookings.cloud.microsoft (52.96.88.34)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Good. This server supports TLS 1.2, which can provide strong security when configured correctly. This version of the TLS protocol is necessary to provide good security with a wide range of clients that don't yet support TLS 1.3.

Server enforces cipher suite preferences

Excellent. This server enforces server cipher suite preference, which means that it is able to select the best suite from the options submitted by clients. Combined with a well-designed list of supported cipher suites, this setting enables negotiation of best security.

Strong key exchange detected

Excellent. All cipher suites on this server rely on strong key exchange. The sweet spot is 2048 bits for DHE and 256 bits for ECDHE. Putting ECDHE suites first guarantees best security and best performance.

Server prefers forward secrecy and authenticated encryption suites

Excellent. Not only does this server enforce its server preference, but it also has at the top of the list suites that support both forward secrecy and authenticated encryption. This is the best TLS 1.2 can offer.

Relaxed TLS assessment criteria applied to SMTP on port 25

We apply relaxed assessment criteria when evaluating TLS configuration of SMTP servers on port 25. This is because most delivery agents fall back to delivering via plaintext on failure to negotiate encryption. Some configuration elements that can be abused to attack other ports and protocols (e.g., SSLv2 and export cipher suites) are penalized in the same way as for other protocols. We will review this policy in the future.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.88.98)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.242.18)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (40.104.46.50)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.230.162)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.97.101.194)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.111.2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.111.34)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:207:2001:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:4080:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:415c:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:4157:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:860:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:505f:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:4836:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:840:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Suite ID: 0x3d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0x3c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits

Analysis

TLS 1.2 supported

Server enforces cipher suite preferences

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Relaxed TLS assessment criteria applied to SMTP on port 25

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

Email Certificates (SMTP)

A certificate is a digital document that contains a public key, some information about the entity associated with it, and a digital signature from the certificate issuer. It’s a mechanism that enables us to exchange, store, and use public keys. Being able to reliably verify the identity of a remote server is crucial in order to achieve secure encrypted communication.

Test passed, but there are warnings

Some aspect of your site's configuration require your attention.

Certificate #1

Leaf certificate

outlook.com
Issuer: DigiCert
Not Before: 10 Nov 2025 00:00:00 UTC
Not After: 09 Nov 2026 23:59:59 UTC (expires in 7 months 30 days)
Key: RSA 2048 bits
Signature: SHA256withRSA
View details

Names	.clo.footprintdns.com .hotmail.com .internal.outlook.com .live.com .nrb.footprintdns.com .office.com .office365.com .outlook.com *.outlook.office365.com attachment.outlook.live.net attachment.outlook.office.net attachment.outlook.officeppe.net attachments.office.net attachments-sdf.office.net ccs.login.microsoftonline.com ccs-sdf.login.microsoftonline.com hotmail.com mail.services.live.com office365.com outlook.com outlook.office.com substrate.office.com substrate-sdf.office.com
Subject DN	CN=outlook.com, O=Microsoft Corporation, L=Redmond, ST=Washington, C=US
Subject Key Identifier	4d4fd22dc132d501110fa8bf29ac10685e741e6d
Serial	05a8e2577a9ac3107ac04cac3d282af2
Not Before	10 Nov 2025 00:00:00 UTC
Not After	09 Nov 2026 23:59:59 UTC
Validity period	365 days
Key Usage	digitalSignature, keyEncipherment
Extended Key Usage	serverAuth, clientAuth
Must Staple	No
Issuer
Issuer DN	CN=DigiCert Cloud Services CA-1, O=DigiCert Inc, C=US
Certification Authority	DigiCert
Validation Type	Organization Validation (OV)
Authority Key Identifier	keyid:dd51d0a23173a973ae8fb4017e5d8c57cb9ff0f7
Parent Certificate	http://cacerts.digicert.com/DigiCertCloudServicesCA-1.crt
CRL	http://crl3.digicert.com/DigiCertCloudServicesCA-1-g1.crl http://crl4.digicert.com/DigiCertCloudServicesCA-1-g1.crl
OCSP	http://ocspx.digicert.com
Certificate Transparency
Signed Certificate Timestamps	10 Nov 2025 22:42:16 UTC \| Google 'Xenon2026h2' log \| Qualified 10 Nov 2025 22:42:16 UTC \| DigiCert 'Wyvern2026h2' \| Qualified 10 Nov 2025 22:42:16 UTC \| DigiCert 'Sphinx2026h2' \| Qualified
Fingerprints
SHA1	49eb381366cb543f6c6235f2d33c667dedfa206f
SHA256	3935bfccec8880e3c45bdedf90cf5d287fe6380d1abd72b6d306e3f64fcd3aa4
SPKI SHA256	ef5f177eebe182007a10c1eca753b98b64711e3d0d6a682f7b896fefb141523f

Analysis

Strong private key

Good. The private key associated with this certificate is secure.

Strong signature algorithm

Good. This certificate uses a strong signature algorithm.

Certificate doesn't match hostname

The provided certificate doesn't match the expected hostname. Default relaxed criteria for SMTP applies.

Expected hostname: bookings.cloud.microsoft

Certificate dates match

Good. The certificate is valid for use at this point of time.

Certificate has not been revoked

Good. This certificate has not been revoked.

Certificate satisfies Apple's CT compliance requirements

Good. This certificate satisfies Apple's CT requirements at present.

Certificate Chain

Leaf certificate

outlook.com | 3935bfc
Not After: 09 Nov 2026 23:59:59 UTC (expires in 7 months 30 days)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Names	.clo.footprintdns.com .hotmail.com .internal.outlook.com .live.com .nrb.footprintdns.com .office.com .office365.com .outlook.com *.outlook.office365.com attachment.outlook.live.net attachment.outlook.office.net attachment.outlook.officeppe.net attachments.office.net attachments-sdf.office.net ccs.login.microsoftonline.com ccs-sdf.login.microsoftonline.com hotmail.com mail.services.live.com office365.com outlook.com outlook.office.com substrate.office.com substrate-sdf.office.com
Subject DN	CN=outlook.com, O=Microsoft Corporation, L=Redmond, ST=Washington, C=US
Subject Key Identifier	4d4fd22dc132d501110fa8bf29ac10685e741e6d
Serial	05a8e2577a9ac3107ac04cac3d282af2
Not Before	10 Nov 2025 00:00:00 UTC
Not After	09 Nov 2026 23:59:59 UTC
Validity period	365 days
Key Usage	digitalSignature, keyEncipherment
Extended Key Usage	serverAuth, clientAuth
Must Staple	No
Issuer
Issuer DN	CN=DigiCert Cloud Services CA-1, O=DigiCert Inc, C=US
Certification Authority	DigiCert
Validation Type	Organization Validation (OV)
Authority Key Identifier	keyid:dd51d0a23173a973ae8fb4017e5d8c57cb9ff0f7
Parent Certificate	http://cacerts.digicert.com/DigiCertCloudServicesCA-1.crt
CRL	http://crl3.digicert.com/DigiCertCloudServicesCA-1-g1.crl http://crl4.digicert.com/DigiCertCloudServicesCA-1-g1.crl
OCSP	http://ocspx.digicert.com
Certificate Transparency
Signed Certificate Timestamps	10 Nov 2025 22:42:16 UTC \| Google 'Xenon2026h2' log \| Qualified 10 Nov 2025 22:42:16 UTC \| DigiCert 'Wyvern2026h2' \| Qualified 10 Nov 2025 22:42:16 UTC \| DigiCert 'Sphinx2026h2' \| Qualified
Fingerprints
SHA1	49eb381366cb543f6c6235f2d33c667dedfa206f
SHA256	3935bfccec8880e3c45bdedf90cf5d287fe6380d1abd72b6d306e3f64fcd3aa4
SPKI SHA256	ef5f177eebe182007a10c1eca753b98b64711e3d0d6a682f7b896fefb141523f

Intermediate certificate

DigiCert Cloud Services CA-1 | 5f88694
Not After: 24 Sep 2030 23:59:59 UTC (expires in 4 years 6 months)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Subject DN	CN=DigiCert Cloud Services CA-1, O=DigiCert Inc, C=US
Subject Key Identifier	dd51d0a23173a973ae8fb4017e5d8c57cb9ff0f7
Serial	0f171a48c6f223809218cd2ed6ddc0e8
Not Before	25 Sep 2020 00:00:00 UTC
Not After	24 Sep 2030 23:59:59 UTC
Validity period	3652 days
Key Usage	digitalSignature, keyCertSign, cRLSign
Extended Key Usage	serverAuth, clientAuth
Issuer
Issuer DN	CN=DigiCert Global Root CA, OU=www.digicert.com, O=DigiCert Inc, C=US
Certification Authority	DigiCert
Validation Type	Not Applicable
Authority Key Identifier	keyid:03de503556d14cbb66f0a3e21b1bc397b23dd155
Parent Certificate	http://cacerts.digicert.com/DigiCertGlobalRootCA.crt
CRL	http://crl3.digicert.com/DigiCertGlobalRootCA.crl http://crl4.digicert.com/DigiCertGlobalRootCA.crl
OCSP	http://ocsp.digicert.com
CA certificate	Yes (pathlen 0)
Fingerprints
SHA1	b3f6b64a07bb9611f47174407841f564fb991f29
SHA256	5f88694615e4c61686e106b84c3338c6720c535f60d36f61282ed15e1977dd44
SPKI SHA256	520a545696ab8a693c4028ed59069443b106aedaf291cfcbf0deba121158dd51

Root certificate

DigiCert Global Root CA | 4348a0e
Not After: 10 Nov 2031 00:00:00 UTC (expires in 5 years 7 months)
Authentication: RSA 2048 bits (SHA1withRSA)
View details

Subject DN	CN=DigiCert Global Root CA, OU=www.digicert.com, O=DigiCert Inc, C=US
Subject Key Identifier	03de503556d14cbb66f0a3e21b1bc397b23dd155
Serial	083be056904246b1a1756ac95991c74a
Not Before	10 Nov 2006 00:00:00 UTC
Not After	10 Nov 2031 00:00:00 UTC
Key Usage	digitalSignature, keyCertSign, cRLSign
Issuer
Issuer DN	CN=DigiCert Global Root CA, OU=www.digicert.com, O=DigiCert Inc, C=US
Certification Authority	DigiCert
Validation Type	Self-signed
Authority Key Identifier	keyid:03de503556d14cbb66f0a3e21b1bc397b23dd155
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	a8985d3a65e5e5c4b2d7d66d40c6dd2fb19c5436
SHA256	4348a0e9444c78cb265e058d5e8944b4d84f9662bd26db257f8934a443c70161
SPKI SHA256	aff988906dde12955d9bebbf928fdcc31cce328d5b9384f21c8941ca26e20391

Analysis

Certificate chain is correct

Good. This chain contains all the right certificates and in the right order.

Email DANE (SMTP)

DNS-based Authentication of Named Entities (DANE) is a bridge between DNSSEC and TLS. In one possible scenario, DANE can be used for public key pinning, building on an existing publicly-trusted certificate. In another approach, it can be used to completely bypass the CA ecosystem and establish trust using DNSSEC alone.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

SPF

Sender Policy Framework (SPF) is a protocol that allows domain name owners to control which internet hosts are allowed to send email on their behalf. This simple mechanism can be used to reduce the effect of email spoofing and cut down on spam.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

DMARC

Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a scalable mechanism by which a mail-originating organization can express domain-level policies and preferences for message validation, disposition, and reporting, that a mail-receiving organization can use to improve mail handling.

Test passed

Everything seems to be well configured. Well done.

DMARC Policy Information

The location from which we obtained this policy.Policy location	_dmarc.cloud.microsoft
DMARC version used by this policy.v	DMARC1
Indicates the policy to be enacted by the receiver at the request of the domain owner. Possible values are: none, quarantine, and reject.p	reject
Requested mail receiver policy for all subdomains. Same format as for the p tag.sp	reject
Percentage of messages from mail stream to which the DMARC policy is to be applied.pct	100
Indicates whether strict or relaxed SPF alignment mode is required.aspf	s
Indicates whether strict or relaxed DKIM alignment mode is required.adkim	s
Addresses to which aggregate feedback is to be sent.rua	mailto:rua@dmarc.microsoft
Addresses to which message-specific failure information is to be reported.ruf	mailto:ruf@dmarc.microsoft

Analysis

DMARC policy found

Policy: v=DMARC1;p=reject;sp=reject;pct=100;aspf=s;adkim=s;rua=mailto:rua@dmarc.microsoft;ruf=mailto:ruf@dmarc.microsoft

Host: _dmarc.cloud.microsoft

Valid external destination

Permission record location: cloud.microsoft._report._dmarc.dmarc.microsoft

External destination: mailto:rua@dmarc.microsoft

Permission record contents: v=DMARC1

Policy is valid

Good. You have a valid DMARC policy.

MTA Strict Transport Security

SMTP Mail Transfer Agent Strict Transport Security (MTA-STS) is a mechanism enabling mail service providers to declare their ability to receive Transport Layer Security (TLS) secure SMTP connections, and to specify whether sending SMTP servers should refuse to deliver to MX hosts that do not offer TLS with a trusted server certificate.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

SMTP TLS Reporting

SMTP TLS Reporting (RFC 8460), or TLS-RPT for short, describes a reporting mechanism and format by which systems sending email can share statistics and specific information about potential failures with recipient domains. Recipient domains can then use this information to both detect potential attacks and diagnose unintentional misconfigurations. TLS-RPT can be used with DANE or MTA-STS.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

HTTP (80)

To observe your HTTP implementation, we submit a request to the homepage of your site on port 80, follow all redirections (even when they take us to other domain names), and record the returned HTTP headers.

Test passed

Everything seems to be well configured. Well done.

URL: http://bookings.cloud.microsoft/

http://bookings.cloud.microsoft/

HTTP/1.1 301 Moved Permanently

Cache-Control	no-cache
Pragma	no-cache
Location	https://bookings.cloud.microsoft/mail/
Server	Microsoft-IIS/10.0
request-id	d60bfeac-f521-d51a-1ce7-d20137827b5c
X-FEServer	MN2PR03CA0029
X-RequestId	954c0b5c-04b8-4c0c-a971-5fb57f3d0cdc
Alt-Svc	":443";ma=2592000,h3-29=":443";ma=2592000
X-FEProxyInfo	MN2PR03CA0029.NAMPRD03.PROD.OUTLOOK.COM
X-FEEFZInfo	MNZ
MS-CV	rP4L1iH1GtUc59IBN4J7XA.0
X-Powered-By	ASP.NET
X-FEServer	MN2PR03CA0029
Date	Tue, 10 Mar 2026 13:59:11 GMT
Connection	close
Content-Length	0

https://bookings.cloud.microsoft/mail/

HTTP/1.1 200 OK

Cache-Control	no-cache
Pragma	no-cache
Transfer-Encoding	chunked
Content-Type	text/html
Expires	-1
Vary	Accept-Encoding
request-id	19ca322a-ec01-db4d-1869-687b9cc9c533
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-PreferredRoutingKeyDiagnostics	0
X-CalculatedBETarget	BL1PR03MB6006.NAMPRD03.PROD.OUTLOOK.COM
X-BackEndHttpStatus	200
Set-Cookie	ClientId=; expires=Thu, 01 Jan 1970 00:00:00 GMT; path=/
Set-Cookie	ClientId=0EB80D4F01254AB4823AB28D289C12F4; expires=Wed, 10 Mar 2027 13:59:17 GMT; path=/; secure; samesite=none
x-web-server-version	26.2.23.4
X-Clique	CLNAMPRD03MNZ00
X-Content-Type-Options	nosniff
Content-Security-Policy	default-src .res.office365.com .fluidpreview.office.net .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft swx.cdn.skype.com 'self'; script-src 'nonce-X3FYUgcvhW/+DhAWVuZk/g==' .res.office365.com .fluidpreview.office.net wss://.delve.office.com:443 shellprod.msocdn.com amcdn.msauth.net amcdn.msftauth.net .skype.com .skypeassets.com .delve.office.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft static.teams.microsoft.com teams.microsoft.com cdn.forms.office.net content.lifecycle.office.net blob: 'report-sample' 'self' 'wasm-unsafe-eval' .yammer.com; style-src .res.office365.com .fluidpreview.office.net .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft shellprod.msocdn.com .skype.com 'self' 'report-sample' 'unsafe-inline' .yammer.com .engage.cloud.microsoft; img-src data: blob: filesystem: cid:; connect-src blob: data: .res.office365.com .fluidpreview.office.net .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft .services.web.outlook.com login.live.com login.microsoftonline.com spoprod-a.akamaihd.net shellprod.msocdn.com .bing.com .office.net .office.com .office365.com .officeapps.live.com .skype.com .skypeassets.com .onedrive.com onedrive.cloud.microsoft my.microsoftpersonalcontent.com browser.pipe.aria.microsoft.com .gateway.messenger.live.com dev.virtualearth.net .trouter.skype.com .trouter.io wss://.trouter.skype.com wss://.trouter.skype.com:443 wss://.trouter.io:443 media.licdn.com .facebook.com onerm.olsvc.com .qas.binginternal.com .qas.bing.net wss://.qas.bing.net:443 wss://.platform.bing.com wss://.botframework.com:443 wss://augloop.office.com wss://.augloop.office.com outlook.live.com graph.microsoft.com .graph.microsoft.com .office.microsoft.com api.box.com api.dropboxapi.com .users.storage.live.com www.onenote.com .storage.msn.com wss://.pushd.svc.ms wss://.pushs.svc.ms wss://.pushb.svc.ms wss://.pushp.svc.ms wss://.svc.ms pptservicescast.officeapps.live.com .sharepoint-df.com .sharepoint.com wss://.delve.office.com:443 wss://.loki.delve.office.com:443 wss://.loki.delve.office.com .delve.office.com .loki.delve.office.com web.vortex.data.microsoft.com .events.data.microsoft.com .online.lync.com .infra.lync.com wss://.cortana.ai .cortana.ai fs.microsoft.com newspro.microsoft.com api.aadrm.com config.edge.skype.com content.lifecycle.office.net .cp.microsoft.com .mp.microsoft.com .m365.microsoft.com .payments.microsoft.com .account.microsoft.com checkout.office.com smbpurchase.omex.office.net commerceapi.office.net commercemgmt.m365.microsoft.com checkout.microsoft365.com officeclient.microsoft.com editor.svc.cloud.microsoft 'self' login.microsoftonline.com outlook.office365.com teams.microsoft.com .teams.microsoft.com .yammer.com .svc.ms .licdn.com o365auditrealtimeingestion.manage.office.com o365auditrealtimeingestion.manage.office.com:445 files.yammerusercontent.com .engage.cloud.microsoft wss://augloop-gcc.office.com wss://.augloop-gcc.office.com wss://augloop.svc.cloud.microsoft wss://.augloop.svc.cloud.microsoft aesir.office.com .oscs.protection.outlook.com .safelinks.protection.outlook.com arc.msn.com arc-emea.msn.com fd.api.iris.microsoft.com .dynamics.com .mos.microsoft.com ris.api.iris.microsoft.com eudb.ris.api.iris.microsoft.com services.bingapis.com prod-autodetect.outlookmobile.com prod.autodetect.outlook.cloud.microsoft .googleapis.com admin.microsoft.com .bpa.microsoft.com teams.cloud.microsoft api.tenor.com attachment.outlook.live.net .msedge.net app.whiteboard.microsoft.com whiteboard.office.com whiteboard.cloud.microsoft outlook.cloud.microsoft identity.osi.office.net wss://substrate.office.com .adnxs.com wss://.trouter.teams.microsoft.com api.flow.microsoft.com .sharepoint.de proxy.uet.s.microsoft.com rtb.linkedin.com bat.bing.net; base-uri browser.pipe.aria.microsoft.com 'self'; form-action .officeapps.live.com .sharepoint-df.com .sharepoint.com .odwebp.svc.ms login.microsoftonline.com .sharepoint.de; object-src .office.net 'self' blob: attachments.office.net attachments.outlook.usercontent.microsoft attachment.outlook.live.net blob:; frame-ancestors 'self' teams.microsoft.com; font-src data: .res.office365.com .fluidpreview.office.net .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft spoprod-a.akamaihd.net .skype.com ms-appx-web: sharepointonline.com .sharepointonline.com .delve.office.com fs.microsoft.com static2.sharepointonline.com 'self' .yammer.com .engage.cloud.microsoft; media-src blob: data: .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft .sharepoint-df.com .skype.com .office.net .office365.net .office365-net.us .office.com 'self' .yammer.com .engage.cloud.microsoft attachments.office.net attachments.outlook.usercontent.microsoft attachment.outlook.live.net .sharepoint.com .sharepoint.de; frame-src * data: mailto: blob:; manifest-src 'self'; worker-src 'self' blob: .office.com; child-src 'self' blob: .office.com; require-trusted-types-for 'script'; trusted-types owaTrustedTypesPolicy owa#webpack cdn-url#oneshell safe-xml#oneshell workerScriptTrustedTypesPolicy augloopTrustedTypesPolicy 1DSScriptURL dompurify adaptivecards#deprecatedExportedFunctionPolicy highcharts owaAdsTrustedTypesPolicy @msteams/embed-client @fluidx/loop workerPolicy MeControlScriptURL adaptivecards#markdownPassthroughPolicy fast-html adaptivecards#restoreContentsPolicy @1js/midgard-trusted-types @1js/lpc-common-web#webpack @centro/hvc-loader html2canvas osfRuntimeScriptPolicy yammer-outlook-trusted-types-policy#webpack @azure/ms-rest-js#xml.browser react-virtualized-auto-sizer lit-html officebrowserfeedback#domUtils troubleshootPolicy consolePolicy ori_importmap TrustedTypePolicyFactory workerScriptPolicy iFrameDocumentTrustedTypesPolicy nativePdfPreviewTrustedTypesPolicy workerLoaderTrustedTypesPolicy @1js/search-converged-hostapp-owa-bundle#webpack suiteuxShellTrustedTypesPolicy @azure/core-xml#xml.browser @1js/midgard-bootstrapper#webpack trustedInnerHTMLPolicy domUtilsTrustedTypePolicy dangerouslySetInnerHTMLPolicy overlayScrollbarsTrustedTypesPolicy @msteams/services-io-browser-web-client-update#register-service-worker @fluidx/loop#loop-page-container @fluidx/loop#odsp-driver @fluidx/loop#office-fluid-container @fluidx/loop#sourceless-iframe webpack-dev-server#overlay placesMapWorkerPolicy @fluidx/loop-app-worker-template ori-worker-policy default owaLoopTrustedTypesPolicy owaTeamsClientTrustedTypesPolicy owaMeControlTrustedTypesPolicy ast-policy domPurifyHTML emptyStringPolicyHTML 'allow-duplicates'; report-uri https://csp.microsoft.com/report/OutlookWeb-Mail-PROD; upgrade-insecure-requests;
x-app-name	Mail
Referrer-Policy	no-referrer
Cross-Origin-Opener-Policy	same-origin-allow-popups
Origin-Trial	AgxVPru/jRUesV9k7Pn5/osZuJ4g/2sL76bPZejtrjsFofGlatTE4sbavhadrkBNum06aL1ghYYaKcX04fiRdAIAAABveyJvcmlnaW4iOiJodHRwczovL29mZmljZS5jb206NDQzIiwiZmVhdHVyZSI6IkxvbmdBbmltYXRpb25GcmFtZVRpbWluZyIsImV4cGlyeSI6MTcxNjk0MDc5OSwiaXNTdWJkb21haW4iOnRydWV9
Link	<https://res.public.onecdn.static.microsoft/>; rel="preconnect"
Document-Policy	include-js-call-stacks-in-crash-reports
X-Client-Version	20260227002.16
x-besku	UNKNOWN
X-Proxy-RoutingCorrectness	1
Alt-Svc	":443";ma=2592000,h3-29=":443";ma=2592000
X-Proxy-BackendServerStatus	200
X-FirstHopCafeEFZ	MNZ
X-BEPartition	Clique/CLNAMPRD03MNZ00
X-FEProxyInfo	MN2PR03CA0028.NAMPRD03.PROD.OUTLOOK.COM
X-FEEFZInfo	MNZ
MS-CV	KjLKGQHsTdsYaWh7nMnFMw.1
X-Powered-By	ASP.NET
X-FEServer	MN2PR03CA0028
Date	Tue, 10 Mar 2026 13:59:11 GMT

Analysis

Information leakage in HTTP response header

A HTTP response provided by this server includes a server that reveals potentially sensitive information about the software running on it. There is no reason why this information should be provided to the public and we recommend that it is removed.

Header value: ASP.NET

Header name: X-Powered-By

HTTP redirects to HTTPS

Good. This plaintext HTTP server redirects to HTTPS.

HTTP (443)

To observe your HTTPS implementation, we submit a request to the homepage of your site on port 443, follow all redirections (even when they take us to other domain names), and record the returned HTTP headers. We use the most recent set of headers returned from the tested hostname for further tests such as HSTS and HPKP.

Test passed

Everything seems to be well configured. Well done.

URL: https://bookings.cloud.microsoft/

https://bookings.cloud.microsoft/

HTTP/1.1 301 Moved Permanently

Cache-Control	no-cache
Pragma	no-cache
Content-Length	0
Content-Type	text/plain
Location	https://bookings.cloud.microsoft/bookings/
Server	Microsoft-HTTPAPI/2.0
X-NanoProxy	1
Request-Id	183237c0-6d40-c952-d799-73913c5c4f3c
X-FEServer	MN2PR07CA0021
Date	Tue, 10 Mar 2026 13:59:10 GMT

https://bookings.cloud.microsoft/bookings/

HTTP/1.1 200 OK

Cache-Control	no-cache
Pragma	no-cache
Transfer-Encoding	chunked
Content-Type	text/html
Expires	-1
Vary	Accept-Encoding
request-id	5da2e7bf-6d13-c4a3-7bea-3b39bdb611c8
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-PreferredRoutingKeyDiagnostics	0
X-CalculatedFETarget	DS7PR03CU011.internal.outlook.com
X-BackEndHttpStatus	200
Set-Cookie	ClientId=; expires=Thu, 01 Jan 1970 00:00:00 GMT; path=/
Set-Cookie	ClientId=7B8E213588214DA28E2F459D054876E8; expires=Wed, 10 Mar 2027 13:59:17 GMT; path=/; secure; samesite=none
X-CalculatedBETarget	DS0PR07MB10330.NAMPRD07.PROD.OUTLOOK.COM
X-BackEndHttpStatus	200
x-web-server-version	26.2.23.4
X-Clique	CLNAMPRD07DSM00
X-Content-Type-Options	nosniff
Content-Security-Policy	default-src .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft 'self'; script-src 'nonce-XLi/9zmB4I4w/9UKSS3lxw==' .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft amcdn.msftauth.net .skype.com .delve.office.com teams.microsoft.com blob: 'report-sample' 'self' js.monitor.azure.com .public.onecdn.static.microsoft; style-src .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft .skype.com fonts.googleapis.com 'self' 'unsafe-inline' 'report-sample' .engage.cloud.microsoft 'unsafe-inline'; img-src data: blob: cid: .office.com .office.net .office365.com .public.onecdn.static.microsoft * filesystem: .public.onecdn.static.microsoft; connect-src blob: data: .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft .services.web.outlook.com spoprod-a.akamaihd.net .bing.com login.live.com .office.net .office.com .office365.com .officeapps.live.com .skype.com .office.de browser.pipe.aria.microsoft.com media.licdn.com .facebook.com outlook.live.com graph.microsoft.com .graph.microsoft.com .users.storage.live.com .sharepoint.com .sharepoint.de .delve.office.com .loki.delve.office.com web.vortex.data.microsoft.com .events.data.microsoft.com .msedge.net teams.microsoft.com .teams.microsoft.com 'self' .engage.cloud.microsoft wss://augloop-dogfood.officeppe.com wss://.augloop-dogfood.officeppe.com wss://augloop-gcc.office.com wss://.augloop-gcc.office.com wss://augloop.office.com wss://.augloop.office.com wss://augloop.svc.cloud.microsoft wss://.augloop.svc.cloud.microsoft aesir.office.com .oscs.protection.outlook.com .safelinks.protection.outlook.com arc.msn.com .dynamics.com .mos.microsoft.com ris.api.iris.microsoft.com services.bingapis.com prod-autodetect.outlookmobile.com .googleapis.com admin.microsoft.com .bpa.microsoft.com teams.cloud.microsoft api.tenor.com attachment.outlook.live.net .msedge.net app.whiteboard.microsoft.com whiteboard.office.com whiteboard.cloud.microsoft outlook.cloud.microsoft identity.osi.office.net wss://substrate.office.com .adnxs.com wss://.trouter.teams.microsoft.com .cloud.microsoft .events.data.microsoft.com login.microsoftonline.com eu-office.events.data.microsoft.com; base-uri browser.pipe.aria.microsoft.com 'self'; form-action .officeapps.live.com .sharepoint.com login.microsoftonline.com; object-src .office.net 'self' attachments.office.net attachment.outlook.live.net; frame-ancestors 'self' teams.cloud.microsoft outlook.cloud.microsoft m365.cloud.microsoft 'self' teams.microsoft.com outlook.office.com .live.com; font-src data: .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft spoprod-a.akamaihd.net .skype.com sharepointonline.com .sharepointonline.com .delve.office.com fonts.gstatic.com static2.sharepointonline.com 'self' .engage.cloud.microsoft; media-src blob: .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft .skype.com .office.net .office365.net .office.com ssl.gstatic.com 'self' .engage.cloud.microsoft attachments.office.net attachment.outlook.live.net .sharepoint.com; frame-src .sharepoint-df.com .sharepoint.com .sharepoint.de .yammer.com login.microsoftonline.com outlook.office365.com webshell.suite.office.com www.youtube.com ms-appx-web: 'self' .office.com .cdn.office.net .access.mcas.ms; manifest-src outlook.office.com 'self'; worker-src 'self' blob: .res.office.com .office.com; child-src 'self' blob: .office.com; report-uri https://csp.microsoft.com/report/Office365-BookingsWeb-PROD; upgrade-insecure-requests;
x-app-name	Bookings
Referrer-Policy	no-referrer
Cross-Origin-Opener-Policy	same-origin-allow-popups
Document-Policy	include-js-call-stacks-in-crash-reports
X-Client-Version	20260227002.16
x-besku	UNKNOWN
X-RUM-Validated	1
X-RUM-NotUpdateQueriedPath	1
X-RUM-NotUpdateQueriedDbCopy	1
X-Proxy-RoutingCorrectness	1
X-Proxy-BackendServerStatus	200
X-BEPartition	Clique/CLNAMPRD07DSM00
X-FEEFZInfo	MNZ
MS-CV	v+eiXRNto8R76js5vbYRyA.1.1
X-FEServer	DS7PR03CA0322
Alt-Svc	":443";ma=2592000,h3-29=":443";ma=2592000
X-FirstHopCafeEFZ	MNZ
X-FEProxyInfo	MN2PR07CA0022.NAMPRD07.PROD.OUTLOOK.COM
X-Powered-By	ASP.NET
X-FEServer	MN2PR07CA0022
Date	Tue, 10 Mar 2026 13:58:52 GMT

Analysis

Same-host permanent redirection

This is a little-bit unusual. There's a permanent redirection from a root to a specific path on the same site. This may cause problems if the subpath ever changes. A temporary redirection is more appropriate in this case.

From: https://bookings.cloud.microsoft/

To: https://bookings.cloud.microsoft/bookings/

Information leakage in HTTP response header

Header value: ASP.NET

Header name: X-Powered-By

WWW TLS

Test passed

Everything seems to be well configured. Well done.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:5062:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

Excellent. This server supports TLS 1.3, which is the latest revision of the TLS protocol and a significant improvement over earlier versions. Developed over a period of several years and extensively analyzed prior to the release, TLS 1.3 removed insecure features, and improved both security and performance.

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:4158:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:860:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:403c:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:505b:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:207:459:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:4836:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (2603:1036:302:840:0:0:0:2)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.111.50)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (40.104.47.98)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.230.162)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.38.82)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.88.34)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.181.34)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (52.96.62.226)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: bookings.cloud.microsoft (40.104.46.34)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp384r1 Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: secp256r1 Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Suite ID: 0xc028 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp384r1 (384 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 256 bits (ECDHE 384 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Suite ID: 0xc027 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC secp256r1 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 128 bits (ECDHE 256 bits)

Analysis

TLS 1.3 supported

TLS 1.2 supported

Deprecated protocols not supported

Excellent. This server doesn't support any of the deprecated protocol (TLS 1.1 and earlier).

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

Server is not compliant with Chrome's CT requirements

Not all TLS connections with this server satisfy Chrome's CT requirements even. This is not necessarily a problem, as CT compliance is only required for certificates issued from May 2018.

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

WWW Certificates

Test failed

We've detected serious problems that require your immediate attention.

Certificate: bookings.cloud.microsoft

Leaf certificate

bookings.cloud.microsoft
Issuer: Unknown
Not Before: 26 Feb 2026 21:21:08 UTC
Not After: 22 Feb 2027 03:21:08 UTC (expires in 11 months 11 days)
Key: RSA 2048 bits
Signature: SHA256withRSA
View details

Names	bookings.cloud.microsoft
Subject DN	CN=bookings.cloud.microsoft
Subject Key Identifier	c9ffa67eb2067daa7f2e5bab713928f15e83d424
Serial	4eff916c7271450bc782a9e8497a1e70
Not Before	26 Feb 2026 21:21:08 UTC
Not After	22 Feb 2027 03:21:08 UTC
Validity period	361 days
Key Usage	digitalSignature, keyEncipherment
Extended Key Usage	serverAuth, clientAuth
Must Staple	No
Issuer
Issuer DN	CN=CCME G1 TLS RSA 2048 SHA256 2049 CUS CA 01
Certification Authority	Unknown
Validation Type	Unknown
Authority Key Identifier	keyid:fce45a0a2f850ee744b9077378e0d44407a21911
Parent Certificate	http://primary-cdn.pki.core.windows.net/centralus/cacerts/ccmecentraluspki/ccmecentralusica01/cert.cer http://secondary-cdn.pki.core.windows.net/centralus/cacerts/ccmecentraluspki/ccmecentralusica01/cert.cer http://crl.microsoft.com/centralus/cacerts/ccmecentraluspki/ccmecentralusica01/cert.cer http://ccmecentraluspki.centralus.pki.core.windows.net/certificateAuthorities/ccmecentralusica01
CRL	http://primary-cdn.pki.core.windows.net/centralus/crls/ccmecentraluspki/ccmecentralusica01/62/current.crl http://secondary-cdn.pki.core.windows.net/centralus/crls/ccmecentraluspki/ccmecentralusica01/62/current.crl http://crl.microsoft.com/centralus/crls/ccmecentraluspki/ccmecentralusica01/62/current.crl http://ccmecentraluspki.centralus.pki.core.windows.net/certificateAuthorities/ccmecentralusica01/62/current.crl
Fingerprints
SHA1	255b3b8d1091a95edf5c1459b641350191d7daef
SHA256	99d0a56357847638c0a737cb3e5f16fb8d765fdb52fad645a3d606c4d8464bfd
SPKI SHA256	25a40663347ec06ab732188e5804fcc58e521d1471d2789b409ade69ed9ce825

Analysis

Strong private key

Good. The private key associated with this certificate is secure.

Strong signature algorithm

Good. This certificate uses a strong signature algorithm.

Certificate matches hostname

Good. The provided certificate matches the expected hostnames.

Certificate dates match

Good. The certificate is valid for use at this point of time.

Certificate has not been revoked

Good. This certificate has not been revoked.

Certificate doesn't embed any CT log signatures

This certificate doesn't include any information related to Certificate Transparency.

Certificate chain is incorrect

This certificate is delivered as part of an incorrect certificate chain. The problems in the chain render the certificate invalid too. Although some clients (typically browsers) are able to fix or rebuild certificate chains, it's generally not safe to assume that all browsers can.

Certificate not publicly trusted

This certificate is not trusted and can't be used on public web sites.

Certificate Trust

Determining whether a certificate is considered valid is a complicated process that depends on the exact configuration of the validating party. For trust to be established, the certificate must form a chain that ends with a trusted root. In this section we evaluate the server's certificate against major root stores.

Platform	Trusted
Apple
Google AOSP
Microsoft
Mozilla

Certificate Chain

For a server certificate to be valid, it must be presented as part of a complete and valid certificate chain. The last certificate in the chain should be the root and is usually not included in the configuration.

Leaf certificate

bookings.cloud.microsoft | 99d0a56
Not After: 22 Feb 2027 03:21:08 UTC (expires in 11 months 11 days)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Names	bookings.cloud.microsoft
Subject DN	CN=bookings.cloud.microsoft
Subject Key Identifier	c9ffa67eb2067daa7f2e5bab713928f15e83d424
Serial	4eff916c7271450bc782a9e8497a1e70
Not Before	26 Feb 2026 21:21:08 UTC
Not After	22 Feb 2027 03:21:08 UTC
Validity period	361 days
Key Usage	digitalSignature, keyEncipherment
Extended Key Usage	serverAuth, clientAuth
Must Staple	No
Issuer
Issuer DN	CN=CCME G1 TLS RSA 2048 SHA256 2049 CUS CA 01
Certification Authority	Unknown
Validation Type	Unknown
Authority Key Identifier	keyid:fce45a0a2f850ee744b9077378e0d44407a21911
Parent Certificate	http://primary-cdn.pki.core.windows.net/centralus/cacerts/ccmecentraluspki/ccmecentralusica01/cert.cer http://secondary-cdn.pki.core.windows.net/centralus/cacerts/ccmecentraluspki/ccmecentralusica01/cert.cer http://crl.microsoft.com/centralus/cacerts/ccmecentraluspki/ccmecentralusica01/cert.cer http://ccmecentraluspki.centralus.pki.core.windows.net/certificateAuthorities/ccmecentralusica01
CRL	http://primary-cdn.pki.core.windows.net/centralus/crls/ccmecentraluspki/ccmecentralusica01/62/current.crl http://secondary-cdn.pki.core.windows.net/centralus/crls/ccmecentraluspki/ccmecentralusica01/62/current.crl http://crl.microsoft.com/centralus/crls/ccmecentraluspki/ccmecentralusica01/62/current.crl http://ccmecentraluspki.centralus.pki.core.windows.net/certificateAuthorities/ccmecentralusica01/62/current.crl
Fingerprints
SHA1	255b3b8d1091a95edf5c1459b641350191d7daef
SHA256	99d0a56357847638c0a737cb3e5f16fb8d765fdb52fad645a3d606c4d8464bfd
SPKI SHA256	25a40663347ec06ab732188e5804fcc58e521d1471d2789b409ade69ed9ce825

Intermediate certificate

CCME G1 TLS RSA 2048 SHA256 2049 CUS CA 01 | fcc8e1c
Not After: 19 Nov 2030 23:45:18 UTC (expires in 4 years 8 months)
Authentication: RSA 2048 bits (SHA384withRSA)
View details

Subject DN	CN=CCME G1 TLS RSA 2048 SHA256 2049 CUS CA 01
Subject Key Identifier	fce45a0a2f850ee744b9077378e0d44407a21911
Serial	33000000073f440972ee75ceff000000000007
Not Before	19 Nov 2024 23:45:18 UTC
Not After	19 Nov 2030 23:45:18 UTC
Validity period	2192 days
Key Usage	digitalSignature, keyCertSign, cRLSign
Extended Key Usage	clientAuth, serverAuth, 1.3.6.1.4.1.311.20.2.1, 1.3.6.1.4.1.311.10.3.12, 2.23.133.8.3
Issuer
Issuer DN	CN=Commercial Cloud Root CA R1, O=Microsoft Corporation, C=US
Certification Authority	Unknown
Validation Type	Not Applicable
Authority Key Identifier	keyid:63d901a9ff10cc90b3bc20543dbd4639f91209ad
Parent Certificate	http://crl.microsoft.com/pkiops/certs/Commercial%20Cloud%20Root%20CA%20R1.crt
CRL	http://crl.microsoft.com/pkiops/crl/Commercial%20Cloud%20Root%20CA%20R1.crl
CA certificate	Yes (pathlen 0)
Fingerprints
SHA1	b3f9d5f2d37e5775a7a1010aa3bfa6e8c56dd829
SHA256	fcc8e1c81177a5938d04dc45ba5384b75997661910bf9c7cb8d53e42accbc84a
SPKI SHA256	82a65b1edd67c8fb45f399347fc174290687ccfb45f4431ef7b2e6a241f7aa4e

Analysis

Poorly constructed certificate chain

This server is not configured with a correct certificate chain. The possible problems include missing certificates, incorrect certificate order, or unrelated certificates present in the chain. In a correct chain, one certificate is immediately followed by its parent. The final, root, certificate can be omitted. This problem is often difficult to troubleshoot because some clients know how to reconstruct a chain starting with the leaf. Although this behavior is common in browsers, it cannot be relied upon in a general case.

DANE (443)

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Cookies

Cookies are small chunks of text that are sent between your browser and a website. They are often essential to the operation of the site and sometimes contain sensitive information. Session cookies sent from secure sites must be explicitly marked as secure to prevent being obtained by active network attackers.

Test passed, but there are warnings

Some aspect of your site's configuration require your attention.

HTTP Cookie: ClientId

Cookie value. As far as the cookie RFC is concerned, the value is an opaque string which only the application should interpret.Value
Cookie domain. When domain is implied (not explicitly set in a cookie), most browsers (but not IE) treat the cookie as host-only, meaning that no other server can overwrite it.Domain	Implied (bookings.cloud.microsoft)
Cookie path. This field can't be used as security measure, but it could be of use to avoid cookie name collision in non-adversarial contexts.Path	/
Cookies are designed to always expire. Session cookies are truly ephemeral and remain cached until the browser is closed. The Expires and Max-Age cookie attributes can be used to specify that a cookie should stay alive for longer.Expires	Thu Jan 01 00:00:00 UTC 1970 (-56 years -2 months)
The HttpOnly flag prevents the cookie from being accessed from JavaScript, thus making them more difficult to obtain after a successful XSS attack.HttpOnly
The Secure flag signals to browsers that the cookie should be transmitted only over an encrypted channel.Secure
Normally, when a browser makes a request to a web site, it sends all associated cookies. This is not always desirable, because it might allow third-party sites to perform site actions under the identity of the user. This attack is known as Cross-Site Request Forgery. With SameSite cookies (still in development, but already supported in some browsers), you can choose to be more strict. The possible values are 'lax' and 'strict'.SameSite

Analysis

Cookie is not secure

This cookie, which has been sent over an encrypted channel, doesn't have the secure flag set. As a result, an active network attacker can easily recover it.

HTTP Cookie: ClientId

Cookie value. As far as the cookie RFC is concerned, the value is an opaque string which only the application should interpret.Value	7B8E213588214DA28E2F459D054876E8
Cookie domain. When domain is implied (not explicitly set in a cookie), most browsers (but not IE) treat the cookie as host-only, meaning that no other server can overwrite it.Domain	Implied (bookings.cloud.microsoft)
Cookie path. This field can't be used as security measure, but it could be of use to avoid cookie name collision in non-adversarial contexts.Path	/
Cookies are designed to always expire. Session cookies are truly ephemeral and remain cached until the browser is closed. The Expires and Max-Age cookie attributes can be used to specify that a cookie should stay alive for longer.Expires	Wed Mar 10 13:59:17 UTC 2027 (11 months 27 days)
The HttpOnly flag prevents the cookie from being accessed from JavaScript, thus making them more difficult to obtain after a successful XSS attack.HttpOnly
The Secure flag signals to browsers that the cookie should be transmitted only over an encrypted channel.Secure
Normally, when a browser makes a request to a web site, it sends all associated cookies. This is not always desirable, because it might allow third-party sites to perform site actions under the identity of the user. This attack is known as Cross-Site Request Forgery. With SameSite cookies (still in development, but already supported in some browsers), you can choose to be more strict. The possible values are 'lax' and 'strict'.SameSite

Analysis

Cookie is secure

Good. This cookie is marked secure, which means that it won't ever be transmitted over plaintext. As such, it's not vulnerable to the Sidejacking attack.

HTML Content

On virtually all web sites, HTML markup, images, style sheets, JavaScript, and other page resources arrive not only over multiple connections but possibly from multiple servers and sites spread across the entire Internet. For a page to be properly encrypted, it’s necessary that all the content is retrieved over HTTPS. In practice, that’s very often not the case, leading to mixed content security problems.

Test passed

Everything seems to be well configured. Well done.

Encryption of Embedded Resources

In this section we look at the transport security of all embedded resources. Mixed active content occurs when there are unprotected scripts or styles embedded in a page. This is typically not allowed by modern browsers. Mixed passive content (images, videos and such) are typically allowed, but shouldn't be present.

1 script(s)
1 out of 1 are secure View all

Status	Link
Encrypted	https://res.public.onecdn.static.microsoft/...sindexv2.19418745.js

0 CSS file(s)
0 out of 0 are secure

1 media file(s)
1 out of 1 are secure View all

Status	Link
Encrypted	https://res.public.onecdn.static.microsoft/...mework/microsoft.svg

Encryption of Outbound Links

Ideally, an encrypted page should only have links that lead to other encrypted pages. If plaintext links are used, passive network attackers can see where people go after they visit your web site. It's also possible that some sensitive information is leaked in the Referer header.

0 link(s)
0 out of 0 are encrypted

HTTP Strict Transport Security

HTTP Strict Transport Security (HSTS) vastly improves security of the network encryption layer. With HSTS enabled, browsers no longer allow clicking through certificate warnings errors, which are typically trivial to exploit. Additionally, they will no longer submit insecure (plaintext) requests to the site in question, even if asked.

Test passed, but there are warnings

Some aspect of your site's configuration require your attention.

HSTS Policy Main host

URL from which this policy was obtained.Location	https://bookings.cloud.microsoft/bookings/
Specifies policy duration. Once activated, HSTS stays in force until this time lapses. Browsers update policy cache duration every time they receive a new HSTS header from a site.max‑age	31,536,000 seconds (about 1 year)
When present, this directive forces HSTS activation on allsubdomains. For best security, HSTS should be deployed on the bare domain name (e.g., example.com) and all its subdomains.includeSubDomains
Presence of this directive indicates that a web site wishes to permanently use HSTS and that its policy information should be preloaded (embedded in browsers).preload

Analysis

Policy is valid

OK. Your HSTS policy uses correct syntax.

Long policy age

Your HSTS policy has a long max-age value, which offers better protection.

Policy covers subdomains

When subdomains are included, network attackers are unable to manufacture arbitrary subdomains to manipulate cookies and trick users.

HSTS won't activate because cert(s) not trusted

This server appears to be deploying HSTS with one or more certificates that are not publicly trusted. Under these circumstances, browsers will ignore the HSTS configuration.

Location: bookings.cloud.microsoft

Redirection from HTTP to HTTPS to the same host

Good. The redirection from HTTP to HTTPS is to the same host. This approach ensures that HSTS is activated on the hostname when it's accessed via plaintext.

Policy preloaded

Excellent. This host is covered by a preloaded HSTS policy.

Preloaded host: microsoft; includeSubDomains=true

No parent protection

This host could benefit from further protection if the apex hostname would be configured with a HSTS policy that uses 'includeSubDomains'. Enabling HSTS on an entire domain name is the only approach that provides robust security.

HSTS Policy Apex host

URL from which this policy was obtained.Location	https://cloud.microsoft
Specifies policy duration. Once activated, HSTS stays in force until this time lapses. Browsers update policy cache duration every time they receive a new HSTS header from a site.max‑age	31,536,000 seconds (about 1 year)
When present, this directive forces HSTS activation on allsubdomains. For best security, HSTS should be deployed on the bare domain name (e.g., example.com) and all its subdomains.includeSubDomains
Presence of this directive indicates that a web site wishes to permanently use HSTS and that its policy information should be preloaded (embedded in browsers).preload

Analysis

Policy is valid

OK. Your HSTS policy uses correct syntax.

Long policy age

Your HSTS policy has a long max-age value, which offers better protection.

No subdomains

This HSTS policy doesn't cover subdomains. Without full coverage, HSTS can't protect from certain cookie attacks that typically allow active network attackers to inject cookies into an application. Additionally, subdomain coverage is one of the requirements to allow preloading.

Preloading not enabled

This policy doesn't give browsers permission to embed it and provide protection even to the first request to the web site. Sites that wish to use preloading can apply at hstspreload.org.

Redirection from HTTP to HTTPS not to the same host

When HSTS is used, the plaintext port should redirect to the HTTPS variant of the same hostname. This approach ensures that HSTS is enabled on that hostname, even if later the client is sent elsewhere. A redirection to another host is only safe if it is for a parent host that has HSTS with includeSubDomains enabled, but that's not the case here.

Starting point: http://cloud.microsoft

Current redirection: https://m365.cloud.microsoft/

Expected redirection: https://cloud.microsoft

Policy preloaded

Excellent. This host is covered by a preloaded HSTS policy.

Preloaded host: microsoft; includeSubDomains=true

Analysis

Policy set on plaintext port

HSTS policies must not be transmitted over insecure channels.

Location: http://cloud.microsoft

HTTP Public Key Pinning

HTTP Public Key Pinning (HPKP) enables site operators to restrict which certificates are considered valid for their domain names. With a valid HPKP configuration, sites can defeat man in the middle (MITM) attacks using fraudulent or misissued certificates. HPKP is an advanced feature, suitable for use by only high-profile web sites.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Content Security Policy

Content Security Policy (CSP) is a security mechanism that allows web sites control how browsers process their pages. In essence, sites can restrict what types of resources are loaded and from where. CSP policies can be used to defend against cross-site scripting, prevent mixed content issues, as well as report violations for investigation.

Test passed

Everything seems to be well configured. Well done.

Content-Security-Policy

default-src	.res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft *.public.onecdn.static.microsoft 'self'
script-src	'nonce-XLi/9zmB4I4w/9UKSS3lxw==' .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft amcdn.msftauth.net .skype.com *.delve.office.com teams.microsoft.com blob: 'report-sample' 'self' js.monitor.azure.com
style-src	.res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft .skype.com fonts.googleapis.com 'self' This parameter shouldn't be used because it reenables insecure behavior that CSP disables by default.'unsafe-inline' 'report-sample' *.engage.cloud.microsoft
img-src	data: blob: cid: filesystem: *
connect-src	blob: data: .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft .services.web.outlook.com spoprod-a.akamaihd.net .bing.com login.live.com .office.net .office.com .office365.com .officeapps.live.com .skype.com .office.de browser.pipe.aria.microsoft.com media.licdn.com .facebook.com outlook.live.com graph.microsoft.com .graph.microsoft.com .users.storage.live.com .sharepoint.com .sharepoint.de .delve.office.com .loki.delve.office.com web.vortex.data.microsoft.com .events.data.microsoft.com .msedge.net teams.microsoft.com .teams.microsoft.com 'self' .engage.cloud.microsoft wss://augloop-dogfood.officeppe.com wss://.augloop-dogfood.officeppe.com wss://augloop-gcc.office.com wss://.augloop-gcc.office.com wss://augloop.office.com wss://.augloop.office.com wss://augloop.svc.cloud.microsoft wss://.augloop.svc.cloud.microsoft aesir.office.com .oscs.protection.outlook.com .safelinks.protection.outlook.com arc.msn.com .dynamics.com .mos.microsoft.com ris.api.iris.microsoft.com services.bingapis.com prod-autodetect.outlookmobile.com .googleapis.com admin.microsoft.com .bpa.microsoft.com teams.cloud.microsoft api.tenor.com attachment.outlook.live.net app.whiteboard.microsoft.com whiteboard.office.com whiteboard.cloud.microsoft outlook.cloud.microsoft identity.osi.office.net wss://substrate.office.com .adnxs.com wss://.trouter.teams.microsoft.com *.cloud.microsoft login.microsoftonline.com eu-office.events.data.microsoft.com
base-uri	browser.pipe.aria.microsoft.com 'self'
form-action	.officeapps.live.com .sharepoint.com login.microsoftonline.com
object-src	*.office.net 'self' attachments.office.net attachment.outlook.live.net
frame-ancestors	'self' teams.cloud.microsoft outlook.cloud.microsoft m365.cloud.microsoft teams.microsoft.com outlook.office.com *.live.com
font-src	data: .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft spoprod-a.akamaihd.net .skype.com sharepointonline.com .sharepointonline.com .delve.office.com fonts.gstatic.com static2.sharepointonline.com 'self' *.engage.cloud.microsoft
media-src	blob: .res.office.com .res.office365.com .cdn.office.net .df.onecdn.static.microsoft .public.onecdn.static.microsoft .skype.com .office.net .office365.net .office.com ssl.gstatic.com 'self' .engage.cloud.microsoft attachments.office.net attachment.outlook.live.net *.sharepoint.com
frame-src	.sharepoint-df.com .sharepoint.com .sharepoint.de .yammer.com login.microsoftonline.com outlook.office365.com webshell.suite.office.com www.youtube.com ms-appx-web: 'self' .office.com .cdn.office.net *.access.mcas.ms
manifest-src	outlook.office.com 'self'
worker-src	'self' blob: .res.office.com .office.com
child-src	'self' blob: *.office.com
report-uri	https://csp.microsoft.com/report/Office365-BookingsWeb-PROD
upgrade-insecure-requests

Analysis

Mixed content upgraded

Good. This CSP policy instructs browsers to seamlessly upgrade plaintext resources to encryption.

Inline styles are allowed

This policy allows inline styles. Although they are not as bad as inline scripts in terms of security, an injection bug in script area would allow the attacker to modify page appearance.

Analysis

CSP policy detected

Header: Content-Security-Policy

Value: default-src *.res.office.com *.res.office365.com *.cdn.office.net *.df.onecdn.static.microsoft *.public.onecdn.static.microsoft 'self'; script-src 'nonce-XLi/9zmB4I4w/9UKSS3lxw==' *.res.office.com *.res.office365.com *.cdn.office.net *.df.onecdn.static.microsoft *.public.onecdn.static.microsoft amcdn.msftauth.net *.skype.com *.delve.office.com teams.microsoft.com blob: 'report-sample' 'self' js.monitor.azure.com *.public.onecdn.static.microsoft; style-src *.res.office.com *.res.office365.com *.cdn.office.net *.df.onecdn.static.microsoft *.public.onecdn.static.microsoft *.skype.com fonts.googleapis.com 'self' 'unsafe-inline' 'report-sample' *.engage.cloud.microsoft 'unsafe-inline'; img-src data: blob: cid: *.office.com *.office.net *.office365.com *.public.onecdn.static.microsoft * filesystem: *.public.onecdn.static.microsoft; connect-src blob: data: *.res.office.com *.res.office365.com *.cdn.office.net *.df.onecdn.static.microsoft *.public.onecdn.static.microsoft *.services.web.outlook.com spoprod-a.akamaihd.net *.bing.com login.live.com *.office.net *.office.com *.office365.com *.officeapps.live.com *.skype.com *.office.de browser.pipe.aria.microsoft.com media.licdn.com *.facebook.com outlook.live.com graph.microsoft.com *.graph.microsoft.com *.users.storage.live.com *.sharepoint.com *.sharepoint.de *.delve.office.com *.loki.delve.office.com web.vortex.data.microsoft.com *.events.data.microsoft.com *.msedge.net teams.microsoft.com *.teams.microsoft.com 'self' *.engage.cloud.microsoft wss://augloop-dogfood.officeppe.com wss://*.augloop-dogfood.officeppe.com wss://augloop-gcc.office.com wss://*.augloop-gcc.office.com wss://augloop.office.com wss://*.augloop.office.com wss://augloop.svc.cloud.microsoft wss://*.augloop.svc.cloud.microsoft aesir.office.com *.oscs.protection.outlook.com *.safelinks.protection.outlook.com arc.msn.com *.dynamics.com *.mos.microsoft.com ris.api.iris.microsoft.com services.bingapis.com prod-autodetect.outlookmobile.com *.googleapis.com admin.microsoft.com *.bpa.microsoft.com teams.cloud.microsoft api.tenor.com attachment.outlook.live.net *.msedge.net app.whiteboard.microsoft.com whiteboard.office.com whiteboard.cloud.microsoft outlook.cloud.microsoft identity.osi.office.net wss://substrate.office.com *.adnxs.com wss://*.trouter.teams.microsoft.com *.cloud.microsoft *.events.data.microsoft.com login.microsoftonline.com eu-office.events.data.microsoft.com; base-uri browser.pipe.aria.microsoft.com 'self'; form-action *.officeapps.live.com *.sharepoint.com login.microsoftonline.com; object-src *.office.net 'self' attachments.office.net attachment.outlook.live.net; frame-ancestors 'self' teams.cloud.microsoft outlook.cloud.microsoft m365.cloud.microsoft 'self' teams.microsoft.com outlook.office.com *.live.com; font-src data: *.res.office.com *.res.office365.com *.cdn.office.net *.df.onecdn.static.microsoft *.public.onecdn.static.microsoft spoprod-a.akamaihd.net *.skype.com sharepointonline.com *.sharepointonline.com *.delve.office.com fonts.gstatic.com static2.sharepointonline.com 'self' *.engage.cloud.microsoft; media-src blob: *.res.office.com *.res.office365.com *.cdn.office.net *.df.onecdn.static.microsoft *.public.onecdn.static.microsoft *.skype.com *.office.net *.office365.net *.office.com ssl.gstatic.com 'self' *.engage.cloud.microsoft attachments.office.net attachment.outlook.live.net *.sharepoint.com; frame-src *.sharepoint-df.com *.sharepoint.com *.sharepoint.de *.yammer.com login.microsoftonline.com outlook.office365.com webshell.suite.office.com www.youtube.com ms-appx-web: 'self' *.office.com *.cdn.office.net *.access.mcas.ms; manifest-src outlook.office.com 'self'; worker-src 'self' blob: *.res.office.com *.office.com; child-src 'self' blob: *.office.com; report-uri https://csp.microsoft.com/report/Office365-BookingsWeb-PROD; upgrade-insecure-requests;

Location: https://bookings.cloud.microsoft/bookings/

Subresource Integrity

Subresource Integrity (SRI) is a new standard that enables browsers to verify the integrity of embedded page resources (e.g., scripts and stylesheets) when they are loaded from third-party web sites. With SRI deployed, remote resources can be used safely, without fear of them being modified by malicious parties.

Test passed

Everything seems to be well configured. Well done.

1 script(s)
1 out of 1 are secure View all

Status	Link
Hashed	https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.bookingsindexv2.19418745.js

No external stylesheets
SRI not needed

Analysis

All SRI resource hashes match those of actual resources

Good. We have verified that all hash values configured in the HTML markup match those of actual remote resources.

All SRI resources are enabled for cross-origin access

Good. All SRI resources have the 'crossorigin' attribute, enabling them for cross-origin access. This is a requirement for SRI configuration to be activated.

All remote servers allow cross-origin requests

Good. All remote servers are correctly configured to allow cross-origin requests. This is a requirement for SRI to work correctly.

SRI protects all remote resources

Excellent. All remote resources on this page are correctly configured and protected from unexpected modification on the servers where they are hosted.

Expect CT

Expect-CT is a deprecated response HTTP header designed to enable web sites to monitor problems related to their Certificate Transparency (CT) compliance. Should any CT issues arise, browsers that supported this header will submit reports to the specified reporting endpoint. Chrome was the browser that introduced support for this response header, but later deprecated it and removed it in version 107.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Analysis

Deploy Expect-CT to enable reporting

An Expect-CT policy enables web sites to monitor for any problems related to their Expect-CT compliance, detecting potentially serious issues quickly. When issues arise, compliant browsers will submit reports to the specified reporting endpoints. Before CT became required for all public certificates the Expect-CT was also used to require CT, but that use case no longer applies.

Frame Options

The X-Frame-Options header controls page framing, which occurs when a page is incorporated into some other page, possibly on a different site. If framing is allowed, attackers can employ clever tricks to make victims perform arbitrary actions on your site; they do this by showing their web site while forwarding the victim's clicks to yours.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

XSS Protection

Some browsers ship with so-called XSS Auditors, built-in defenses against XSS. Although these defenses work against simple reflective XSS attacks, they can be abused by skillful attackers to add weaknesses to otherwise secure web sites. These dangers are present in both filtering and blocking modes. At this time, the Safari browser ships with its XSS defenses enabled by default. For this reason, the best approach is to explicitly disable this functionality.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Analysis

Explicitly disable browser XSS protection

For best security, every web site should explicitly disable browser-based XSS protection. This is because this type of functionality can be used to introduce vulnerabilities into otherwise error-free web sites.

Content Type Options

Some browsers use a technique called content sniffing to override response MIME types provided by HTTP servers and interpret responses as something else (usually HTML). This behavior, which could potentially lead to security issues, should be disabled by attaching an X-Content-Type-Options header to all responses.

Test passed

Everything seems to be well configured. Well done.

Analysis

Header information

Name: X-Content-Type-Options

Value: nosniff

Valid configuration

Good. Your configuration is valid. This means that browsers won't try to guess file MIME type on this web site.

Close Details