Web Security Overview
Supported and well configured
HTTPS

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.

For all sites VERY IMPORTANT medium EFFORT
Supported and well configured
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
Supported and well configured
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.

For important sites VERY IMPORTANT medium EFFORT
Supported and well configured
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
Not supported
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
Supported and well configured
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.

For all sites VERY IMPORTANT low EFFORT
Supported and well configured
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
Supported and well configured
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 passed
Everything seems to be well configured. Well done.

Nameserver Names

Nameservers can be referred to by name and by address. In this section we show the names, which can appear in the NS records, the referrals from the parent zone, and the SOA record. In some situations, servers from the parent zone respond authoritatively, in which case we will include them in the list as well.

Nameserver Operational IPv4 IPv6 Sources
ganz.ns.cloudflare.com. PRIMARY
108.162.195.40
162.159.44.40
172.64.35.40
2606:4700:58::a29f:2c28
2803:f800:50::6ca2:c328
2a06:98c1:50::ac40:2328
The server is online. Name resolves to an IPv4 address. Name resolves to an IPv6 address. REFERRAL NS SOA
jean.ns.cloudflare.com.
108.162.192.121
172.64.32.121
173.245.58.121
2606:4700:50::adf5:3a79
2803:f800:50::6ca2:c079
2a06:98c1:50::ac40:2079
The server is online. Name resolves to an IPv4 address. Name resolves to an IPv6 address. REFERRAL NS

Nameserver Addresses

This section shows the configuration of all discovered nameservers by their IP address. To find all applicable nameservers, we inspect the parent zone nameservers for names and glue and then the tested zone nameservers for NS records. We then resolve all discovered names to IP addresses. Finally, we test each address individually.

Nameserver Operational Authoritative Recursive UDP TCP Sources Payload Size
108.162.192.121
jean.ns.cloudflare.com.
PTR: jean.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
108.162.195.40 PRIMARY
ganz.ns.cloudflare.com.
PTR: ganz.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
162.159.44.40 PRIMARY
ganz.ns.cloudflare.com.
PTR: ganz.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
172.64.32.121
jean.ns.cloudflare.com.
PTR: jean.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
172.64.35.40 PRIMARY
ganz.ns.cloudflare.com.
PTR: ganz.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
173.245.58.121
jean.ns.cloudflare.com.
PTR: jean.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
2606:4700:50::adf5:3a79
jean.ns.cloudflare.com.
PTR: jean.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
2606:4700:58::a29f:2c28 PRIMARY
ganz.ns.cloudflare.com.
PTR: ganz.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
2803:f800:50::6ca2:c079
jean.ns.cloudflare.com.
PTR: jean.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
2803:f800:50::6ca2:c328 PRIMARY
ganz.ns.cloudflare.com.
PTR: ganz.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
2a06:98c1:50::ac40:2079
jean.ns.cloudflare.com.
PTR: jean.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232
2a06:98c1:50::ac40:2328 PRIMARY
ganz.ns.cloudflare.com.
PTR: ganz.ns.cloudflare.com.
The server appears to be online. Nameserver provides authoritative responses Nameserver doesn't provide recursive service Nameserver responds to UDP queries Nameserver responds to TCP queries NAME 1232

Start of Authority (SOA) Record

Start of Authority (SOA) records contain administrative information pertaining to one DNS zone, especially the configuration that's used for zone transfers between the primary nameserver and the secondaries. Only one SOA record should exist, with all nameservers providing the same information.

The domain name of the primary nameserver for the zone. Also known as MNAME.Primary nameserver ganz.ns.cloudflare.com.
Email address of the persons responsible for this zone. Also known as RNAME.Admin email dns.cloudflare.com.
Zone serial or version number.Serial number -2006896448
The length of time secondary nameservers should wait before querying the primary for changes.Refresh interval 10,000 seconds (about 2 hours 46 minutes)
The length of time secondary nameservers should wait before querying an unresponsive primary again.Retry interval 2,400 seconds (about 40 minutes)
The length of time after which secondary nameservers should stop responding to queries for a zone, assuming no updates were obtained from the primary.Expire interval 604,800 seconds (about 7 days)
TTL for purposes of negative response caching. Negative cache TTL 3,600 seconds (about 1 hour)
Time To Live (TTL) indicates for how long a record remains valid. SOA record TTL 3,600 seconds (about 1 hour)

Analysis

Good
No problems detected with the zone configuration
Excellent. This DNS zone is in a good working order. No problems detected.

Backing DNS Queries

Below are all DNS queries we submitted during the zone inspection.

ID Server Transport Question Name Type Status

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
freshuk.co.il.     300 A 172.66.40.199            
freshuk.co.il.     300 A 172.66.43.57            
www.freshuk.co.il.     300 A 172.66.40.199            
www.freshuk.co.il.     300 A 172.66.43.57            
freshuk.co.il.     300 AAAA 2606:4700:3108:0:0:0:ac42:2b39            
freshuk.co.il.     300 AAAA 2606:4700:3108:0:0:0:ac42:28c7            
www.freshuk.co.il.     300 AAAA 2606:4700:3108:0:0:0:ac42:2b39            
www.freshuk.co.il.     300 AAAA 2606:4700:3108:0:0:0:ac42:28c7            
freshuk.co.il.     3600 CAA 0 issuewild "letsencrypt.org"            
freshuk.co.il.     3600 CAA 0 issuewild "pki.goog; cansignhttpexchanges=yes"            
freshuk.co.il.     3600 CAA 0 issue "digicert.com; cansignhttpexchanges=yes"            
freshuk.co.il.     3600 CAA 0 issuewild "digicert.com; cansignhttpexchanges=yes"            
freshuk.co.il.     3600 CAA 0 issue "comodoca.com"            
freshuk.co.il.     3600 CAA 0 issue "letsencrypt.org"            
freshuk.co.il.     3600 CAA 0 issue "pki.goog; cansignhttpexchanges=yes"            
freshuk.co.il.     3600 CAA 0 issuewild "comodoca.com"            
freshuk.co.il.     3600 DNSKEY 257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==            
freshuk.co.il.     3600 DNSKEY 256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==            
freshuk.co.il.     300 HTTPS 1 . alpn=h3,h3-29,h2 ipv4hint=172.66.40.199,172.66.43.57 ipv6hint=2606:4700:3108:0:0:0:ac42:28c7,2606:4700:3108:0:0:0:ac42:2b39            
www.freshuk.co.il.     300 HTTPS 1 . alpn=h3,h3-29,h2 ipv4hint=172.66.40.199,172.66.43.57 ipv6hint=2606:4700:3108:0:0:0:ac42:28c7,2606:4700:3108:0:0:0:ac42:2b39            
freshuk.co.il.     300 MX 10 alt4.aspmx.l.google.com.            
freshuk.co.il.     300 MX 1 aspmx.l.google.com.            
freshuk.co.il.     300 MX 5 alt1.aspmx.l.google.com.            
freshuk.co.il.     300 MX 5 alt2.aspmx.l.google.com.            
freshuk.co.il.     300 MX 10 alt3.aspmx.l.google.com.            
freshuk.co.il.     86400 NS jean.ns.cloudflare.com.            
freshuk.co.il.     86400 NS ganz.ns.cloudflare.com.            
freshuk.co.il.     3600 SOA ganz.ns.cloudflare.com. dns.cloudflare.com. 2288070848 10000 2400 604800 3600            
freshuk.co.il.     300 TXT "google-site-verification=YjkaOzzj0lGKjHAtW9NH6FVbXaXmZBLbLofeVZYSvqU"            
freshuk.co.il.     300 TXT "uqebatbvliigl315qmu8i62p6d"            
freshuk.co.il.     300 TXT "google-site-verification=7SkKOCf2uG_3WvMY7rDkKZELXH2EfrToBgWNYoNsz70"            
freshuk.co.il.     300 TXT "pinterest-site-verification=4281979f31a7dd88f41406d59745fe14"            
freshuk.co.il.     300 TXT "v=spf1 include:servers.mcsv.net include:zcsend.net include:_spf.google.com a ~all"            
freshuk.co.il.     300 TXT "zoho-verification=zb03337803.zmverify.zoho.com"            
freshuk.co.il.     300 TXT "facebook-domain-verification=6j2j17fb91feoo9jrjoptjv69dnc48"            
_dmarc.freshuk.co.il.     300 TXT "v=DMARC1; p=quarantine; rua=mailto:ipm3v23@ar.glockapps.com,mailto:dmarc@freshuk.uriports.com,mailto:rua-import-26057@sendforensics.com; ruf=mailto:ipm3v23@fr.glockapps.com,mailto:dmarc@freshuk.uriports.com; fo=1; pct=100; ri=86400;"            
_mta-sts.freshuk.co.il.     300 CNAME freshuk-co-il._mta-sts.uriports.com.            
freshuk-co-il._mta-sts.uriports.com.     1000 TXT "v=STSv1; id=20211227163055Z;"            
_smtp._tls.freshuk.co.il.     300 TXT "v=TLSRPTv1; rua=mailto:tlsrpt@freshuk.uriports.com"            

Backing DNS Queries

Below are all DNS queries we submitted while we 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.

Feature not applicable, not implemented, or disabled
Your server doesn't support this feature.

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 freshuk.co.il
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
comodoca.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
letsencrypt.org  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
pki.goog; cansignhttpexchanges=yes  flags: 0
The issuewild property has the same syntax and semantics as
the issue property except that issuewild properties only grant
authorization to issue certificates that specify a wildcard domain
and issuewild properties take precedence over issue properties when
specified.
issuewild
comodoca.com  flags: 0
The issuewild property has the same syntax and semantics as
the issue property except that issuewild properties only grant
authorization to issue certificates that specify a wildcard domain
and issuewild properties take precedence over issue properties when
specified.
issuewild
letsencrypt.org  flags: 0
The issuewild property has the same syntax and semantics as
the issue property except that issuewild properties only grant
authorization to issue certificates that specify a wildcard domain
and issuewild properties take precedence over issue properties when
specified.
issuewild
pki.goog; cansignhttpexchanges=yes  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; cansignhttpexchanges=yes  flags: 0
The issuewild property has the same syntax and semantics as
the issue property except that issuewild properties only grant
authorization to issue certificates that specify a wildcard domain
and issuewild properties take precedence over issue properties when
specified.
issuewild
digicert.com; cansignhttpexchanges=yes  flags: 0

Analysis

Good
CAA policy found
Good. This domain name uses CAA to restrict which CAs are allowed to issue certificates for it.
Powerup!
Policy doesn't use reporting
This policy doesn't use reporting, which means that there is no way to contact you when a violation is detected. The CAA RFC defines the iodef property that can be used for this purpose. 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
Everything seems to be well configured. Well done.
Some TLS and PKI information shown may have been retrieved from cache. The notes provide more information.
Server Preference Operational STARTTLS TLS PKI DNSSEC DANE
aspmx.l.google.com
2607:f8b0:4004:c0b:0:0:0:1a
PTR: bj-in-f26.1e100.net
1
220 mx.google.com ESMTP i8-20020ad45c68000000b004a2e424f57bsi1954772qvh.36 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [2600:1f18:753:1b00:eb42:a50a:13c8:2f67]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
aspmx.l.google.com
142.251.163.27
PTR: wv-in-f27.1e100.net
1
220 mx.google.com ESMTP fv13-20020a05622a4a0d00b0035bb43f5469si6033725qtb.267 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [18.233.176.231]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
alt1.aspmx.l.google.com
2a00:1450:400b:c00:0:0:0:1a
PTR: dg-in-f26.1e100.net
5
220 mx.google.com ESMTP q11-20020a1cf30b000000b003b4e4581ff8si946011wmq.117 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [2600:1f18:753:1b00:eb42:a50a:13c8:2f67]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
alt1.aspmx.l.google.com
209.85.202.26
PTR: dg-in-f26.1e100.net
5
220 mx.google.com ESMTP t8-20020adfe108000000b00228e149ae01si1832179wrz.577 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [18.233.176.231]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
alt2.aspmx.l.google.com
2a00:1450:400c:c0b:0:0:0:1a
PTR: wa-in-f26.1e100.net
5
220 mx.google.com ESMTP n8-20020a05600c4f8800b003b4fa44e892si2288701wmq.111 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [2600:1f18:753:1b00:eb42:a50a:13c8:2f67]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
alt2.aspmx.l.google.com
64.233.184.27
PTR: wa-in-f27.1e100.net
5
220 mx.google.com ESMTP m21-20020a05600c4f5500b003a970d2bf2esi3370031wmq.198 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [18.233.176.231]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
alt3.aspmx.l.google.com
2a00:1450:4025:401:0:0:0:1b
PTR: ra-in-f27.1e100.net
10
220 mx.google.com ESMTP xg7-20020a170907320700b0078269f2a117si4827303ejb.547 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [2600:1f18:753:1b00:eb42:a50a:13c8:2f67]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
alt3.aspmx.l.google.com
142.250.27.27
PTR: ra-in-f27.1e100.net
10
220 mx.google.com ESMTP q5-20020a170906144500b007811e006b46si5843910ejc.470 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [18.233.176.231]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
alt4.aspmx.l.google.com
2a00:1450:4013:c16:0:0:0:1a
PTR: ea-in-f26.1e100.net
10
220 mx.google.com ESMTP jr20-20020a170906a99400b0077de0f381f1si3884915ejb.811 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [2600:1f18:753:1b00:eb42:a50a:13c8:2f67]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.
alt4.aspmx.l.google.com
142.250.153.27
PTR: ea-in-f27.1e100.net
10
220 mx.google.com ESMTP nd22-20020a170907629600b00741550f828bsi7416651ejc.919 - gsmtp

EHLO outbound.hardenize.com
250-mx.google.com at your service, [18.233.176.231]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

STARTTLS
220 2.0.0 Ready to start TLS
Supports STARTTLS. Not supported. Not applicable,
requires TLS.

Analysis

Good
Email servers match MTA-STS policy
Good. This host supports MTA-STS, which means that it restricts which MX servers can be used and how they are configured. We've verified that all MX servers listed here match the policy.
Notice
Some SMTP server assessments have been retrieved from cache
Some SMTP server assessment results have been retrieved from our cache. Because many hosts point to the same SMTP servers, we use a short-term cache to avoid testing the same SMTP servers over and over again.

Latest cache timestamp: 24 Sep 2022 14:23 UTC

Earliest cache timestamp: 19 Sep 2022 12:50 UTC

Notice
Some SMTP server assessments contain partial information
Comprehensive TLS assessments require many connections, which is exactly what many SMTP servers don't like. We implement a two-tier assessment approach. To give you some results as fast as possible, we perform shallow assessments that use only one connection per SMTP server. We then have a background process that performs complete assessments slowly, trying to accommodate each server individually. The results presented here contain partial information. If you come back later we may be able to provide complete assessment resuls.

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.
Some TLS and PKI information shown may have been retrieved from cache. The notes provide more information.

TLS Configuration: aspmx.l.google.com (2607:f8b0:4004:c0b:0:0:0:1a) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2 Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
21 Sep 2022 17:45 UTC

Analysis

Good
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.
Good
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.
Notice
Partial results shown
SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.
Notice
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.

TLS Configuration: aspmx.l.google.com (142.251.163.27) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2 Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
24 Sep 2022 09:52 UTC

Analysis

Good
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.
Good
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.
Notice
Partial results shown
SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.
Notice
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.

TLS Configuration: alt1.aspmx.l.google.com (2a00:1450:400b:c00:0:0:0:1a) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2 Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
19 Sep 2022 12:50 UTC

Analysis

Good
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.
Good
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.
Notice
Partial results shown
SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.
Notice
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.

TLS Configuration: alt1.aspmx.l.google.com (209.85.202.26) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2 Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
21 Sep 2022 16:38 UTC

Analysis

Good
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.
Good
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.
Notice
Partial results shown
SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.
Notice
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.

TLS Configuration: alt2.aspmx.l.google.com (2a00:1450:400c:c0b:0:0:0:1a) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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_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_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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
22 Sep 2022 06:05 UTC

Analysis

Notice
Deprecated TLS 1.0 protocol supported
TLS 1.0 is a weak older protocol that should be phased out. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make decisions with confidence.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.
Good
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.
Notice
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.
Notice
DHE suites not supported
This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: alt2.aspmx.l.google.com (64.233.184.27) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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_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_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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
24 Sep 2022 14:23 UTC

Analysis

Notice
Deprecated TLS 1.0 protocol supported
TLS 1.0 is a weak older protocol that should be phased out. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make decisions with confidence.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.
Good
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.
Notice
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.
Notice
DHE suites not supported
This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: alt3.aspmx.l.google.com (2a00:1450:4025:401:0:0:0:1b) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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_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_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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
24 Sep 2022 00:03 UTC

Analysis

Notice
Deprecated TLS 1.0 protocol supported
TLS 1.0 is a weak older protocol that should be phased out. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make decisions with confidence.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.
Good
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.
Notice
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.
Notice
DHE suites not supported
This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: alt3.aspmx.l.google.com (142.250.27.27) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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_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_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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
23 Sep 2022 01:32 UTC

Analysis

Notice
Deprecated TLS 1.0 protocol supported
TLS 1.0 is a weak older protocol that should be phased out. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make decisions with confidence.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.
Good
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.
Notice
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.
Notice
DHE suites not supported
This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: alt4.aspmx.l.google.com (2a00:1450:4013:c16:0:0:0:1a) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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_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_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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
22 Sep 2022 07:07 UTC

Analysis

Notice
Deprecated TLS 1.0 protocol supported
TLS 1.0 is a weak older protocol that should be phased out. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make decisions with confidence.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.
Good
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.
Notice
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.
Notice
DHE suites not supported
This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: alt4.aspmx.l.google.com (142.250.153.27) Cached

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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_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_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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 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
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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits
These results have been retrieved from
our cache. This row indicates when was
that the original test ran.
Retrieved from cache
23 Sep 2022 02:33 UTC

Analysis

Notice
Deprecated TLS 1.0 protocol supported
TLS 1.0 is a weak older protocol that should be phased out. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make decisions with confidence.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.
Good
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.
Notice
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.
Notice
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
Everything seems to be well configured. Well done.
Some TLS and PKI information shown may have been retrieved from cache. The notes provide more information.

Certificate #1  Cached

Leaf certificate mx.google.com
Issuer: Google Trust Services LLC
Not Before: 05 Sep 2022 08:18:39 UTC
Not After: 28 Nov 2022 08:18:38 UTC (expires in 2 months 3 days)
Key: EC 256 bits
Signature: SHA256withRSA
 View details

Analysis

Good
Strong private key
Good. The private key associated with this certificate is secure.
Good
Strong signature algorithm
Good. This certificate uses a strong signature algorithm.
Good
Certificate matches hostname
Good. The provided certificate matches the expected hostnames.
Good
Certificate dates match
Good. The certificate is valid for use at this point of time.
Good
Certificate has not been revoked
Good. This certificate has not been revoked.
Good
Certificate satisfies Apple's CT compliance requirements
Good. This certificate satisfies Apple's CT requirements at present.

Certificate Chain

Leaf certificate
mx.google.com | 09b6211
Not After: 28 Nov 2022 08:18:38 UTC (expires in 2 months 3 days)
Authentication: EC 256 bits (SHA256withRSA)
 View details
Intermediate certificate
GTS CA 1C3 | 23ecb03
Not After: 30 Sep 2027 00:00:42 UTC (expires in 5 years 5 days)
Authentication: RSA 2048 bits (SHA256withRSA)
 View details
Intermediate certificate
GTS Root R1 | 3ee0278
Not After: 28 Jan 2028 00:00:42 UTC (expires in 5 years 4 months)
Authentication: RSA 4096 bits (SHA256withRSA)
 View details
Root certificate
GlobalSign Root CA | b41b2fb
Not After: 28 Jan 2014 12:00:00 UTC (expired 8 years 7 months ago)
Authentication: RSA 2048 bits (MD5withRSA)
 View details

Analysis

Good
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.

Test passed
Everything seems to be well configured. Well done.

SPF Policy Information Main policy

Host where this policy is located.Location freshuk.co.il
SPF version used by this policy.v spf1
Evaluates SPF policy specified in another DNS location. This
directive is typically used to allow hosts controlled by
another organization.
include
servers.mcsv.net
Evaluates SPF policy specified in another DNS location. This
directive is typically used to allow hosts controlled by
another organization.
include
zcsend.net
Evaluates SPF policy specified in another DNS location. This
directive is typically used to allow hosts controlled by
another organization.
include
_spf.google.com
This mechanism matches if the sending IP address
is one of the IP addresses that belong to the target
domain name. Matches both IPv4 and IPv6 addresses.
a
This policy element always matches. It's normally used
at the end of a policy to specify the handling of hosts
that don't match earlier mechanisms.
~all

Analysis

Info
SPF policy found

Policy text: v=spf1 include:servers.mcsv.net include:zcsend.net include:_spf.google.com a ~all

Location: freshuk.co.il

Good
SPF policy is valid
Good. Your SPF policy is valid.
Good
Policy DNS lookups under limit
Good. Your policy stays under the limit of up to 10 DNS queries. The SPF specification Section 4.6.4. requires implementations to limit the total number of DNS queries. Policies that exceed the limit should not be used and may not work in practice.

Lookups: 7

SPF Policy Information Included policy

Host where this policy is located.Location servers.mcsv.net
SPF version used by this policy.v spf1
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
205.201.128.0/20
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
198.2.128.0/18
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
148.105.8.0/21
This policy element always matches. It's normally used
at the end of a policy to specify the handling of hosts
that don't match earlier mechanisms.
-all

SPF Policy Information Included policy

Host where this policy is located.Location zcsend.net
SPF version used by this policy.v spf1
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
135.84.81.0/24
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
135.84.83.0/24
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
136.143.160.0/24
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
165.173.128.0/24
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
135.84.82.0/24
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
136.143.161.0/24
This policy element always matches. It's normally used
at the end of a policy to specify the handling of hosts
that don't match earlier mechanisms.
~all

SPF Policy Information Included policy

Host where this policy is located.Location _spf.google.com
SPF version used by this policy.v spf1
Evaluates SPF policy specified in another DNS location. This
directive is typically used to allow hosts controlled by
another organization.
include
_netblocks.google.com
Evaluates SPF policy specified in another DNS location. This
directive is typically used to allow hosts controlled by
another organization.
include
_netblocks2.google.com
Evaluates SPF policy specified in another DNS location. This
directive is typically used to allow hosts controlled by
another organization.
include
_netblocks3.google.com
This policy element always matches. It's normally used
at the end of a policy to specify the handling of hosts
that don't match earlier mechanisms.
~all

SPF Policy Information Included policy

Host where this policy is located.Location _netblocks.google.com
SPF version used by this policy.v spf1
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
35.190.247.0/24
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
64.233.160.0/19
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
66.102.0.0/20
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
66.249.80.0/20
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
72.14.192.0/18
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
74.125.0.0/16
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
108.177.8.0/21
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
173.194.0.0/16
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
209.85.128.0/17
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
216.58.192.0/19
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
216.239.32.0/19
This policy element always matches. It's normally used
at the end of a policy to specify the handling of hosts
that don't match earlier mechanisms.
~all

SPF Policy Information Included policy

Host where this policy is located.Location _netblocks2.google.com
SPF version used by this policy.v spf1
This mechanism tests whether the IP address being
tested is contained within a given IPv6 network.
ip6
2001:4860:4000::/36
This mechanism tests whether the IP address being
tested is contained within a given IPv6 network.
ip6
2404:6800:4000::/36
This mechanism tests whether the IP address being
tested is contained within a given IPv6 network.
ip6
2607:f8b0:4000::/36
This mechanism tests whether the IP address being
tested is contained within a given IPv6 network.
ip6
2800:3f0:4000::/36
This mechanism tests whether the IP address being
tested is contained within a given IPv6 network.
ip6
2a00:1450:4000::/36
This mechanism tests whether the IP address being
tested is contained within a given IPv6 network.
ip6
2c0f:fb50:4000::/36
This policy element always matches. It's normally used
at the end of a policy to specify the handling of hosts
that don't match earlier mechanisms.
~all

SPF Policy Information Included policy

Host where this policy is located.Location _netblocks3.google.com
SPF version used by this policy.v spf1
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
172.217.0.0/19
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
172.217.32.0/20
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
172.217.128.0/19
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
172.217.160.0/20
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
172.217.192.0/19
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
172.253.56.0/21
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
172.253.112.0/20
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
108.177.96.0/19
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
35.191.0.0/16
This mechanism tests whether the IP address being
tested is contained within a given IPv4 network.
ip4
130.211.0.0/22
This policy element always matches. It's normally used
at the end of a policy to specify the handling of hosts
that don't match earlier mechanisms.
~all

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.freshuk.co.il
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
quarantine
Addresses to which aggregate feedback is to be sent.rua mailto:ipm3v23@ar.glockapps.com,mailto:dmarc@freshuk.uriports.com,mailto:rua-import-26057@sendforensics.com
Addresses to which message-specific failure
information is to be reported.
ruf
mailto:ipm3v23@fr.glockapps.com,mailto:dmarc@freshuk.uriports.com
Configures failure reporting.fo 1
Percentage of messages from mail stream to
which the DMARC policy is to be applied.
pct
100
Interval between aggregate reports. Defaults to 86400.ri 86400

Analysis

Info
DMARC policy found

Policy: v=DMARC1; p=quarantine; rua=mailto:ipm3v23@ar.glockapps.com,mailto:dmarc@freshuk.uriports.com,mailto:rua-import-26057@sendforensics.com; ruf=mailto:ipm3v23@fr.glockapps.com,mailto:dmarc@freshuk.uriports.com; fo=1; pct=100; ri=86400;

Host: _dmarc.freshuk.co.il

Good
Valid external destination

Permission record location: freshuk.co.il._report._dmarc.ar.glockapps.com

External destination: mailto:ipm3v23@ar.glockapps.com

Permission record contents: v=DMARC1

Good
Valid external destination

Permission record location: freshuk.co.il._report._dmarc.freshuk.uriports.com

External destination: mailto:dmarc@freshuk.uriports.com

Permission record contents: v=DMARC1;

Good
Valid external destination

Permission record location: freshuk.co.il._report._dmarc.sendforensics.com

External destination: mailto:rua-import-26057@sendforensics.com

Permission record contents: v=DMARC1

Good
Valid external destination

Permission record location: freshuk.co.il._report._dmarc.fr.glockapps.com

External destination: mailto:ipm3v23@fr.glockapps.com

Permission record contents: v=DMARC1

Good
Valid external destination

Permission record location: freshuk.co.il._report._dmarc.freshuk.uriports.com

External destination: mailto:dmarc@freshuk.uriports.com

Permission record contents: v=DMARC1;

Good
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.

Test passed
Everything seems to be well configured. Well done.

MTA-STS Policy Indicator

Location from which we retrieved the policy indicator.Location _mta-sts.freshuk.co.il
MTA-STS standard version used by this policy indicator.Version STSv1
Unique policy identifier, whose value must change
every time the underlying policy changes.
ID
20211227163055Z

Analysis

Good
MTA-STS policy indicator valid
Good. Your MTA-STS policy indicator is valid.

MTA-STS Policy

The URL from which the policy was obtained.Location https://mta-sts.freshuk.co.il/.well-known/mta-sts.txt
Policy standard version.version STSv1
Policy duration, which specifies how long the sending
MTAs should remember and enforce the server policy for.
max‑age
2,419,200 seconds (about 28 days)
Policy mode, which can be one of 'none', 'testing' and
'enforcing'. Guess which is best! :)
mode
enforce
One 'mx' directive specifies one email server
pattern that's allowed for this host.
mx
alt3.aspmx.l.google.com
One 'mx' directive specifies one email server
pattern that's allowed for this host.
mx
alt4.aspmx.l.google.com
One 'mx' directive specifies one email server
pattern that's allowed for this host.
mx
aspmx.l.google.com
One 'mx' directive specifies one email server
pattern that's allowed for this host.
mx
alt1.aspmx.l.google.com
One 'mx' directive specifies one email server
pattern that's allowed for this host.
mx
alt2.aspmx.l.google.com

Analysis

Good
MTA-STS policy is valid
Good. Your MTA-STS policy is valid.
Good
Policy host certificate is valid
Good. Your MTA-STS policy is delivered via a web server that has a valid publicly trusted certificate. This is a necessary condition for the policy to be recognized.
Notice
Policy HTTPS response information

Status code: 200

Length: 180 bytes

Content-Type: text/plain;charset=UTF-8

Certificate: mta-sts.freshuk.co.il

Leaf certificate mta-sts.freshuk.co.il
Issuer: Let's Encrypt
Not Before: 25 Aug 2022 22:11:45 UTC
Not After: 23 Nov 2022 22:11:44 UTC (expires in 1 month 30 days)
Key: RSA 2048 bits
Signature: SHA256withRSA
 View details

Analysis

Good
Strong private key
Good. The private key associated with this certificate is secure.
Good
Strong signature algorithm
Good. This certificate uses a strong signature algorithm.
Good
Certificate matches hostname
Good. The provided certificate matches the expected hostnames.
Good
Certificate dates match
Good. The certificate is valid for use at this point of time.
Good
Certificate has not been revoked
Good. This certificate has not been revoked.
Good
Certificate satisfies Apple's CT compliance requirements
Good. This certificate satisfies Apple's CT requirements at present.

Certificate Chain

Leaf certificate
mta-sts.freshuk.co.il | 59d10b4
Not After: 23 Nov 2022 22:11:44 UTC (expires in 1 month 30 days)
Authentication: RSA 2048 bits (SHA256withRSA)
 View details
Intermediate certificate
R3 | 67add11
Not After: 15 Sep 2025 16:00:00 UTC (expires in 2 years 11 months)
Authentication: RSA 2048 bits (SHA256withRSA)
 View details
Intermediate certificate
ISRG Root X1 | 6d99fb2
Not After: 30 Sep 2024 18:14:03 UTC (expires in 2 years 6 days)
Authentication: RSA 4096 bits (SHA256withRSA)
 View details
Root certificate
DST Root CA X3 | 0687260
Not After: 30 Sep 2021 14:01:15 UTC (expired 11 months 25 days ago)
Authentication: RSA 2048 bits (SHA1withRSA)
 View details

Analysis

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

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.

Test passed
Everything seems to be well configured. Well done.

TLS-RPT Policy

Location from which we retrieved the policy indicator.Location _smtp._tls.freshuk.co.il
TLS-RPT standard version used by this policy indicator.Version TLSRPTv1
Reporting endpoints specified in the policy.Reporting Endpoints mailto:tlsrpt@freshuk.uriports.com

Analysis

Good
SMTP TLS-RPT policy valid
Good. Your TLS-RPT policy is valid. SMTP TLS Reporting is a young standard that is not yet widely supported, but support is probably going to increase over time.

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://freshuk.co.il/

1
http://freshuk.co.il/
HTTP/1.1 301 Moved Permanently
2
https://freshuk.co.il/
HTTP/1.1 200 OK

Analysis

Good
HTTP redirects to HTTPS
Good. This plaintext HTTP server redirects to HTTPS.

URL: http://www.freshuk.co.il/

1
http://www.freshuk.co.il/
HTTP/1.1 301 Moved Permanently
2
https://www.freshuk.co.il/
HTTP/1.1 301 Moved Permanently
3
https://freshuk.co.il/
HTTP/1.1 200 OK

Analysis

Good
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://freshuk.co.il/

1
https://freshuk.co.il/
HTTP/1.1 200 OK

URL: https://www.freshuk.co.il/

1
https://www.freshuk.co.il/
HTTP/1.1 301 Moved Permanently
2
https://freshuk.co.il/
HTTP/1.1 200 OK

WWW TLS

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: www.freshuk.co.il (2606:4700:3108:0:0:0:ac42:2b39)

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: AGL_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcc14
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
AGL_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
Suite ID: 0xc023
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
Suite ID: 0xc024
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
 256 bits (ECDHE 256 bits)
Suite: AGL_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcc13
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
AGL_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (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_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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 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_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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
 128 bits (ECDHE 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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
 256 bits (ECDHE 256 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
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
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 ecdh_x25519 (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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
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 ecdh_x25519 (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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits

Analysis

Notice
Deprecated protocols supported
TLS 1.0 and TLS 1.1 are deprecated protocols that should be disabled if possible. TLS 1.0, in particular, is a weak older protocol that has many weaknesses. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make a decision with confidence. As of July 2018, PCI DSS doesn't allow use of TLS 1.0. Exceptions apply in some cases.
Good
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.
Good
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.
Good
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.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.

SCT transports: CERT

Good
All TLS connections with this server satisfy Chrome'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.

SCT transports: CERT

Notice
DHE suites not supported
This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.freshuk.co.il (2606:4700:3108:0:0:0:ac42:28c7)

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: AGL_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcc14
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
AGL_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
Suite ID: 0xc023
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
Suite ID: 0xc024
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
 256 bits (ECDHE 256 bits)
Suite: AGL_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcc13
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
AGL_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (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_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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 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_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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
 128 bits (ECDHE 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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
 256 bits (ECDHE 256 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
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
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 ecdh_x25519 (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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
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 ecdh_x25519 (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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits

Analysis

Notice
Deprecated protocols supported
TLS 1.0 and TLS 1.1 are deprecated protocols that should be disabled if possible. TLS 1.0, in particular, is a weak older protocol that has many weaknesses. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make a decision with confidence. As of July 2018, PCI DSS doesn't allow use of TLS 1.0. Exceptions apply in some cases.
Good
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.
Good
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.
Good
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.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.

SCT transports: CERT

Good
All TLS connections with this server satisfy Chrome'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.

SCT transports: CERT

Notice
DHE suites not supported
This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.freshuk.co.il (172.66.40.199)

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: AGL_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcc14
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
AGL_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
Suite ID: 0xc023
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
Suite ID: 0xc024
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
 256 bits (ECDHE 256 bits)
Suite: AGL_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcc13
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
AGL_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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 ecdh_x25519 (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_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 ecdh_x25519 (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_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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
 256 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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 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_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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
 128 bits (ECDHE 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_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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
 256 bits (ECDHE 256 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
Shows cipher suite configuration for this protocol version.TLS v1.1
Server preference
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 ecdh_x25519 (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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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
Shows cipher suite configuration for this protocol version.TLS v1.0
Server preference
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 ecdh_x25519 (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_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
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 ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 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_3DES_EDE_CBC_SHA
Suite ID: 0xa
Cipher name: 3DES (WEAK)
Cipher strength: 112 bits
Cipher block size: 64 bits (WEAK)
Cipher mode: CBC
Key exchange: RSA
Key exchange strength: 2048 bits
Forward secrecy: No (WEAK)
PRF: SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
 112 bits

Analysis

Notice
Deprecated protocols supported
TLS 1.0 and TLS 1.1 are deprecated protocols that should be disabled if possible. TLS 1.0, in particular, is a weak older protocol that has many weaknesses. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make a decision with confidence. As of July 2018, PCI DSS doesn't allow use of TLS 1.0. Exceptions apply in some cases.
Good
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.
Good
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.
Good
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.
Good
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.
Good
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 settings enables negotiation of best security.
Good
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.

SCT transports: CERT

Good
All TLS connections with this server satisfy Chrome'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.

SCT transports: CERT

Notice
DHE suites not supported
This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: freshuk.co.il (2606:4700:3108:0:0:0:ac42:2b39)

Encryption protocol version determines what features are
available for negotiation between client and server.
Supported protocols
TLS v1.3
TLS v1.2
TLS v1.1
TLS v1.0
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_CHACHA20_POLY1305_SHA256
Suite ID: 0x1303
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
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: ecdh_x25519
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2
Server preference
Suite: AGL_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcc14
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
AGL_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca9
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Suite ID: 0xc02b
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Suite ID: 0xc009
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
Suite ID: 0xc02c
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: AEAD
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Suite ID: 0xc00a
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
Suite ID: 0xc023
Cipher name: AES
Cipher strength: 128 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
 128 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
Suite ID: 0xc024
Cipher name: AES
Cipher strength: 256 bits
Cipher block size: 128 bits
Cipher mode: CBC
Key exchange: ECDHE_ECDSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA384
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
 256 bits (ECDHE 256 bits)
Suite: AGL_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcc13
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
AGL_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)
Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Suite ID: 0xcca8
Cipher name: CHACHA20
Cipher strength: 256 bits
Cipher mode: AEAD
Key exchange: ECDHE_RSA
Key exchange strength: EC ecdh_x25519 (256 bits)
Forward secrecy: Yes
PRF: SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
 256 bits (ECDHE 256 bits)