SSL-Tools

SSL check results of cock.li

NEW You can also bulk check multiple servers.

Discover if the mail servers for cock.li can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

JSON Refresh

Report created Mon, 28 Jul 2025 19:29:09 +0000

We can not guarantee a secure connection to the mailservers of cock.li!

Please contact the operator of cock.li and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/cock.li

Servers

Incoming Mails

These servers are responsible for incoming mails to @cock.li addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.cock.li
2001:ac8:7d:1e::c0cc:4
 10
supported
mx1.cock.li
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
mx1.cock.li
37.120.193.125
 10
supported
mx1.cock.li
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
7 s
mx2.cock.li
2001:ac8:7d:1e::c0cc:2
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mx2.cock.li
37.120.193.123
Results incomplete
20
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
4 s

Outgoing Mails

We have received emails from these servers with @cock.li sender addresses. Test mail delivery

Host TLS Version & Cipher
mx1.cock.li (185.10.68.5)
TLSv1.3 TLS_AES_256_GCM_SHA384

Certificates

First seen at:

CN=mx1.cock.li

Certificate chain
  • mx1.cock.li
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx1.cock.li
Alternative Names
  • mx1.cock.li
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-07-18
Not valid after
2025-10-16
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
5B:16:B2:53:BD:56:55:F4:4E:67:5C:32:68:20:BB:44:BA:E2:03:5D:AE:CD:67:B4:9A:8F:77:74:C0:15:68:A4
SHA1
5A:D3:A9:CE:47:08:60:D7:ED:45:47:8A:AF:0F:1C:83:65:A1:29:F1
X509v3 extensions
subjectKeyIdentifier
  • E9:D9:5F:9A:3A:19:9B:A5:13:4C:55:44:CE:FB:12:64:98:68:5C:96
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r10.c.lencr.org/26.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13:
  • F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A
  • Timestamp : Jul 18 06:06:35.864 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:5A:D6:F7:52:5C:91:80:C9:AD:50:E8:ED:
  • DA:AA:4C:7F:AF:6C:7D:56:7F:EF:FC:E7:DA:DF:CD:08:
  • 20:19:86:76:02:20:3C:A1:18:64:F3:6A:BB:FB:58:E2:
  • C8:40:38:FA:53:D5:D5:F9:22:E4:02:FE:7D:D5:AC:E8:
  • A2:55:21:51:E2:A0
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Jul 18 06:06:37.851 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:47:E8:E5:08:3C:86:3E:FB:FD:25:1C:2B:
  • F3:03:DB:FF:F9:ED:FA:95:6B:32:DB:E4:EB:C2:83:36:
  • 01:88:48:B5:02:21:00:B6:FE:29:A4:A7:88:1F:9A:83:
  • CB:99:4B:0C:20:02:A1:2E:12:F8:B4:F8:2C:11:80:C2:
  • 0B:79:49:8B:84:48:21