SSL-Tools

SSL check results of cirspb.ru

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Discover if the mail servers for cirspb.ru 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 Sat, 27 Apr 2024 13:04:57 +0000

The mailservers of cirspb.ru can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @cirspb.ru addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx.cir.cx
2a00:13c0:400:fcfe::f242
 1
supported
*.cir.cx
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
10 s
mx.cir.cx
62.152.37.148
 1
supported
*.cir.cx
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
9 s

Outgoing Mails

We have not received any emails from a @cirspb.ru address so far. Test mail delivery

Certificates

First seen at:

CN=*.cir.cx

Certificate chain
  • *.cir.cx
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.cir.cx
Alternative Names
  • *.cir.cx
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-02-19
Not valid after
2024-05-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
2B:81:09:1D:08:9F:03:A9:DF:9C:8C:F2:5A:9B:97:82:58:23:7C:44:FE:C9:D5:69:1C:20:30:BA:6E:18:24:6A
SHA1
76:C4:C0:7E:8D:34:8F:14:EB:08:B5:7C:60:F6:56:08:9C:70:0F:19
X509v3 extensions
subjectKeyIdentifier
  • 25:36:F2:86:1A:C1:4A:AC:6A:76:EA:05:7E:91:4E:FF:46:31:46:F1
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Feb 19 07:42:25.615 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:21:43:21:DC:9A:30:A4:E1:D7:71:30:79:
  • 88:E8:00:97:B3:29:02:5A:BA:43:6D:A3:C0:02:17:FD:
  • C8:A0:A3:24:02:20:2E:33:DB:06:AD:13:B6:A2:09:1B:
  • D6:85:E1:D5:9E:86:B3:D9:BD:F3:41:BF:04:4B:29:B8:
  • 86:7F:BB:BA:03:C5
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E2:BF:D6:1E:DE:2F:2F:07:A0:D6:4E:6D:37:A7:DC:
  • 65:43:B0:C6:B5:2E:A2:DA:B7:8A:F8:9A:6D:F5:17:D8
  • Timestamp : Feb 19 07:42:26.116 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:70:5E:E1:AC:40:4C:30:FF:60:C8:82:11:
  • 66:6A:53:B0:F6:48:21:42:BE:44:6C:DC:B0:A9:8A:55:
  • 83:D2:54:6A:02:21:00:8A:BC:8C:E6:9D:2D:26:3A:1F:
  • 89:CE:09:C0:46:DD:8F:63:1B:F5:12:A9:D6:65:E4:1B:
  • 30:EF:64:0B:82:22:76