SSL-Tools

SSL check results of mail.sterndu.com

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Discover if the webservers of mail.sterndu.com can be reached through a secure connection.

Summary

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Report created Sun, 14 Sep 2025 17:17:21 +0000

The webservers of mail.sterndu.com can be reached through a secure connection.

Servers

Hostname / IP address Certificates Protocol
mail.sterndu.com
85.215.196.96
 mail.sterndu.com
HSTS
unexpected EOF
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mail.sterndu.com
2a01:239:253:9600::1
 mail.sterndu.com
HSTS
unexpected EOF
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Certificates

First seen at:

CN=mail.sterndu.com

Certificate chain
  • mail.sterndu.com
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.sterndu.com
Alternative Names
  • mail.sterndu.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-08-04
Not valid after
2025-11-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
F1:B3:BB:10:F8:98:00:75:DA:78:BC:07:DE:79:18:9F:37:93:DA:75:A2:C2:A3:F3:B3:D8:C4:45:7C:85:2E:CF
SHA1
0A:60:46:40:4A:61:7B:69:7E:2C:E8:EA:BE:AE:14:DF:F5:07:9B:04
X509v3 extensions
subjectKeyIdentifier
  • 0A:DC:32:12:79:A6:54:B8:6F:D0:30:E0:BA:D7:54:E1:13:42:77:E3
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/80.crl
ct_precert_scts
  • 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 : Aug 4 17:07:18.954 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:00:E9:E8:40:E8:78:E9:0C:6A:68:BA:8D:
  • 30:C3:8C:D0:A5:7D:0E:A6:84:66:B1:5F:4C:8D:B0:9F:
  • 43:45:72:F2:02:20:25:3A:B2:3F:09:C7:7D:D5:BA:8C:
  • 25:EB:27:30:14:E6:F0:97:9C:78:71:4A:B2:95:81:60:
  • D7:1F:F6:20:9E:1C
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 1A:04:FF:49:D0:54:1D:40:AF:F6:A0:C3:BF:F1:D8:C4:
  • 67:2F:4E:EC:EE:23:40:68:98:6B:17:40:2E:DC:89:7D
  • Timestamp : Aug 4 17:07:19.016 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:1C:46:B7:C9:F0:67:BF:F3:6E:B7:BF:FB:
  • 16:1D:9B:FD:71:5C:E8:16:52:1C:2A:ED:DE:80:5E:B4:
  • D3:23:F6:42:02:20:79:F8:09:44:B4:E5:97:A1:B8:B7:
  • 39:7C:12:B5:09:5E:E7:A9:95:01:E0:56:53:4B:57:99:
  • C1:31:36:7E:5A:00