SSL-Tools

SSL check results of duck.industries

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Discover if the mail servers for duck.industries 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

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Report created Mon, 14 Sep 2026 08:58:44 +0000

The mailservers of duck.industries can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @duck.industries addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
duck.industries
87.138.150.40
 10
supported
duck.industries
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=duck.industries

Certificate chain
  • duck.industries
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • YE2
        • remaining
        • 384 bit
        • ecdsa-with-SHA384
          • Root YE
            • remaining
            • 384 bit
            • ecdsa-with-SHA384
              • ISRG Root X2 (Certificate is self-signed.)
                • remaining
                • 384 bit
                • ecdsa-with-SHA384
Subject
Common Name (CN)
  • duck.industries
Alternative Names
  • duck.industries
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YE2
validity period
Not valid before
2026-09-02
Not valid after
2026-12-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
C5:56:46:96:3F:A9:14:DB:CC:77:45:BE:FB:C4:AA:DB:0D:A4:B8:E4:A3:A2:12:75:C7:C9:D8:46:4F:C2:70:00
SHA1
2C:AC:49:8F:06:9D:B0:59:4D:76:85:8B:4C:E3:30:B7:9E:6D:EB:70
X509v3 extensions
subjectKeyIdentifier
  • D8:95:42:17:E1:52:DB:9C:53:97:14:83:DD:95:71:84:67:60:43:C4
authorityKeyIdentifier
  • keyid:B9:59:F2:8E:CF:22:F0:86:D3:37:48:FF:76:14:18:BA:82:D8:55:87
authorityInfoAccess
  • CA Issuers - URI:http://ye2.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://ye2.c.lencr.org/11.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
  • C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
  • Timestamp : Sep 2 05:42:41.066 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:31:AB:C2:E2:23:03:AD:F3:3E:F9:21:7A:
  • 89:3E:C5:8E:5C:4B:71:C1:B4:2A:BC:D2:61:74:34:28:
  • 9C:85:70:6D:02:20:40:FF:79:B2:4A:A4:26:09:8B:E2:
  • FC:4D:82:08:FB:17:00:22:FF:8D:1D:E8:95:B7:3D:B9:
  • 32:D7:AD:B8:F5:73
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0:
  • D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F
  • Timestamp : Sep 2 05:42:41.152 2026 GMT
  • Extensions: 00:00:05:00:22:D3:66:6B
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:7C:DE:41:2E:9B:FF:9D:A2:2F:B5:F4:4D:
  • 41:48:1C:C2:22:42:21:D8:4B:97:69:48:E6:51:6A:84:
  • CD:4E:C7:F7:02:21:00:BD:05:B0:92:D5:15:90:09:79:
  • EB:40:11:49:70:88:F2:43:DB:7C:C3:D0:03:B4:29:20:
  • 4B:98:4D:9A:C0:68:81