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SSL check results of dl9nbj.de

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Discover if the mail servers for dl9nbj.de 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 Thu, 10 Jul 2025 20:02:03 +0000

The mailservers of dl9nbj.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @dl9nbj.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
dl9nbj.de
87.106.107.135
 20
supported
dl9nbj.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @dl9nbj.de address so far. Test mail delivery

Certificates

First seen at:

CN=dl9nbj.de

Certificate chain
  • dl9nbj.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • dl9nbj.de
Alternative Names
  • *.dl9nbj.de
  • dl9nbj.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-07-10
Not valid after
2025-10-08
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
F4:E0:DF:9F:8C:A2:89:6A:99:61:7B:C3:4E:0F:16:9C:47:87:EF:B3:91:17:BF:AE:55:6A:90:CC:AB:26:22:13
SHA1
17:39:DA:D9:50:4A:B5:57:6E:BA:D1:76:53:5F:30:E0:CE:42:A7:9E
X509v3 extensions
subjectKeyIdentifier
  • D1:EA:43:80:A2:8B:BF:66:12:2C:6B:56:5C:42:34:A1:B2:89:30:91
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r11.c.lencr.org/18.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : ED:3C:4B:D6:E8:06:C2:A4:A2:00:57:DB:CB:24:E2:38:
  • 01:DF:51:2F:ED:C4:86:C5:70:0F:20:DD:B7:3E:3F:E0
  • Timestamp : Jul 10 13:41:15.174 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B8:26:C6:AA:1E:30:BD:C3:E7:9E:F3:
  • 57:79:76:EC:13:06:66:83:19:A9:2A:9C:6D:24:FA:7B:
  • 70:FE:AA:AB:C0:02:20:0A:3E:CC:83:E4:6D:EE:C3:8B:
  • B7:F9:30:DC:31:79:67:A5:55:73:E8:02:11:FE:1F:A6:
  • F4:35:AC:AC:E9:09:8D
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0D:E1:F2:30:2B:D3:0D:C1:40:62:12:09:EA:55:2E:FC:
  • 47:74:7C:B1:D7:E9:30:EF:0E:42:1E:B4:7E:4E:AA:34
  • Timestamp : Jul 10 13:41:17.165 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:9D:9B:DF:8D:16:1F:09:16:36:44:C3:
  • A5:F9:2F:89:62:29:FB:1A:70:62:28:BF:A0:96:91:E8:
  • 2D:1C:5B:A2:95:02:20:1F:4E:93:4B:BD:74:63:EB:60:
  • 43:08:26:0B:D9:FD:49:69:F0:FA:D5:D8:B0:68:83:51:
  • 86:CB:D5:E8:6D:68:18