SSL check results of codelabworks.is-cool.dev

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Discover if the mail servers for codelabworks.is-cool.dev 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

Report created Sat, 02 Nov 2024 01:30:40 +0000

The mailservers of codelabworks.is-cool.dev can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @codelabworks.is-cool.dev addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail10.serv00.com
128.204.223.112
10
supported
*.serv00.com
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 @codelabworks.is-cool.dev address so far. Test mail delivery

Certificates

First seen at:

CN=*.serv00.com

Certificate chain
  • *.serv00.com
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption

      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption

Subject
Common Name (CN)
  • *.serv00.com
Alternative Names
  • *.serv00.com
  • serv00.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2024-09-23
Not valid after
2024-12-22
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
97:2C:D4:25:1B:8A:21:02:E1:58:0B:9E:4E:B1:D3:71:5D:38:8D:8B:1A:73:48:E6:67:EF:5E:F3:D6:99:83:0D
SHA1
DF:17:C1:9B:4E:E8:E7:AF:3B:6D:50:E6:65:59:9A:56:3C:33:0E:8A
X509v3 extensions
subjectKeyIdentifier
  • CF:BB:17:0D:62:09:DA:CA:D1:98:FB:61:36:1C:25:38:67:25:EB:F2
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • OCSP - URI:http://r11.o.lencr.org
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Sep 24 00:15:05.288 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B4:C2:FC:A0:83:E1:FD:A2:35:63:AA:
  • CF:33:00:5B:F5:89:6C:93:84:C8:05:65:BE:CA:3B:7C:
  • 1B:D8:05:85:23:02:20:3C:C8:5F:50:75:E5:FA:CE:BA:
  • 2E:E8:89:B7:04:6D:AE:76:18:8F:C9:17:A9:35:64:EB:
  • 17:31:2E:98:07:CE:38
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DF:E1:56:EB:AA:05:AF:B5:9C:0F:86:71:8D:A8:C0:32:
  • 4E:AE:56:D9:6E:A7:F5:A5:6A:01:D1:C1:3B:BE:52:5C
  • Timestamp : Sep 24 00:15:05.439 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:64:53:BB:9D:A8:02:C3:7A:23:46:10:BE:
  • E7:21:0B:87:7B:4C:46:EF:CA:A6:08:0F:7B:C5:DA:C5:
  • 9D:96:CE:D2:02:21:00:CF:5B:B9:74:E2:A8:08:4B:38:
  • 4B:82:A1:DC:7E:25:16:38:19:BF:32:F7:3F:55:09:B8:
  • 04:7A:EA:7A:49:BC:F8