SSL-Tools

SSL check results of gcstech.net

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Discover if the mail servers for gcstech.net 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 11:39:05 +0000

The mailservers of gcstech.net can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @gcstech.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
efa4.gcstech.net
192.82.99.185
 10
supported
efa4.gcstech.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
7 s

Outgoing Mails

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

Certificates

First seen at:

CN=efa4.gcstech.net

Certificate chain
  • efa4.gcstech.net
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • efa4.gcstech.net
Alternative Names
  • efa4.gcstech.net
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-04-15
Not valid after
2024-07-14
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
97:EC:1C:80:B4:CB:EF:84:5D:27:5A:CF:79:9F:0E:A6:81:02:FF:30:EC:2C:AA:49:30:51:1A:BD:7B:BF:80:55
SHA1
5B:44:D1:A6:41:B0:4A:0E:E5:54:D2:D5:34:CD:DD:25:EC:AC:9F:5F
X509v3 extensions
subjectKeyIdentifier
  • 5E:F0:91:F2:9C:37:12:96:30:9E:37:D1:7F:6C:06:1C:E7:2A:A2:7B
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 : 3F:17:4B:4F:D7:22:47:58:94:1D:65:1C:84:BE:0D:12:
  • ED:90:37:7F:1F:85:6A:EB:C1:BF:28:85:EC:F8:64:6E
  • Timestamp : Apr 15 04:07:02.407 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:B8:83:52:0B:05:A4:0D:EE:C9:36:5E:
  • 47:15:C7:63:71:4B:50:A9:18:AA:4B:00:E0:50:75:86:
  • 2B:FC:60:53:C0:02:21:00:D2:8E:E1:AC:B6:58:85:F3:
  • 33:77:67:56:44:F9:C1:AE:1D:C9:72:19:D4:6F:4D:5E:
  • 90:82:F9:11:05:6A:B4:7C
  • 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 : Apr 15 04:07:02.425 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:3E:18:16:66:6D:CE:B0:91:52:DA:E7:88:
  • 6D:A2:3B:F4:A4:2C:BC:32:DA:A0:95:2A:A7:47:41:C8:
  • 04:45:ED:04:02:20:77:46:1D:1C:95:46:30:66:57:20:
  • DD:42:58:63:41:86:C5:B4:60:FA:76:32:C2:35:BB:E5:
  • 7C:50:5E:0C:12:AB