SSL-Tools

SSL check results of aboutsignal.com

NEW You can also bulk check multiple servers.

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

Summary

JSON Refresh

Report created Mon, 27 Oct 2025 08:26:21 +0000

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

Servers

Hostname / IP address Certificates Protocol
aboutsignal.com
217.154.210.120
 aboutsignal.com
HSTS
unexpected EOF
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
aboutsignal.com
2a01:239:3b3:9d00::1
Results incomplete
not checked
HSTS
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Certificates

First seen at:

CN=aboutsignal.com

Certificate chain
  • aboutsignal.com
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R12
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • aboutsignal.com
Alternative Names
  • aboutsignal.com
  • www.aboutsignal.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R12
validity period
Not valid before
2025-10-27
Not valid after
2026-01-25
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
9E:FB:51:88:87:CB:9E:71:FC:8C:D4:46:FA:CA:C7:5A:E5:B7:8B:22:00:4E:0C:51:56:E1:64:CA:6A:22:49:C0
SHA1
02:5E:99:A6:63:16:F3:3E:1C:04:71:92:B2:84:38:D8:F9:1E:8F:EA
X509v3 extensions
subjectKeyIdentifier
  • CD:2D:B4:F5:92:CF:F8:A5:96:57:AB:39:6F:90:6D:24:27:41:53:2C
authorityKeyIdentifier
  • keyid:00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
authorityInfoAccess
  • CA Issuers - URI:http://r12.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r12.c.lencr.org/35.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:
  • F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7
  • Timestamp : Oct 27 07:33:55.194 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:0C:74:87:D4:AB:7B:E5:61:0B:F2:6B:A4:
  • F5:75:F7:0F:BF:1E:F3:AF:6A:CE:F0:2E:49:25:29:35:
  • F0:55:0A:24:02:21:00:CF:86:92:92:0A:C9:55:CF:0A:
  • 48:0D:CF:DA:80:DE:F4:1C:2F:FF:AA:27:E5:EE:16:D3:
  • DC:59:2E:25:76:7D:EA
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 49:9C:9B:69:DE:1D:7C:EC:FC:36:DE:CD:87:64:A6:B8:
  • 5B:AF:0A:87:80:19:D1:55:52:FB:E9:EB:29:DD:F8:C3
  • Timestamp : Oct 27 07:33:55.180 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:CC:37:C4:DB:B8:63:77:25:CB:27:0C:
  • 16:E6:55:16:F1:11:E3:B3:9B:C4:E2:3E:30:F7:25:30:
  • 7C:27:B7:A1:BE:02:20:52:0A:54:8A:33:E8:60:19:2C:
  • D2:C8:D7:82:3D:6B:57:1A:58:A8:9E:5B:E2:FE:9A:E7:
  • 38:B5:60:6B:70:0D:49