DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

comm-core.com · 198.181.167.250:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
CN=*.comm-core.com
Issuer
C=US O=SSL Corporation CN=SSL.com TLS Issuing RSA CA R1
Valid from
2026-09-15T19:19:29+00:00
Expires
2027-04-01T19:26:58+00:00
Days remaining
183
Serial (hex)
53E3C68ED51B15024C25C9E103A5777B
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.comm-core.com, DNS:comm-core.com

SHA-256 fingerprint

51:28:26:59:AB:95:24:59:25:92:25:88:0A:BC:71:8A:77:93:20:F6:29:CB:D4:7D:11:B8:4F:95:8F:1F:36:4A
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
79:BA:94:77:A0:0D:19:DD:34:E6:39:A4:FC:4C:A5:D2:5A:6D:F5:8C
authorityInfoAccess
CA Issuers - URI:http://cert.ssl.com/SSL.com-TLS-I-RSA-R1.cer OCSP - URI:http://ocsps.ssl.com
subjectAltName
DNS:*.comm-core.com, DNS:comm-core.com
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.38064.1.3.1.1
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crls.ssl.com/SSL.com-TLS-I-RSA-R1.crl
subjectKeyIdentifier
CC:14:CC:F0:37:9A:44:B3:9F:B7:8D:17:4A:45:D9:A1:9E:8F:7F:C7
keyUsage
Digital Signature, Key Encipherment
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Sep 15 19:29:31.028 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:C5:59:99:6A:5F:DB:D2:AB:45:B9:D7: AE:10:62:D7:0D:40:9E:6E:1A:3A:C1:23:12:E8:C1:24: FD:76:35:21:C0:02:21:00:DD:91:73:51:5E:F8:BA:F2: 94:EE:62:0D:3C:C9:7C:E5:99:64:F2:07:E0:57:15:AF: 98:83:BC:8C:36:BB:C5:A5 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Sep 15 19:29:31.013 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D6:F3:8A:40:AB:13:4E:9C:9A:FF:A2: CD:03:EE:A6:73:58:3E:C5:A0:D9:41:20:A4:A3:88:AC: 20:0D:C5:E9:3F:02:20:4A:59:B6:4A:54:8C:76:59:AD: 32:4E:42:2C:53:40:D3:0E:F2:D8:B0:C8:C4:13:28:DD: 13:80:DE:7C:80:91:6E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Sep 15 19:29:31.085 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:95:6E:35:E4:B8:B8:23:C0:FA:14:9B: 28:67:42:F1:D6:73:C7:F4:FD:57:2F:AB:2B:FB:5A:11: 59:D8:82:D8:1D:02:20:06:7A:E6:91:E9:70:35:50:10: 6F:60:2B:50:11:39:96:5C:4C:C2:ED:89:6E:B7:4A:19: BE:BC:5A:56:B2:5A:A4
-----BEGIN CERTIFICATE-----
MIIGdDCCBNygAwIBAgIQU+PGjtUbFQJMJcnhA6V3ezANBgkqhkiG9w0BAQsFADBP
MQswCQYDVQQGEwJVUzEYMBYGA1UECgwPU1NMIENvcnBvcmF0aW9uMSYwJAYDVQQD
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ZLyXbQaGwYgSZq0kG5HXRWpMeLQkzSpb
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-30T12:47:25+00:00

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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