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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

rtcomm.ru · 195.161.13.245:443

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=*.rtcomm.ru
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R46 DV TLS CA 2025
Valid from
2026-07-29T09:49:44+00:00
Expires
2027-02-13T09:49:44+00:00
Days remaining
143
Serial (hex)
132EE7215A25E4B1D7C325F3
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.rtcomm.ru, DNS:rtcomm.ru

SHA-256 fingerprint

54:42:2F:82:0F:F8:9B:E6:8B:0E:6D:62:F1:FA:18:24:AA:60:6A:39:7C:33:A3:79:23:1B:FC:04:67:09:E2:D4
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr46dvtlsca2025.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr46dvtlsca2025
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr46dvtlsca2025.crl
subjectAltName
DNS:*.rtcomm.ru, DNS:rtcomm.ru
authorityKeyIdentifier
08:69:E9:7F:A5:AB:F4:C3:61:E5:CD:8E:7B:47:EF:8B:29:64:8D:EC
extendedKeyUsage
TLS Web Server Authentication
subjectKeyIdentifier
80:B5:86:A1:91:6E:41:2F:6D:15:16:E1:17:C5:AE:50:73:78:EC:7E
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Jul 29 09:49:48.484 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:78:2B:A2:9E:35:C9:21:BA:16:77:2F:70: D2:D5:64:01:6C:ED:12:B7:84:FC:92:82:C5:16:79:48: 1A:78:CD:2D:02:21:00:BF:76:45:80:34:08:7E:1E:A9: 25:E5:DF:44:FF:F4:88:14:5E:FB:67:09:00:45:6C:88: 39:B9:8D:1F:6D:26:91 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 : Jul 29 09:49:47.831 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:DC:E3:84:DD:6C:35:F8:53:27:13:44: E9:FD:14:9A:32:72:90:F3:4F:E9:0C:93:2D:A2:E1:98: 68:F5:57:A4:36:02:21:00:9A:74:68:1B:80:35:5D:60: 1D:85:DB:4A:B4:C0:77:5D:5D:B3:E5:D5:3B:F9:34:AA: 49:9E:00:DE:CA:AB:3F:63 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Jul 29 09:49:47.809 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:28:20:3A:A0:70:A0:2A:D7:0D:FB:30:A9: 08:D3:11:C3:72:B3:56:E2:AD:11:0D:9F:AA:CD:24:D6: E8:E5:3D:AA:02:21:00:F7:42:D6:F1:E9:62:35:07:10: BC:57:50:DD:4A:F2:A8:BF:B3:A7:AA:AF:DA:1C:42:37: 83:92:4A:F9:A2:B1:E2
-----BEGIN CERTIFICATE-----
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C2iqfA==
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-23T05:43:09+00:00

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

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