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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

viscofan.com · 132.164.140.147:443

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=viscofan.com
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2025-12-05T00:00:00+00:00
Expires
2026-12-20T23:59:59+00:00
Days remaining
49
Serial (hex)
3C2D35BCE70E218BB267B7ABA77EDF85
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:viscofan.com, DNS:www.viscofan.com

SHA-256 fingerprint

90:DF:81:A8:2B:7A:17:9C:9E:F8:DB:78:69:D2:1F:04:8B:E1:78:0D:AE:B7:6F:87:7F:32:86:A7:6A:69:A6:3F
Certificate extensions & PEM
authorityKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
subjectKeyIdentifier
2B:0D:1B:A2:F4:C9:1C:C5:6D:65:38:DD:C8:F2:16:FD:86:CB:0C:01
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCADVR36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:viscofan.com, DNS:www.viscofan.com
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Dec 5 14:07:10.844 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6D:2A:6D:B7:99:2F:67:BA:40:02:D1:31: 1B:81:BA:AE:14:24:AA:E2:C0:7B:ED:C4:4D:B6:58:2E: 02:18:07:7C:02:21:00:D0:70:28:78:7D:B4:B3:65:BD: 54:AB:26:11:D2:3E:CD:E5:2E:66:FE:AA:BC:2D:3E:B1: 5F:92:9C:D5:51:87:D0 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Dec 5 14:07:11.041 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:36:0C:A1:07:30:B0:23:C1:A3:D5:F4:B8: 27:8F:66:F2:74:7A:86:3B:05:F3:C1:69:04:E0:D4:F5: 5F:24:07:87:02:20:1A:48:B0:05:41:78:0F:05:83:4F: 42:51:97:9E:74:72:E9:6B:E4:71:AD:25:58:9C:D2:D3: E9:9D:81:20:BF:24 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 : Dec 5 14:37:59.717 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:05:98:A3:74:5A:68:A4:D5:6E:1E:3F:6C: 20:F3:6E:9E:07:EF:4F:89:70:D0:12:9D:81:1C:13:06: C2:B6:E4:EF:02:21:00:C3:15:55:F5:E5:86:FD:07:2F: 78:F3:D3:5C:EA:67:3C:1F:01:48:AE:D9:73:7D:96:D5: 3B:C4:CD:46:8B:09:ED
-----BEGIN CERTIFICATE-----
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r3ccQIj6dhFIVdS6AsTdmhl4fqiTrMQeGxHk9Q==
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-01T23:10:52+00:00

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

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