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

TLSv1.2

hketc.com · 175.45.21.102:443

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=www.hketc.com
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2025-12-20T00:00:00+00:00
Expires
2026-12-22T23:59:59+00:00
Days remaining
65
Serial (hex)
1ECBA8D058753823C1606AE85C55006A
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:www.hketc.com, DNS:hketc.com

SHA-256 fingerprint

50:E3:E2:97:A5:8C:13:5C:9E:C9:78:3C:E8:D1:99:5D:58:5D:36:8A:C8:1F:23:9F:8E:51:18:9C:B2:EE:B0:0E
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
57:B9:34:79:C3:20:35:2A:28:B2:EC:52:A6:6B:0B:78:D7:95:A2:86
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client 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:www.hketc.com, DNS:hketc.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 20 17:44:16.435 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0F:40:0D:A9:5C:E0:40:20:E1:C0:0B:71: 80:FE:75:29:ED:31:C0:D9:20:0A:67:B6:75:52:61:8A: 1A:23:92:71:02:20:41:CD:CD:AD:28:C7:06:E8:98:EC: FE:09:D3:8F:DC:E3:8C:34:86:91:EB:2B:75:75:5F:D7: EB:1B:63:56:93:ED 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 20 17:44:16.649 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:99:74:30:6A:AB:04:48:98:F8:9C:8F: 39:EC:6A:1C:3A:5E:F2:46:F4:77:23:4D:6C:4D:61:F6: EA:58:90:87:C6:02:20:7E:9F:CD:D8:B6:93:65:47:BB: 0A:6E:FE:EA:47:D1:0B:AA:F6:93:DB:8B:09:93:1D:F1: B5:41:7B:0D:01:6E:86 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Dec 20 17:44:17.186 2025 GMT Extensions: 00:00:05:00:00:9C:DE:8F Signature : ecdsa-with-SHA256 30:44:02:20:25:E6:B6:F6:B2:0E:D3:F3:EA:27:C0:4E: 86:F7:8A:FC:0A:44:16:40:A7:A8:E5:EF:D5:B3:8B:17: E1:90:AB:41:02:20:01:BE:6D:14:A5:32:D6:5B:46:E6: 8A:4F:1F:01:0A:2C:66:34:4B:27:FC:4C:06:B4:61:6E: EC:84:72:BE:83:71
-----BEGIN CERTIFICATE-----
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Ml14o0RcNZE=
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-10-18T03:56:01+00:00

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

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