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

net-chinese.com.tw · 8.233.58.192:443

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=*.net-chinese.com.tw
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2026-02-23T00:00:00+00:00
Expires
2027-03-26T23:59:59+00:00
Days remaining
138
Serial (hex)
B6E75E306B1C88322E37751B812665BD
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.net-chinese.com.tw, DNS:net-chinese.com.tw

SHA-256 fingerprint

D7:17:1D:44:F9:D8:6F:9F:B0:C3:CC:6E:62:7E:71:79:B7:D9:DC:83:73:13:FF:F8:A9:5F:1A:C8:72:52:81:9E
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
DD:6B:73:F4:3F:42:C8:26:E2:83:94:92:B8:7C:3F:47:3B:2F:4D:C8
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:*.net-chinese.com.tw, DNS:net-chinese.com.tw
ct_precert_scts
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 : Feb 23 08:03:56.244 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E3:31:CB:75:81:D1:6D:53:41:63:4E: 48:C8:C1:80:98:BD:C8:DF:BA:6D:4E:B6:81:C7:3E:90: 25:4C:4D:AF:94:02:20:56:6B:14:14:C4:21:68:99:B0: 61:BC:37:7A:1C:15:91:47:0A:07:68:4C:1E:BA:58:AC: 63:6B:D9:AF:AF:B8:F4 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 : Feb 23 08:03:56.774 2026 GMT Extensions: 00:00:05:00:02:ED:63:18 Signature : ecdsa-with-SHA256 30:45:02:21:00:FD:1F:73:41:4B:17:EF:63:DC:25:F5: 63:D3:59:2B:7F:E1:C5:E3:3A:A7:AD:B7:8B:13:26:14: 26:3B:85:CB:AC:02:20:4A:6C:6A:2D:06:2A:4E:B0:57: 73:08:85:CB:89:E9:63:A7:01:11:E0:AB:BB:50:0D:AD: B6:A3:29:06:F8:69:6A Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Feb 23 08:03:56.634 2026 GMT Extensions: 00:00:05:00:00:2C:34:5B Signature : ecdsa-with-SHA256 30:44:02:20:2A:9D:D9:EA:28:3F:49:31:37:A9:44:39: C9:4D:C8:00:24:39:C3:53:F8:64:88:25:C9:F1:48:95: F7:6D:58:98:02:20:43:6C:34:98:CD:5D:86:68:D6:C0: F8:26:57:96:3A:4A:AE:6A:F0:DB:A0:84:6C:14:F4:F4: CB:83:C6:F7:AA:A0
-----BEGIN CERTIFICATE-----
MIIGmzCCBQOgAwIBAgIRALbnXjBrHIgyLjd1G4EmZb0wDQYJKoZIhvcNAQELBQAw
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0an1lkZ9hoBC6Tt8UyNd
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-08T01:21:26+00:00

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

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