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

ns2.hlc.edu.tw · 210.240.39.59:443

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
The certificate has expired.

Certificate verification failed

Subject
C=US ST=California L=Sunnyvale O=Infoblox OU=Engineering CN=ns2.hlc.edu.tw
Issuer
C=US ST=California L=Sunnyvale O=Infoblox OU=Engineering CN=ns2.hlc.edu.tw
Valid from
2024-09-23T07:09:24+00:00
Expires
2025-09-23T07:09:24+00:00
Days remaining
-411
Serial (hex)
0F61B3758517A8E590B14D07E624AFF2
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

IP Address:210.240.39.59, IP Address:2001:288:B200:1:0:0:0:59, DNS:ns2.hlc.edu.tw

SHA-256 fingerprint

AA:1E:EC:45:5D:B1:89:A8:25:C2:8D:57:DB:FD:7E:E1:A5:A6:91:10:93:0C:68:D3:CA:7B:0A:E6:E4:1C:0E:04
Certificate extensions & PEM
subjectAltName
IP Address:210.240.39.59, IP Address:2001:288:B200:1:0:0:0:59, DNS:ns2.hlc.edu.tw
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-08T05:00:30+00:00

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

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