SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for gigatek-inc.com

Hostname mismatch
Issued by (CA)
ZeroSSL GmbH
Subject
*.gigatms.com.tw
Valid from
Apr 15, 2026
Valid until
Oct 30, 2026 (101 days remaining)
Public key
RSA 4096-bit
Serial
7B04C0B796939C903BC1FBA9C060ADA2
SHA-256 fingerprint
A0:F5:81:7E:04:3B:5E:D1:66:9B:30:78:8B:C6:2C:57:93:23:91:B7:E5:59:06:15:34:A5:AF:8D:8B:B9:DE:2D
Chain
ZeroSSL RSA DV SSL CA 2 → Sectigo Public Server Authentication Root R46
Subject Alternative Names (2)
*.gigatms.com.tw, gigatms.com.tw

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.