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 ptlt.com.tw

Valid
Issued by (CA)
Sectigo Limited
Subject
ptlt.com.tw
Valid from
Jan 13, 2026
Valid until
Jan 14, 2027 (177 days remaining)
Public key
RSA 2048-bit
Serial
69EE7A2A6312EBF3FD3116369D37FB79
SHA-256 fingerprint
52:BC:6F:65:F4:10:41:66:2E:0A:93:BA:72:27:62:26:1E:01:3F:8D:88:CA:B2:D8:23:FF:B4:CB:C2:32:09:74
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
ptlt.com.tw, www.ptlt.com.tw

Certificate Authority Authorization (CAA)

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