SSL/TLS Certificate Lookup

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

csig.co.kr

SSL/TLS Certificate

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SSL/TLS Certificate for csig.co.kr

Hostname mismatch
Issued by (CA)
Sectigo Limited
Subject
gurc.or.kr
Valid from
Oct 13, 2025
Valid until
Nov 13, 2026 (115 days remaining)
Public key
RSA 2048-bit
Serial
911C733F7548982CC34A8F768923C7B5
SHA-256 fingerprint
BB:26:D8:1C:00:BB:9B:3C:ED:01:9B:3F:1D:CD:DE:27:79:C6:2D:91:71:CB:F0:10:55:D8:6E:4E:12:49:EE:97
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
gurc.or.kr, www.gurc.or.kr

Certificate Authority Authorization (CAA)

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