SSL/TLS Certificate Lookup

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

cltech.co.kr

SSL/TLS Certificate

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SSL/TLS Certificate for cltech.co.kr

Hostname mismatch
Issued by (CA)
Sectigo Limited
Subject
*.mailplug.com
Valid from
Feb 9, 2026
Valid until
Mar 6, 2027 (228 days remaining)
Public key
RSA 2048-bit
Serial
D80C75F12405252BB2510BD9236B901F
SHA-256 fingerprint
48:C8:48:F7:8A:BD:EC:F8:4D:7B:3A:43:2B:6A:64:BE:9C:82:A1:09:08:47:7E:AF:A4:11:FB:4A:7A:8A:D5:68
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
*.mailplug.com, mailplug.com

Certificate Authority Authorization (CAA)

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