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 os-koper.si

Untrusted chain
Issued by (CA)
Hellenic Academic and Research Institutions CA
Subject
os-koper.si
Valid from
Jan 21, 2026
Valid until
Jan 21, 2027 (94 days remaining)
Public key
RSA 2048-bit
Serial
41248B18DEC76D9B33DADCCD5B712EF4
SHA-256 fingerprint
88:DE:CB:29:52:4C:B6:3D:3E:6D:21:14:63:06:27:84:2B:82:B7:9F:FD:41:36:20:3A:56:FE:BA:12:BC:D4:F6
Chain
—
Subject Alternative Names (2)
os-koper.si, www.os-koper.si

Certificate Authority Authorization (CAA)

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Uptime

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TLS certificate

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