SSL/TLS Certificate Lookup

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

lucebni.cz

SSL/TLS Certificate

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SSL/TLS Certificate for lucebni.cz

Valid
Issued by (CA)
Let's Encrypt
Subject
lucebni.cz
Valid from
May 23, 2026
Valid until
Aug 21, 2026 (31 days remaining)
Public key
EC 256-bit
Serial
059CFEA8A837C0825148B3B7222F001C8DBE
SHA-256 fingerprint
27:39:AE:EA:9E:85:B8:08:42:2B:45:18:5D:88:A4:6E:EE:9A:D5:59:91:3D:04:5E:7E:8C:27:4B:09:AA:16:77
Chain
E7 → ISRG Root X1
Subject Alternative Names (1)
lucebni.cz

Certificate Authority Authorization (CAA)

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