SSL/TLS Certificate Lookup

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

lekon-tsk.cz

SSL/TLS Certificate

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SSL/TLS Certificate for lekon-tsk.cz

Valid
Issued by (CA)
Let's Encrypt
Subject
lekon-tsk.cz
Valid from
Jun 12, 2026
Valid until
Sep 10, 2026 (50 days remaining)
Public key
RSA 2048-bit
Serial
06D0CCD56C4FB46620F35080D45BC9F5B598
SHA-256 fingerprint
04:D6:54:94:08:2F:13:35:A7:72:BC:34:A5:2D:02:49:19:FB:31:EC:83:95:A6:12:43:47:28:4F:20:DC:F5:CA
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (4)
lekon-tsk.cz, lekontsk.cz, www.lekon-tsk.cz, www.lekontsk.cz

Certificate Authority Authorization (CAA)

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