SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kozni-lekarka.cz
SSL/TLS Certificate
SSL/TLS Certificate for kozni-lekarka.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- kozni-lekarka.cz
- Valid from
- Sep 28, 2026
- Valid until
- Dec 27, 2026 (43 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06750049BE0ADD593554671EBE7286D8C0A4
- SHA-256 fingerprint
- A5:DB:FB:EC:BE:30:B8:CB:21:DC:3C:74:20:A9:7D:EA:74:A2:4D:00:AD:D4:3D:4F:D0:62:1F:CC:EF:F8:07:23
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 13, 2026.
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TLS certificate
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