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 kapsa.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- kapsa.cz
- Valid from
- May 19, 2026
- Valid until
- Aug 17, 2026 (27 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05B1D8451C3E73E7E996D8097B907ED235C6
- SHA-256 fingerprint
- 8B:2D:9F:5F:D1:79:A2:E5:FE:DA:C0:EF:FA:71:45:4F:21:90:C9:79:2B:0F:D7:E2:4C:A4:9D:3E:CF:92:97:BC
- Chain
- R13 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.