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 dofi.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.dofi.cz
- Valid from
- Jun 15, 2026
- Valid until
- Sep 13, 2026 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05F774D735A28BFBDABADD82A4152FE5531A
- SHA-256 fingerprint
- A6:E6:6C:93:92:A7:BE:67:1B:B2:E3:62:48:E2:0E:4B:9D:9C:F8:1C:CF:BE:B7:28:53:16:FF:1D:CC:0F:54:78
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.