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 fstb.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- fstb.ch
- Valid from
- May 16, 2026
- Valid until
- Aug 14, 2026 (24 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0633A27562E4B1F165EC47263F75AF552D0C
- SHA-256 fingerprint
- 24:C1:C3:01:71:AB:83:1E:D3:CA:9B:36:EE:9A:FA:FD:13:A0:91:1D:2C:44:B2:B8:4F:5D:53:83:AA:0F:F9:73
- Chain
- R13 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.