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 guidi.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- guidi.ch
- Valid from
- Jul 17, 2026
- Valid until
- Oct 15, 2026 (85 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E7E33D9AFA16C48DABF78360E4CD7F8388
- SHA-256 fingerprint
- 91:9D:C6:BA:5B:58:AB:72:03:5A:54:7C:F3:F9:63:49:F3:F7:CF:13:47:E5:BA:29:5E:96:7E:42:C6:1E:AD:3F
- 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.