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
Subject Alternative Names (1)
guidi.ch

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.