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 cls21.fr

Valid
Issued by (CA)
Let's Encrypt
Subject
cls21.fr
Valid from
Jul 13, 2026
Valid until
Oct 11, 2026 (81 days remaining)
Public key
EC 256-bit
Serial
054760A3E2F22FE1725A06C596CF785AC721
SHA-256 fingerprint
2B:A9:03:7F:89:E0:33:1A:FC:E3:5A:32:EF:92:1B:D9:6C:A7:C4:86:2D:AF:98:84:6E:05:C2:B7:94:29:44:20
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
cls21.fr

Certificate Authority Authorization (CAA)

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