SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

prepa-architecture.fr

SSL/TLS Certificate

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SSL/TLS Certificate for prepa-architecture.fr

Valid
Issued by (CA)
Let's Encrypt
Subject
prepa-architecture.fr
Valid from
Jun 18, 2026
Valid until
Sep 16, 2026 (56 days remaining)
Public key
RSA 2048-bit
Serial
0544AD681D9FA51B18B6111AB099705510F7
SHA-256 fingerprint
0C:1B:28:C0:C4:2D:58:7F:79:60:D4:AE:DE:58:0A:45:C6:D3:30:BF:FB:52:06:FE:3E:30:33:5E:BB:B3:C9:CC
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
prepa-architecture.fr, www.prepa-architecture.fr

Certificate Authority Authorization (CAA)

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