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 guenard-sebastien.fr

Valid
Issued by (CA)
Let's Encrypt
Subject
guenard-sebastien.fr
Valid from
Jun 21, 2026
Valid until
Sep 19, 2026 (47 days remaining)
Public key
RSA 2048-bit
Serial
0580931689E0FECD0B557489F341CF37044E
SHA-256 fingerprint
E3:75:73:0A:76:1B:4B:6E:86:E3:01:2A:BA:AD:61:64:B7:89:7F:70:9F:E4:A7:22:E1:F8:A0:C0:F6:03:BA:72
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
guenard-sebastien.fr, www.guenard-sebastien.fr

Certificate Authority Authorization (CAA)

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

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Uptime

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TLS certificate

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