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 perseus-web.fr

Valid
Issued by (CA)
Let's Encrypt
Subject
perseus-web.fr
Valid from
Sep 18, 2026
Valid until
Dec 17, 2026 (76 days remaining)
Public key
EC 256-bit
Serial
05374E7AABE8D3A63B50FE99367C621664F9
SHA-256 fingerprint
02:77:1B:72:B4:EF:8C:D1:01:D3:1D:DC:86:31:A2:3E:B2:B9:38:F9:D0:7A:3D:B8:E2:14:6A:9B:FE:CA:1D:45
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
*.perseus-web.fr, perseus-web.fr

Certificate Authority Authorization (CAA)

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

This certificate has been served since Sep 22, 2026.

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Uptime

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DNS changes

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TLS certificate

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