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 one-system.fr

Valid
Issued by (CA)
Gandi SAS
Subject
*.one-system.fr
Valid from
Nov 13, 2025
Valid until
Dec 14, 2026 (102 days remaining)
Public key
RSA 2048-bit
Serial
0B98AF321DF307FB9ED95E01C1E6B43F
SHA-256 fingerprint
4E:5B:AF:E1:64:5F:6F:AD:76:8D:8E:DD:0D:97:4C:ED:0A:43:97:50:61:C1:5A:B7:45:65:B0:34:37:1D:C5:2E
Chain
GandiCert → DigiCert Global Root G2
Subject Alternative Names (2)
*.one-system.fr, one-system.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 Aug 10, 2026.

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Uptime

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DNS changes

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TLS certificate

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