SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
oser-association.fr
SSL/TLS Certificate
SSL/TLS Certificate for oser-association.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- oser-association.fr
- Valid from
- Sep 12, 2026
- Valid until
- Dec 11, 2026 (86 days remaining)
- Public key
- EC 256-bit
- Serial
- 0683BC1EE313E3883A9FD458493035902F1E
- SHA-256 fingerprint
- 0A:71:9D:B5:70:6F:BF:71:78:C5:91:89:26:8A:4A:8F:CE:9F:66:5B:C7:11:C9:62:A0:14:DF:FE:4A:26:D1:CA
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
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 5, 2026.
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Uptime
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DNS changes
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TLS certificate
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