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 oprax.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- oprax.fr
- Valid from
- Oct 3, 2026
- Valid until
- Jan 1, 2027 (86 days remaining)
- Public key
- EC 256-bit
- Serial
- 06BEFC9D2BE94F99B4285C8800CF8F0CEAF3
- SHA-256 fingerprint
- 08:3F:02:BB:C1:AF:80:C2:C1:ED:D6:4B:42:3B:DB:2E:94:B0:26:79:BF:85:C3:7F:B4:71:90:81:6D:34:F5:81
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
This certificate has been served since Sep 7, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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