SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
prepa-excelys.fr
SSL/TLS Certificate
SSL/TLS Certificate for prepa-excelys.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- prepa-excelys.fr
- Valid from
- Sep 1, 2026
- Valid until
- Nov 30, 2026 (38 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05B33EB8CF832F7A437B9189740012A67994
- SHA-256 fingerprint
- 84:C8:E7:55:13:D7:3D:69:44:17:83:C4:B8:6F:33:77:1B:C9:2E:BD:13:7E:B6:DA:CB:03:62:9B:B4:D1:29:06
- Chain
- YR1 → Root YR → 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 Sep 9, 2026.
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Uptime
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DNS changes
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TLS certificate
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