SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ddec-alsace.fr
SSL/TLS Certificate
SSL/TLS Certificate for ddec-alsace.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- enseignement-catholique-alsace.fr
- Valid from
- Oct 8, 2026
- Valid until
- Jan 6, 2027 (77 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 053363027408E2787CB28631A1F6813E8273
- SHA-256 fingerprint
- F3:97:54:8E:1F:89:7B:65:97:C5:CA:F7:C3:6D:AB:59:40:84:62:43:54:01:A6:3F:B9:DA:80:E9:42:FA:F4:CD
- 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.
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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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