SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
seine-arche.fr
SSL/TLS Certificate
SSL/TLS Certificate for seine-arche.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- seine-arche.fr
- Valid from
- Oct 14, 2026
- Valid until
- Jan 12, 2027 (86 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05EAE20A955C6662F39B29B4F4952FAB7179
- SHA-256 fingerprint
- 4B:1E:AC:23:61:97:E2:A9:24:EB:83:5D:08:33:AF:D6:EA:B8:FA:C8:64:D9:A1:38:6C:5A:4B:BC:7B:A5:1C:6C
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 4, 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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