SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
initiative-nantes.fr
SSL/TLS Certificate
SSL/TLS Certificate for initiative-nantes.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- initiative-nantes.fr
- Valid from
- Oct 9, 2026
- Valid until
- Jan 7, 2027 (55 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 059598DC56439496D6C4E59EAFD9E223F7F3
- SHA-256 fingerprint
- 50:7A:61:A8:41:F6:51:F0:19:74:1A:44:6B:3A:94:04:8C:EF:5D:64:62:26:9C:82:78:B3:FA:D2:84:8F:C3:43
- 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 Aug 25, 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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