SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ocr-expertise.fr
SSL/TLS Certificate
SSL/TLS Certificate for ocr-expertise.fr
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- ocr-expertise.fr
- Valid from
- Oct 7, 2025
- Valid until
- Oct 18, 2026 (37 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 566817B454E9DD0CB2D7734E150D091A
- SHA-256 fingerprint
- B6:D3:A1:42:90:B3:54:A9:B4:A2:44:22:F3:00:C8:C3:AD:98:16:94:97:DF:8D:7E:FC:69:F4:20:45:C7:5B:FB
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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