SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sos-excel.fr
SSL/TLS Certificate
SSL/TLS Certificate for sos-excel.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sos-excel.fr
- Valid from
- Nov 2, 2026
- Valid until
- Jan 31, 2027 (80 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 052D1A892A501E4CAD29FEB40A4535711E1E
- SHA-256 fingerprint
- FD:61:D3:52:EB:53:BD:79:65:5D:57:9E:A6:58:F5:0B:51:69:51:0F:E7:3D:E7:BC:64:54:56:F7:59:73:88:FF
- 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 29, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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