SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cosne-electricite.fr
SSL/TLS Certificate
SSL/TLS Certificate for cosne-electricite.fr
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.cosne-electricite.fr
- Valid from
- Oct 25, 2025
- Valid until
- Nov 8, 2026 (108 days remaining)
- Public key
- RSA 2048-bit
- Serial
- BE20F57F6955DEEED5ACE9B6CCED3854
- SHA-256 fingerprint
- 9A:03:E0:58:F2:84:12:6E:B1:D5:61:F7:E6:FC:44:17:4B:AA:7D:36:4D:C5:8F:39:6E:13:EF:57:03:84:16:09
- 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
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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