SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
on-light.fr
SSL/TLS Certificate
SSL/TLS Certificate for on-light.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- on-light.fr
- Valid from
- Aug 27, 2026
- Valid until
- Nov 25, 2026 (74 days remaining)
- Public key
- EC 256-bit
- Serial
- 06955FEE8AC123C980A59286878F196FFF4B
- SHA-256 fingerprint
- 97:46:5C:A8:6C:3A:F9:20:0F:1F:6B:B8:BC:73:B9:EB:5D:35:D3:12:B4:4F:C8:56:25:7D:5D:A4:A0:B1:D9:19
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by on-light.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch on-light.fr continuously, notifying you the moment anything moves across all three signals:
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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