SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
oto-chair.fr
SSL/TLS Certificate
SSL/TLS Certificate for oto-chair.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- oto-chair.fr
- Valid from
- Sep 15, 2026
- Valid until
- Dec 14, 2026 (40 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0557EE47F7E6DE1FB11C4022929A41EC7A2C
- SHA-256 fingerprint
- 0C:7F:1E:90:66:82:3C:55:F6:C1:58:87:D8:3D:09:C3:5C:01:70:07:10:5B:2B:1A:8C:A8:BA:C9:CC:F4:EE:49
- Chain
- YR2 → 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 Aug 11, 2026.
Never get surprised by oto-chair.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch oto-chair.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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.