SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cid-it.fr
SSL/TLS Certificate
SSL/TLS Certificate for cid-it.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- cid-it.fr
- Valid from
- Sep 21, 2026
- Valid until
- Dec 20, 2026 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0568B7520C69DE864E919E3A4D04B10245AA
- SHA-256 fingerprint
- 26:CC:EC:B5:8B:26:7D:62:E5:38:80:1B:C7:92:6D:9B:C7:2B:4B:82:6F:E5:32:D3:73:C5:DB:B2:EF:9B:D6:E2
- 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 Oct 4, 2026.
Never get surprised by cid-it.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch cid-it.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.
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