SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
c-informatic.fr
SSL/TLS Certificate
SSL/TLS Certificate for c-informatic.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- c-informatic.fr
- Valid from
- Oct 4, 2026
- Valid until
- Jan 2, 2027 (88 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E66A9501158BAA25D7416E100E2F709270
- SHA-256 fingerprint
- CD:C2:12:B2:5D:79:D5:4B:0C:71:31:94:27:CF:1F:A7:E2:A1:50:A8:2C:AD:3A:9B:0B:83:94:30:29:9B:5B:B8
- 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 c-informatic.fr's certificate expiring
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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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