SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
foncier-data.com
SSL/TLS Certificate
SSL/TLS Certificate for foncier-data.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- foncier-data.com
- Valid from
- Jun 18, 2026
- Valid until
- Sep 16, 2026 (37 days remaining)
- Public key
- EC 256-bit
- Serial
- 055374BE3E1E4B2D44A033832C6141677C69
- SHA-256 fingerprint
- 15:FB:39:9B:69:0A:26:70:B8:C1:23:86:53:07:FF:26:05:9B:CB:AF:97:3D:CD:5A:9B:10:13:57:62:87:D4:8C
- Chain
- YE1 → 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.
This certificate has been served since Aug 8, 2026.
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Uptime
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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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