SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gefac-btp.fr
SSL/TLS Certificate
SSL/TLS Certificate for gefac-btp.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gefac-btp.fr
- Valid from
- Jul 28, 2026
- Valid until
- Oct 26, 2026 (49 days remaining)
- Public key
- EC 256-bit
- Serial
- 050459878129123637FC08A97729CE28B01C
- SHA-256 fingerprint
- 91:C0:62:22:D7:92:7D:18:77:03:01:9C:F2:ED:CA:32:DD:39:75:52:DB:47:DB:EA:D2:FF:87:B3:74:47:31:1F
- 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.
Never get surprised by gefac-btp.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch gefac-btp.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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