SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
alfa-safety.fr
SSL/TLS Certificate
SSL/TLS Certificate for alfa-safety.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- alfa-safety.fr
- Valid from
- Sep 26, 2026
- Valid until
- Dec 25, 2026 (49 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05D21A80745AC63623AAF081DB85B7A0C2F6
- SHA-256 fingerprint
- 2C:B9:08:F2:9D:4E:73:4F:6A:2D:5F:63:C2:08:AD:14:62:F8:38:CA:0B:7A:CC:36:21:C8:85:E3:72:53:8A:D6
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 30, 2026.
Never get surprised by alfa-safety.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch alfa-safety.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.