SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for free-dom.at

Valid
Issued by (CA)
Let's Encrypt
Subject
free-dom.at
Valid from
Sep 8, 2026
Valid until
Dec 7, 2026 (45 days remaining)
Public key
EC 384-bit
Serial
0528846C09E38E74CEC5F87E11CF1F516854
SHA-256 fingerprint
03:89:BF:F8:73:EC:71:EE:63:D5:CE:DB:D6:90:5F:51:6B:D6:98:8B:F0:E9:EC:ED:AF:66:D3:A3:A1:93:A6:56
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
free-dom.at, www.free-dom.at

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 18, 2026.

Never get surprised by free-dom.at's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch free-dom.at continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.