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 fachsprache-deutsch.org

Valid
Issued by (CA)
Let's Encrypt
Subject
fachsprache-deutsch.org
Valid from
Aug 29, 2026
Valid until
Nov 27, 2026 (65 days remaining)
Public key
RSA 2048-bit
Serial
067690D202E05D1517B88E5384B66CF58588
SHA-256 fingerprint
8B:47:41:DF:01:8A:AF:72:05:FB:85:21:B9:7A:F6:BC:E2:85:0A:DA:78:4D:F6:56:CA:84:36:CD:42:78:CF:48
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
fachsprache-deutsch.org, www.fachsprache-deutsch.org

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 Sep 11, 2026.

Never get surprised by fachsprache-deutsch.org's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch fachsprache-deutsch.org 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.

Monitor this certificate free

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