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 yak-50.de

Valid
Issued by (CA)
Let's Encrypt
Subject
yak-50.de
Valid from
Jun 7, 2026
Valid until
Sep 5, 2026 (37 days remaining)
Public key
EC 384-bit
Serial
058AD704932DB65C7B49217FE982EBD245E3
SHA-256 fingerprint
C3:A9:FA:E6:B3:F9:A9:B0:3B:97:D0:D8:6E:12:04:B0:81:3B:B1:C0:BD:46:8E:84:DF:CE:17:A0:83:02:33:A8
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
*.yak-50.de, yak-50.de

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by yak-50.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch yak-50.de 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.