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 dan-aikido.de

Valid
Issued by (CA)
Sectigo Limited
Subject
dan-aikido.de
Valid from
Mar 15, 2026
Valid until
Sep 29, 2026 (62 days remaining)
Public key
RSA 2048-bit
Serial
AC73BAC67EEC1DF7A4F355A06C9F9F5F
SHA-256 fingerprint
6D:83:81:64:D0:02:C2:BB:0C:4B:27:79:6C:5D:95:51:B6:AF:EC:28:55:35:C9:85:37:7F:9B:62:BC:04:27:A3
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Subject Alternative Names (1)
dan-aikido.de

Certificate Authority Authorization (CAA)

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

Never get surprised by dan-aikido.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch dan-aikido.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.