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 gemeinde-aach.de

Valid
Issued by (CA)
Sectigo Limited
Subject
www.gemeinde-aach.de
Valid from
Jan 21, 2026
Valid until
Jan 21, 2027 (131 days remaining)
Public key
RSA 4096-bit
Serial
77F9BEE7ABF2D64D59C3E20BA0BFCA89
SHA-256 fingerprint
72:D9:3A:D9:2B:8A:6D:92:22:18:9A:4B:00:E1:79:06:42:A0:0B:9F:05:B1:4F:A4:B6:47:73:30:D2:C7:CC:9E
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
gemeinde-aach.de, www.gemeinde-aach.de

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 4, 2026.

Never get surprised by gemeinde-aach.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gemeinde-aach.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.