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 grudda-gudensberg.de

Valid
Issued by (CA)
Sectigo Limited
Subject
www.grudda-gudensberg.de
Valid from
Apr 13, 2026
Valid until
Oct 28, 2026 (97 days remaining)
Public key
RSA 2048-bit
Serial
76A33AF556FFD93FCF4D28C441B11537
SHA-256 fingerprint
DE:09:0B:E6:90:9E:B5:C8:51:C6:7E:17:D3:4B:8A:6C:8D:9E:4B:1E:46:78:EF:49:FF:60:15:D2:B6:BF:5F:D7
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
grudda-gudensberg.de, www.grudda-gudensberg.de

Certificate Authority Authorization (CAA)

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

Never get surprised by grudda-gudensberg.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch grudda-gudensberg.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.