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 hecon-umrichter.de

Expired
Issued by (CA)
Sectigo Limited
Subject
www.hecon-umrichter.de
Valid from
Jan 4, 2025
Valid until
Jan 19, 2026 (expired 191 days ago)
Public key
RSA 2048-bit
Serial
A0AE6C8D0D1DBC66B831F86671839AA6
SHA-256 fingerprint
0C:BE:F7:19:8C:1D:9F:D1:C3:17:2F:CD:7D:3E:0F:33:66:05:C7:0A:0B:A7:76:45:2E:54:D9:1F:79:9A:2C:84
Chain
Sectigo RSA Domain Validation Secure Server CA → USERTrust RSA Certification Authority
Subject Alternative Names (2)
hecon-umrichter.de, www.hecon-umrichter.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 Jul 27, 2026.

Never get surprised by hecon-umrichter.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch hecon-umrichter.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.