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 hes-kapp.de

Valid
Issued by (CA)
ZeroSSL GmbH
Subject
hes-kapp.de
Valid from
Oct 5, 2026
Valid until
Jan 3, 2027 (55 days remaining)
Public key
EC 256-bit
Serial
A848A68BC5E97EA2133919848E83FBA4
SHA-256 fingerprint
63:91:1A:FA:35:20:57:37:C8:E1:74:CD:52:72:24:F4:6C:3E:E9:30:AE:7A:18:9D:15:81:F9:3A:D4:EB:17:38
Chain
ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46
Subject Alternative Names (1)
hes-kapp.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 Aug 2, 2026.

Never get surprised by hes-kapp.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch hes-kapp.de continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.