Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

11 hosts · 248 ms

Download CSV
HostCertsFirst seenLast seen
seo-kueche.de 5 2026-05-22 2026-09-26
sub.seo-kueche.de 3 2026-06-20 2026-09-14
karriere.seo-kueche.de 5 2026-04-30 2026-09-07
messe.seo-kueche.de 8 2026-05-28 2026-09-23
portal.seo-kueche.de 9 2026-06-07 2026-10-04
whitelabel.seo-kueche.de 2 2025-10-25 2026-09-25
plugin.seo-kueche.de 5 2026-05-03 2026-08-31
webinar.seo-kueche.de 9 2026-05-27 2026-09-22
whitepaper.seo-kueche.de 14 2026-05-28 2026-09-24
pview.seo-kueche.de 3 2026-06-20 2026-09-14
www.seo-kueche.de 5 2026-05-22 2026-09-26

Programmatic access: API GET /v1/hosts/seo-kueche.de (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/seo-kueche.de.