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.

5 hosts · 221 ms

HostCertsFirst seenLast seen
kaufland-marktplatz.de 6 2026-04-14 2026-09-22
email.kaufland-marktplatz.de 5 2026-04-22 2026-08-20
x.newsletter.kaufland-marktplatz.de 5 2026-05-23 2026-09-23
mta-sts.kaufland-marktplatz.de 5 2026-05-26 2026-09-21
www.kaufland-marktplatz.de 3 2026-05-10 2026-08-24

Programmatic access: API GET /v1/hosts/kaufland-marktplatz.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/kaufland-marktplatz.de.