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.

3 hosts · 212 ms

Download CSV
HostCertsFirst seenLast seen
te.ambria.de 3 2025-12-29 2026-08-28
wasp.ambria.de 3 2026-06-10 2026-09-25
tp.ambria.de 2 2026-01-20 2026-08-28

Programmatic access: API GET /v1/hosts/ambria.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/ambria.de.