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.

6 hosts · 196 ms

HostCertsFirst seenLast seen
silkes-weinkeller.de 3 2025-08-26 2026-09-22
*.silkes-weinkeller.de 3 2025-08-26 2026-09-22
translink.silkes-weinkeller.de 4 2026-04-16 2026-08-14
swk-news.silkes-weinkeller.de 5 2026-05-30 2026-09-27
t.silkes-weinkeller.de 5 2026-05-24 2026-09-22
t-preview.silkes-weinkeller.de 5 2026-05-24 2026-09-22

Programmatic access: API GET /v1/hosts/silkes-weinkeller.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/silkes-weinkeller.de.