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.

16 hosts · 244 ms

Download CSV
HostCertsFirst seenLast seen
drgkitzmann-akademie.de 15 2026-04-29 2026-09-14
*.drgkitzmann-akademie.de 9 2026-04-29 2026-09-14
data.drgkitzmann-akademie.de 5 2026-05-17 2026-09-14
www.data.drgkitzmann-akademie.de 5 2026-05-17 2026-09-14
sbc.drgkitzmann-akademie.de 1 2026-06-20 2026-06-20
www.sbc.drgkitzmann-akademie.de 1 2026-06-20 2026-06-20
staging.drgkitzmann-akademie.de 4 2026-06-11 2026-10-09
www.staging.drgkitzmann-akademie.de 4 2026-06-11 2026-10-09
monitoring.drgkitzmann-akademie.de 5 2026-06-24 2026-08-24
www.monitoring.drgkitzmann-akademie.de 5 2026-06-24 2026-08-24
health.drgkitzmann-akademie.de 2 2026-06-24 2026-06-24
www.health.drgkitzmann-akademie.de 2 2026-06-24 2026-06-24
crm.drgkitzmann-akademie.de 1 2026-02-19 2026-02-19
www.crm.drgkitzmann-akademie.de 1 2026-02-19 2026-02-19
dat.drgkitzmann-akademie.de 4 2026-06-06 2026-10-04
www.drgkitzmann-akademie.de 6 2026-05-14 2026-09-11

Programmatic access: API GET /v1/hosts/drgkitzmann-akademie.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/drgkitzmann-akademie.de.