Find every subdomain
of a domain.

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

19 hosts · 312 ms

HostCertsFirst seenLast seenDNS
katespade.de 7 2025-08-08 2026-08-19 ok
*.katespade.de 9 2025-08-08 2026-08-19 —
staging1.katespade.de 14 2026-04-14 2026-08-11 ok
development1.katespade.de 14 2026-06-01 2026-09-27 ok
tpr-ss-analytics-de.katespade.de 4 2026-06-05 2026-09-20 ok
queue.katespade.de 1 2026-07-20 2026-07-20 ok
prestaging.katespade.de 18 2026-06-01 2026-09-27 ok
idsfq.katespade.de 12 2026-06-07 2026-10-04 ok
d.qa.emeu.katespade.de 10 2026-05-16 2026-09-11 ok
e.qa.emeu.katespade.de 14 2026-05-16 2026-09-11 ok
se.qa.emeu.katespade.de 10 2026-05-16 2026-09-11 ok
mg.qa.emeu.katespade.de 5 2026-05-19 2026-09-16 ok
d.mk.emeu.katespade.de 12 2026-05-16 2026-09-11 ok
e.mk.emeu.katespade.de 16 2026-05-16 2026-09-12 ok
se.mk.emeu.katespade.de 14 2026-05-16 2026-09-11 ok
mg.mk.emeu.katespade.de 5 2026-05-19 2026-09-16 ok
forms.mk.emeu.katespade.de 11 2026-05-21 2026-09-16 ok
mg.tx.emeu.katespade.de 5 2026-05-19 2026-09-16 ok
www.katespade.de 10 2026-05-17 2026-09-12 ok

Programmatic access, with DNS A records: API GET /v1/hosts/katespade.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/katespade.de.