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.

19 hosts · 242 ms

HostCertsFirst seenLast seen
da-direkt.de 39 2026-01-19 2026-10-09
*.da-direkt.de 86 2026-01-21 2026-10-05
omservice.da-direkt.de 87 2026-01-19 2026-10-05
*.customerportal.da-direkt.de 34 2026-01-21 2026-10-04
mail.da-direkt.de 2 2026-04-27 2026-10-03
*.mail.da-direkt.de 37 2026-01-19 2026-10-04
www.mail.da-direkt.de 2 2026-04-27 2026-10-03
newsroom.da-direkt.de 103 2026-01-19 2026-10-05
*.perso.da-direkt.de 35 2026-04-15 2026-10-05
kaufland-uat.da-direkt.de 19 2026-04-10 2026-10-08
www.kaufland-uat.da-direkt.de 1 2026-04-10 2026-04-10
helpdeskuat.da-direkt.de 50 2026-01-21 2026-10-05
sit.da-direkt.de 20 2026-04-10 2026-10-08
www.sit.da-direkt.de 1 2026-04-10 2026-04-10
test.da-direkt.de 29 2026-01-19 2026-10-08
media-test.da-direkt.de 1 2026-04-10 2026-04-10
www.test.da-direkt.de 1 2026-04-10 2026-04-10
www.da-direkt.de 39 2026-01-19 2026-10-09
zahnzusatz.da-direkt.de 87 2026-01-19 2026-10-05

Programmatic access: API GET /v1/hosts/da-direkt.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/da-direkt.de.