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.

12 hosts · 252 ms

HostCertsFirst seenLast seenDNS
ikea.de 14 2026-05-20 2026-09-28 ok
*.ikea.de 1 2026-09-28 2026-09-28 —
data.e.news.email.ikea.de 2 2026-06-30 2026-06-30 ok
cdn.e.news.email.ikea.de 27 2026-06-26 2026-07-16 ok
cloud.hej.news.email.ikea.de 1 2026-05-23 2026-05-23 ok
image.hej.news.email.ikea.de 3 2025-09-02 2026-08-04 ok
click.hej.news.email.ikea.de 1 2026-05-22 2026-05-22 ok
view.hej.news.email.ikea.de 1 2026-05-21 2026-05-21 ok
go.ikea.de 4 2026-06-04 2026-08-02 ok
appointments.ikea.de 2 2025-08-19 2026-08-19 ok
www.appointments.ikea.de 2 2025-08-19 2026-08-19 nxdomain
www.ikea.de 10 2026-04-13 2026-08-10 ok

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