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 · 378 ms

HostCertsFirst seenLast seenDNS
yves-rocher.de 4 2025-10-28 2026-07-06 ok
*.yves-rocher.de 1 2025-11-16 2025-11-16 —
auth.yves-rocher.de 3 2025-10-28 2025-11-28 ok
m.yves-rocher.de 3 2025-10-28 2025-11-28 ok
sgtm.yves-rocher.de 3 2026-05-04 2026-08-18 ok
lp.yves-rocher.de 5 2026-04-25 2026-08-24 ok
cloud.news.yves-rocher.de 1 2026-01-25 2026-01-25 ok
image.news.yves-rocher.de 4 2026-01-05 2026-02-02 ok
click.news.yves-rocher.de 1 2026-01-25 2026-01-25 ok
view.news.yves-rocher.de 1 2026-01-25 2026-01-25 ok
www.yves-rocher.de 3 2025-10-28 2025-11-28 ok
gacilly.yves-rocher.de 2 2026-07-13 2026-09-03 ok

Programmatic access, with DNS A records: API GET /v1/hosts/yves-rocher.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/yves-rocher.de.