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.

11 hosts · 230 ms

HostCertsFirst seenLast seenDNS
yves-rocher.at 4 2025-10-28 2026-07-06 ok
*.yves-rocher.at 1 2025-11-16 2025-11-16 —
auth.yves-rocher.at 3 2025-10-28 2025-11-28 ok
m.yves-rocher.at 3 2025-10-28 2025-11-28 ok
sgtm.yves-rocher.at 4 2026-04-22 2026-09-30 ok
lp.yves-rocher.at 5 2026-05-05 2026-09-02 ok
cloud.news.yves-rocher.at 3 2026-03-22 2026-08-23 ok
image.news.yves-rocher.at 2 2026-02-02 2026-02-07 ok
click.news.yves-rocher.at 3 2026-03-22 2026-08-24 ok
view.news.yves-rocher.at 3 2026-03-22 2026-08-24 ok
www.yves-rocher.at 3 2025-10-28 2025-11-28 ok

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