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.

5 hosts · 294 ms

HostCertsFirst seenLast seen
lafermeducbd.fr 21 2026-05-12 2026-10-01
*.lafermeducbd.fr 21 2026-05-12 2026-10-01
img.news.lafermeducbd.fr 17 2026-05-03 2026-08-29
r.news.lafermeducbd.fr 5 2026-04-27 2026-10-05
test.lafermeducbd.fr 3 2026-06-21 2026-08-29

Programmatic access: API GET /v1/hosts/lafermeducbd.fr (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/lafermeducbd.fr.