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.

6 hosts · 260 ms

Download CSV
HostCertsFirst seenLast seen
digital-college.fr 9 2026-05-04 2026-10-07
*.digital-college.fr 7 2026-05-04 2026-10-07
campusnumeric.digital-college.fr 3 2026-06-05 2026-08-05
dev.campusnumerique.digital-college.fr 4 2026-05-19 2026-07-19
info.digital-college.fr 2 2026-05-28 2026-05-28
studio-dojo.digital-college.fr 3 2026-04-19 2026-06-19

Programmatic access: API GET /v1/hosts/digital-college.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/digital-college.fr.