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.

7 hosts · 272 ms

HostCertsFirst seenLast seen
rbafrance.fr 5 2026-05-26 2026-09-13
boutique.rbafrance.fr 5 2026-05-02 2026-08-31
ssgtm-boutique.rbafrance.fr 3 2026-05-07 2026-08-21
ssgtm-pvw-boutique.rbafrance.fr 4 2026-04-26 2026-10-08
mcstaging.rbafrance.fr 7 2026-06-16 2026-10-09
mailing.rbafrance.fr 2 2026-09-07 2026-09-07
www.rbafrance.fr 5 2026-05-26 2026-09-13

Programmatic access: API GET /v1/hosts/rbafrance.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/rbafrance.fr.