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.

9 hosts · 223 ms

HostCertsFirst seenLast seen
ficep.it 17 2025-12-09 2026-08-13
*.ficep.it 13 2025-12-09 2026-01-07
kb.ficep.it 2 2026-02-26 2026-06-19
antispam.ficep.it 3 2026-07-06 2026-09-28
scan.ficep.it 2 2026-02-27 2026-06-20
integration.ficep.it 2 2026-02-23 2026-06-16
voip.ficep.it 1 2026-09-09 2026-09-09
mta-sts.ficep.it 5 2026-04-14 2026-10-08
www.ficep.it 4 2026-04-15 2026-08-13

Programmatic access: API GET /v1/hosts/ficep.it (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/ficep.it.