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 · 274 ms

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HostCertsFirst seenLast seen
notino.it 22 2026-04-28 2026-10-12
*.notino.it 19 2026-04-28 2026-09-17
career.notino.it 5 2026-06-21 2026-08-27
t.notino.it 12 2025-09-15 2026-10-13
u.notino.it 13 2025-09-15 2026-10-13
email.ov.notino.it 5 2026-05-29 2026-09-26
www.notino.it 3 2026-06-15 2026-10-12

Programmatic access: API GET /v1/hosts/notino.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/notino.it.