Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

13 hosts · 273 ms

HostCertsFirst seenLast seenDNS
ad-italia.it 8 2025-08-12 2026-09-07 ok
*.ad-italia.it 10 2025-08-12 2026-09-09 —
c2.ad-italia.it 5 2025-12-29 2025-12-29 ok
c.ad-italia.it 5 2025-12-29 2025-12-29 ok
qc.ad-italia.it 10 2025-09-23 2026-08-24 ok
ssc.ad-italia.it 3 2026-05-02 2026-10-02 ok
interactive.ad-italia.it 1 2026-06-30 2026-06-30 ok
permutive.ad-italia.it 4 2026-04-20 2026-08-19 ok
stag.ad-italia.it 2 2026-04-09 2026-09-09 ok
interactive-stag.ad-italia.it 3 2026-06-16 2026-06-18 ok
link.ad-italia.it 4 2026-04-16 2026-08-14 ok
media-assets.ad-italia.it 5 2025-07-30 2026-08-26 ok
stag-media-assets.ad-italia.it 5 2025-07-30 2026-08-26 ok

Programmatic access, with DNS A records: API GET /v1/hosts/ad-italia.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/ad-italia.it.