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.

5 hosts · 306 ms

HostCertsFirst seenLast seenDNS
lubar.it 7 2026-04-22 2026-09-26 ok
staging.lubar.it 1 2026-06-01 2026-06-01 ok
shop.lubar.it 3 2026-07-29 2026-09-26 ok
account.shop.lubar.it 1 2026-09-07 2026-09-07 ok
www.lubar.it 6 2026-04-22 2026-09-24 ok

Programmatic access, with DNS A records: API GET /v1/hosts/lubar.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/lubar.it.