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.

6 hosts · 299 ms

HostCertsFirst seenLast seenDNS
sprintlaw.com.au 16 2026-04-17 2026-08-13 ok
*.sprintlaw.com.au 13 2026-04-17 2026-08-13 —
staging.sprintlaw.com.au 1 2026-04-16 2026-04-16 ok
sign.sprintlaw.com.au 1 2025-11-18 2025-11-18 ok
t.sprintlaw.com.au 5 2026-05-31 2026-09-17 ok
www.sprintlaw.com.au 3 2026-06-03 2026-08-03 ok

Programmatic access, with DNS A records: API GET /v1/hosts/sprintlaw.com.au (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/sprintlaw.com.au.