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.

7 hosts · 285 ms

HostCertsFirst seenLast seenDNS
pointsbet.com.au 14 2026-04-23 2026-09-03 ok
*.pointsbet.com.au 14 2026-04-23 2026-09-03 —
ablink.mail.pointsbet.com.au 8 2026-05-02 2026-08-28 ok
signup.pointsbet.com.au 14 2026-04-13 2026-08-09 ok
careers.pointsbet.com.au 11 2026-05-29 2026-09-25 ok
investors.pointsbet.com.au 18 2026-06-04 2026-10-02 ok
support.pointsbet.com.au 5 2026-05-02 2026-08-30 ok

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