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.

3 hosts · 272 ms

HostCertsFirst seenLast seenDNS
onepath.com.au 69 2025-11-04 2026-10-06 ok
*.onepath.com.au 69 2026-01-16 2026-09-30 —
www.onepath.com.au 6 2025-11-04 2026-10-06 ok

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