Find every subdomain
of a domain.

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

8 hosts · 258 ms

HostCertsFirst seenLast seen
indebted.au 6 2026-05-06 2026-09-02
mail2.indebted.au 7 2026-06-18 2026-08-17
static.indebted.au 1 2026-02-04 2026-02-04
metabase.indebted.au 2 2025-12-03 2026-06-04
partners.indebted.au 6 2025-12-02 2026-09-15
metabase.dev.indebted.au 1 2026-06-03 2026-06-03
partners.dev.indebted.au 1 2026-05-21 2026-05-21
www.indebted.au 6 2026-05-06 2026-09-02

Programmatic access: API GET /v1/hosts/indebted.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/indebted.au.