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.

5 hosts · 170 ms

HostCertsFirst seenLast seen
kds.vic.edu.au 11 2026-03-25 2026-09-21
*.kds.vic.edu.au 1 2026-05-19 2026-05-19
mydev.kds.vic.edu.au 5 2026-05-03 2026-08-30
www.kds.vic.edu.au 11 2026-03-25 2026-09-21
my.kds.vic.edu.au 5 2026-05-14 2026-09-10

Programmatic access: API GET /v1/hosts/kds.vic.edu.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/kds.vic.edu.au.