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.

7 hosts · 206 ms

HostCertsFirst seenLast seen
kasaustralia.com.au 15 2026-05-15 2026-09-28
data.kasaustralia.com.au 6 2026-05-31 2026-10-01
zlywd.kasaustralia.com.au 2 2026-09-22 2026-09-22
click.kasaustralia.com.au 2 2026-10-07 2026-10-07
help.kasaustralia.com.au 6 2026-05-06 2026-09-01
shop.kasaustralia.com.au 17 2026-05-16 2026-09-24
www.kasaustralia.com.au 15 2026-05-16 2026-09-23

Programmatic access: API GET /v1/hosts/kasaustralia.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/kasaustralia.com.au.