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 · 192 ms

HostCertsFirst seenLast seen
spriggyschools.com.au 4 2026-02-17 2026-08-31
*.spriggyschools.com.au 4 2026-02-17 2026-08-31
*.prod.spriggyschools.com.au 1 2026-02-18 2026-02-18
hello.spriggyschools.com.au 2 2025-07-12 2026-06-12
ablink.hello.spriggyschools.com.au 2 2025-07-12 2026-06-12
abmail.hello.spriggyschools.com.au 2 2025-07-12 2026-06-12
*.test.spriggyschools.com.au 4 2025-10-24 2026-09-24

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