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.

19 hosts · 282 ms

HostCertsFirst seenLast seen
apra.com.au 7 2025-08-20 2026-09-02
*.apra.com.au 7 2025-08-20 2026-09-02
pda.apra.com.au 3 2026-02-22 2026-10-06
servicedesk.jira.apra.com.au 2 2025-09-01 2026-08-02
cdata.apra.com.au 1 2025-10-28 2025-10-28
matching.apra.com.au 2 2025-07-16 2026-06-16
*.matching.apra.com.au 2 2025-07-16 2026-06-16
vandayoung.apra.com.au 3 2026-02-18 2026-10-02
servicedesk.apra.com.au 2 2025-09-01 2026-08-02
*.shared.internal.apra.com.au 1 2025-12-01 2025-12-01
*.prd.internal.apra.com.au 2 2025-10-27 2026-09-27
screenmusicawards.apra.com.au 4 2026-02-18 2026-10-03
artmusicawards.apra.com.au 5 2026-02-20 2026-10-04
matching.uat.apra.com.au 2 2026-03-05 2026-07-21
*.matching.uat.apra.com.au 2 2026-03-05 2026-07-21
matching.sit.apra.com.au 1 2025-07-14 2025-07-14
*.matching.sit.apra.com.au 1 2025-07-14 2025-07-14
matching.dev.apra.com.au 2 2026-03-04 2026-07-20
*.matching.dev.apra.com.au 2 2026-03-04 2026-07-20

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