Find every subdomain
of a domain.

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

13 hosts · 256 ms

HostCertsFirst seenLast seenDNS
achmea.com.au 6 2025-09-08 2026-09-07 ok
owa.achmea.com.au 1 2025-09-23 2025-09-23 nodata
skpeweb.achmea.com.au 1 2025-09-23 2025-09-23 nodata
secure.achmea.com.au 5 2025-09-08 2026-09-07 ok
staging.achmea.com.au 2 2025-09-05 2026-09-01 ok
studstock.achmea.com.au 5 2025-09-08 2026-09-07 ok
mail.achmea.com.au 1 2025-09-23 2025-09-23 nodata
dialin.achmea.com.au 1 2025-09-23 2025-09-23 nodata
sso.achmea.com.au 1 2025-09-23 2025-09-23 nodata
lyncdiscover.achmea.com.au 1 2025-09-23 2025-09-23 nodata
autodiscover.achmea.com.au 1 2025-09-23 2025-09-23 nodata
meet.achmea.com.au 1 2025-09-23 2025-09-23 nodata
www.achmea.com.au 5 2025-09-08 2026-09-07 ok

Programmatic access, with DNS A records: API GET /v1/hosts/achmea.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/achmea.com.au.