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.

10 hosts · 252 ms

HostCertsFirst seenLast seenDNS
debtmanagers.com.au 9 2026-04-22 2026-08-29 ok
*.debtmanagers.com.au 9 2026-01-30 2026-07-29 —
e1.debtmanagers.com.au 3 2026-03-27 2026-08-22 ok
agentkpi.debtmanagers.com.au 2 2026-06-05 2026-07-08 ok
dmportal.debtmanagers.com.au 4 2026-05-23 2026-07-17 ok
mail.debtmanagers.com.au 1 2026-05-13 2026-05-13 nodata
app.debtmanagers.com.au 7 2026-05-20 2026-09-07 ok
mta-sts.debtmanagers.com.au 5 2026-05-30 2026-09-27 ok
www.debtmanagers.com.au 5 2026-04-29 2026-08-29 ok
pay.debtmanagers.com.au 3 2026-05-08 2026-08-28 ok

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