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.

10 hosts · 199 ms

HostCertsFirst seenLast seen
emails.meridianaccount.co.nz 2 2026-04-29 2026-05-11
res2.emails.meridianaccount.co.nz 1 2026-07-01 2026-07-01
t2.emails.meridianaccount.co.nz 1 2026-07-01 2026-07-01
m3.emails.meridianaccount.co.nz 1 2026-07-01 2026-07-01
res3.emails.meridianaccount.co.nz 1 2026-07-01 2026-07-01
t3.emails.meridianaccount.co.nz 1 2026-07-01 2026-07-01
web.emails.meridianaccount.co.nz 1 2026-07-01 2026-07-01
m.emails.meridianaccount.co.nz 3 2026-04-29 2026-07-01
res.emails.meridianaccount.co.nz 3 2026-04-29 2026-07-01
t.emails.meridianaccount.co.nz 3 2026-04-29 2026-07-01

Programmatic access: API GET /v1/hosts/meridianaccount.co.nz (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/meridianaccount.co.nz.