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.

12 hosts · 291 ms

HostCertsFirst seenLast seen
wiex.io 5 2026-07-31 2026-10-04
*.wiex.io 3 2026-08-25 2026-10-04
stage.wiex.io 2 2026-08-01 2026-08-01
webmail.wiex.io 2 2026-08-02 2026-08-02
sendmail.wiex.io 1 2026-08-05 2026-08-05
crm.wiex.io 2 2026-08-01 2026-08-01
app.wiex.io 1 2026-08-05 2026-08-05
smtp.wiex.io 1 2026-08-19 2026-08-19
manager.wiex.io 2 2026-08-01 2026-08-01
autodiscover.wiex.io 2 2026-08-02 2026-08-02
uploads.wiex.io 1 2026-08-15 2026-08-15
www.wiex.io 2 2026-08-01 2026-08-01

Programmatic access: API GET /v1/hosts/wiex.io (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/wiex.io.