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.

16 hosts · 305 ms

HostCertsFirst seenLast seenDNS
globaltize.com 18 2026-05-01 2026-08-21 ok
mail.globaltize.com 1 2026-06-21 2026-06-21 ok
intro.globaltize.com 3 2026-09-03 2026-09-21 ok
app.globaltize.com 3 2025-08-29 2026-09-26 nxdomain
dev-app.globaltize.com 1 2025-08-29 2025-08-29 nxdomain
clerk.app.globaltize.com 2 2026-10-05 2026-10-05 —
accounts.app.globaltize.com 2 2026-10-05 2026-10-05 —
dashboards.globaltize.com 5 2026-05-26 2026-09-23 ok
clerk.dashboards.globaltize.com 11 2026-05-26 2026-09-21 ok
accounts.dashboards.globaltize.com 7 2026-05-26 2026-09-21 ok
forms.globaltize.com 3 2026-05-11 2026-08-08 ok
t.globaltize.com 6 2026-06-02 2026-09-30 ok
www.globaltize.com 11 2026-05-08 2026-09-05 ok
inbox.globaltize.com 3 2026-04-18 2026-09-13 ok
pay.globaltize.com 2 2025-06-26 2026-06-26 nxdomain
www.pay.globaltize.com 2 2025-06-26 2026-06-26 nxdomain

Programmatic access, with DNS A records: API GET /v1/hosts/globaltize.com (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/globaltize.com.