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.

13 hosts · 279 ms

HostCertsFirst seenLast seen
tempdev.com 8 2025-09-19 2026-08-20
stage.www2.tempdev.com 1 2026-09-28 2026-09-28
storybook-stage.www2.tempdev.com 1 2026-09-28 2026-09-28
portainer-stage.www2.tempdev.com 1 2026-09-28 2026-09-28
cms-stage.www2.tempdev.com 1 2026-09-28 2026-09-28
prox2.tempdev.com 5 2026-05-29 2026-09-26
bimi.tempdev.com 2 2025-07-17 2026-06-17
mumm.tempdev.com 10 2026-05-29 2026-09-26
vip.tempdev.com 10 2026-04-30 2026-08-30
password.dev.tempdev.com 5 2026-05-14 2026-09-03
www.tempdev.com 6 2026-04-20 2026-07-18
wp.www.tempdev.com 6 2026-04-20 2026-07-18
gateway.tempdev.com 6 2026-05-14 2026-10-07

Programmatic access: API GET /v1/hosts/tempdev.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/tempdev.com.