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.

8 hosts · 229 ms

HostCertsFirst seenLast seen
elevated.school 39 2026-06-04 2026-09-30
*.elevated.school 16 2026-06-04 2026-09-30
hub.elevated.school 7 2026-06-28 2026-08-26
*.hub.elevated.school 7 2026-06-28 2026-08-26
getstarted.elevated.school 2 2026-04-28 2026-04-28
g.elevated.school 13 2026-06-06 2026-10-02
www.elevated.school 16 2026-06-04 2026-09-30
*.www.elevated.school 16 2026-06-04 2026-09-30

Programmatic access: API GET /v1/hosts/elevated.school (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/elevated.school.