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.

5 hosts · 249 ms

Download CSV
HostCertsFirst seenLast seen
shadowspear.cloud 2 2025-06-26 2026-07-20
*.shadowspear.cloud 2 2025-06-26 2026-07-20
ir-onboarding.shadowspear.cloud 5 2026-05-02 2026-09-04
saasalerts.shadowspear.cloud 3 2026-05-16 2026-09-07
status.shadowspear.cloud 4 2026-06-16 2026-10-12

Programmatic access: API GET /v1/hosts/shadowspear.cloud (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/shadowspear.cloud.