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.

11 hosts · 270 ms

HostCertsFirst seenLast seen
documentgps.com 8 2025-11-11 2026-08-12
*.documentgps.com 4 2025-11-11 2026-06-02
staging.documentgps.com 8 2025-09-25 2026-08-27
*.staging.documentgps.com 8 2025-09-25 2026-08-27
*.app.staging.documentgps.com 8 2025-09-25 2026-08-27
bimi.documentgps.com 2 2025-07-03 2026-06-03
*.app.documentgps.com 4 2025-11-11 2026-06-02
dev.documentgps.com 8 2025-09-02 2026-08-26
*.dev.documentgps.com 8 2025-09-02 2026-08-26
*.app.dev.documentgps.com 8 2025-09-02 2026-08-26
www.documentgps.com 4 2026-04-12 2026-08-12

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