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.

3 hosts · 322 ms

HostCertsFirst seenLast seenDNS
orbitexports.com 4 2026-04-16 2026-08-17 ok
*.orbitexports.com 1 2026-05-08 2026-05-08 —
www.orbitexports.com 4 2026-04-16 2026-08-17 ok

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