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.

4 hosts · 233 ms

HostCertsFirst seenLast seenDNS
getproductpeople.com 13 2026-05-19 2026-09-15 ok
trail.getproductpeople.com 5 2026-05-16 2026-09-12 ok
view.getproductpeople.com 5 2026-05-30 2026-09-28 ok
www.getproductpeople.com 8 2026-05-03 2026-08-30 ok

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