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.

7 hosts · 308 ms

HostCertsFirst seenLast seenDNS
forcefamilyoffice.com 22 2026-05-08 2026-09-28 ok
*.forcefamilyoffice.com 16 2026-05-08 2026-09-28 —
mk.forcefamilyoffice.com 10 2026-05-10 2026-09-05 ok
cs.forcefamilyoffice.com 10 2026-05-06 2026-09-01 ok
slinks.forcefamilyoffice.com 12 2026-04-15 2026-08-11 ok
events.forcefamilyoffice.com 10 2026-05-10 2026-09-06 ok
www.forcefamilyoffice.com 10 2026-05-17 2026-09-13 ok

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