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.

6 hosts · 311 ms

HostCertsFirst seenLast seenDNS
fun4ocalakids.com 7 2026-04-20 2026-10-05 ok
newstrack.fun4ocalakids.com 2 2025-09-24 2026-08-25 ok
mail.fun4ocalakids.com 5 2026-04-26 2026-08-24 ok
webmail.fun4ocalakids.com 5 2026-04-26 2026-08-24 ok
bigm.fun4ocalakids.com 2 2025-10-03 2026-09-03 ok
www.fun4ocalakids.com 2 2026-04-20 2026-10-05 ok

Programmatic access, with DNS A records: API GET /v1/hosts/fun4ocalakids.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/fun4ocalakids.com.