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.

8 hosts · 315 ms

HostCertsFirst seenLast seenDNS
melrosepodcasts.com 22 2026-04-11 2026-09-21 ok
*.melrosepodcasts.com 14 2026-04-11 2026-09-21 —
la.melrosepodcasts.com 5 2026-06-06 2026-10-04 ok
test.melrosepodcasts.com 4 2026-06-08 2026-10-06 ok
www.melrosepodcasts.com 8 2026-05-17 2026-08-14 ok
*.www.melrosepodcasts.com 6 2026-06-16 2026-08-14 —
atx.melrosepodcasts.com 5 2026-05-02 2026-08-30 ok
ny.melrosepodcasts.com 4 2026-06-06 2026-10-04 ok

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