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 · 296 ms

HostCertsFirst seenLast seenDNS
cerebralpalsyguide.com 12 2026-04-17 2026-08-26 ok
*.cerebralpalsyguide.com 4 2026-06-26 2026-08-26 —
cezdp.cerebralpalsyguide.com 7 2026-05-26 2026-09-21 ok
www.cerebralpalsyguide.com 6 2026-04-19 2026-08-16 ok
birthinjury.cerebralpalsyguide.com 5 2026-03-13 2026-09-01 ok
burvz.cerebralpalsyguide.com 11 2026-05-26 2026-09-22 ok

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