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.

5 hosts · 197 ms

HostCertsFirst seenLast seenDNS
inversionespopular.com.do 21 2026-02-12 2026-08-17 ok
*.inversionespopular.com.do 20 2026-02-12 2026-08-17 —
api.inversionespopular.com.do 1 2026-05-13 2026-05-13 ok
www.api.inversionespopular.com.do 1 2026-05-13 2026-05-13 nxdomain
www.inversionespopular.com.do 1 2026-04-23 2026-04-23 ok

Programmatic access, with DNS A records: API GET /v1/hosts/inversionespopular.com.do (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/inversionespopular.com.do.