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 · 285 ms

HostCertsFirst seenLast seenDNS
grupohame.com 28 2026-04-08 2026-09-28 ok
*.grupohame.com 24 2026-04-11 2026-09-25 —
cpanel.grupohame.com 4 2026-04-08 2026-09-28 ok
webmail.grupohame.com 4 2026-04-08 2026-09-28 ok
incidencias.grupohame.com 5 2026-04-25 2026-08-25 ok
mta-sts.grupohame.com 5 2026-05-01 2026-09-03 ok
dev.grupohame.com 5 2026-05-27 2026-09-26 ok

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