Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

7 hosts · 229 ms

HostCertsFirst seenLast seen
mgpsa.com 1 2026-02-26 2026-02-26
*.mgpsa.com 1 2026-02-26 2026-02-26
tb.mgpsa.com 5 2026-05-26 2026-09-23
crm.mgpsa.com 9 2026-05-27 2026-09-22
directorio.mgpsa.com 12 2026-06-07 2026-10-03
scar.mgpsa.com 10 2026-04-26 2026-08-22
kovu.mgpsa.com 6 2026-05-07 2026-09-02

Programmatic access: API GET /v1/hosts/mgpsa.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/mgpsa.com.