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 · 286 ms

HostCertsFirst seenLast seen
actuafpmaragall.org 5 2026-05-10 2026-09-07
stg.actuafpmaragall.org 4 2026-06-04 2026-10-02
email.actuafpmaragall.org 5 2026-05-10 2026-09-07
sms.actuafpmaragall.org 4 2026-04-30 2026-10-09
cat.actuafpmaragall.org 5 2026-05-10 2026-09-07
stg.cat.actuafpmaragall.org 5 2026-05-10 2026-09-07
www.actuafpmaragall.org 5 2026-05-10 2026-09-07

Programmatic access: API GET /v1/hosts/actuafpmaragall.org (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/actuafpmaragall.org.