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.

4 hosts · 363 ms

HostCertsFirst seenLast seenDNS
cloud.uy.unicef.org 1 2026-02-13 2026-02-13 ok
image.uy.unicef.org 3 2025-08-20 2026-09-07 ok
click.uy.unicef.org 1 2026-02-12 2026-02-12 ok
view.uy.unicef.org 1 2026-02-13 2026-02-13 ok

Programmatic access, with DNS A records: API GET /v1/hosts/uy.unicef.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/uy.unicef.org.