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.

2 hosts · 185 ms

HostCertsFirst seenLast seenDNS
cloud.suaconta.serasa.com.br 3 2025-08-24 2026-08-12 ok
image.suaconta.serasa.com.br 2 2026-02-23 2026-02-23 ok

Programmatic access, with DNS A records: API GET /v1/hosts/suaconta.serasa.com.br (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/suaconta.serasa.com.br.