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 · 289 ms

HostCertsFirst seenLast seenDNS
casadatoalha.com.br 8 2025-12-23 2026-08-31 ok
blog.casadatoalha.com.br 5 2026-05-29 2026-09-26 ok
click.casadatoalha.com.br 8 2026-04-13 2026-08-14 ok
www.casadatoalha.com.br 18 2025-12-23 2026-08-30 ok

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