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 · 251 ms

HostCertsFirst seenLast seenDNS
data.comunicaciones.bcp.com.pe 2 2026-02-22 2026-02-22 ok
cdn.comunicaciones.bcp.com.pe 2 2026-02-22 2026-07-25 ok
sms.comunicaciones.bcp.com.pe 2 2026-06-25 2026-06-25 ok
opt-out.comunicaciones.bcp.com.pe 5 2026-02-26 2026-08-14 ok

Programmatic access, with DNS A records: API GET /v1/hosts/comunicaciones.bcp.com.pe (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/comunicaciones.bcp.com.pe.