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.

3 hosts · 315 ms

HostCertsFirst seenLast seenDNS
zohovault.com 8 2026-04-16 2026-09-04 ok
notifications.zohovault.com 8 2026-06-02 2026-08-01 ok
zb14485357.notifications.zohovault.com 6 2026-06-07 2026-08-06 ok

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