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.

6 hosts · 265 ms

HostCertsFirst seenLast seenDNS
cvwizard.com 4 2025-06-30 2026-06-01 ok
*.cvwizard.com 2 2025-06-30 2026-05-31 —
link.cvwizard.com 1 2025-11-10 2025-11-10 ok
icu.cvwizard.com 2 2026-01-01 2026-01-01 ok
preview-icu.cvwizard.com 1 2026-01-01 2026-01-01 ok
www.cvwizard.com 4 2025-06-30 2026-06-01 ok

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