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.

7 hosts · 351 ms

HostCertsFirst seenLast seenDNS
vptrad.com 15 2026-04-24 2026-09-28 ok
*.vptrad.com 5 2026-04-24 2026-08-22 —
staging2.vptrad.com 4 2026-06-04 2026-10-02 ok
*.staging2.vptrad.com 4 2026-06-04 2026-10-02 —
cms.vptrad.com 20 2026-05-30 2026-09-26 ok
*.cms.vptrad.com 20 2026-05-30 2026-09-26 —
www.vptrad.com 12 2026-05-31 2026-09-28 ok

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