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.

5 hosts · 263 ms

HostCertsFirst seenLast seenDNS
plany.jobs 18 2025-12-30 2026-08-24 ok
*.plany.jobs 18 2025-12-30 2026-08-24 —
career.plany.jobs 3 2026-08-20 2026-08-24 ok
*.career.plany.jobs 3 2026-08-20 2026-08-24 —
sales.plany.jobs 2 2025-06-19 2026-05-20 ok

Programmatic access, with DNS A records: API GET /v1/hosts/plany.jobs (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/plany.jobs.