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 · 342 ms

HostCertsFirst seenLast seenDNS
condenast.in 19 2025-10-06 2026-09-10 ok
*.condenast.in 18 2025-10-06 2026-09-10 —
link.condenast.in 5 2026-05-24 2026-09-21 ok

Programmatic access, with DNS A records: API GET /v1/hosts/condenast.in (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/condenast.in.