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.

4 hosts · 264 ms

HostCertsFirst seenLast seenDNS
aadharhousing.com 1 2026-01-28 2026-01-28 ok
*.aadharhousing.com 2 2026-01-28 2026-07-20 —
gscampaign.aadharhousing.com 5 2026-05-16 2026-09-16 ok
adhfiu.aadharhousing.com 20 2026-04-10 2026-09-17 ok

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