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 · 265 ms

HostCertsFirst seenLast seenDNS
luxpointpartners.com 5 2026-04-29 2026-08-22 ok
open.luxpointpartners.com 5 2026-05-09 2026-09-26 ok
clicks.luxpointpartners.com 3 2026-05-30 2026-08-29 ok
opt.luxpointpartners.com 5 2026-05-09 2026-09-26 ok
www.luxpointpartners.com 5 2026-04-29 2026-08-22 ok

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