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 · 341 ms

HostCertsFirst seenLast seenDNS
nursinghomeabusecenter.com 16 2026-04-19 2026-08-26 ok
*.nursinghomeabusecenter.com 4 2026-06-26 2026-08-26 —
voiqe.nursinghomeabusecenter.com 11 2026-06-03 2026-09-29 ok
www.nursinghomeabusecenter.com 12 2026-04-19 2026-08-16 ok

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