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.

9 hosts · 288 ms

HostCertsFirst seenLast seenDNS
uwmcareers.com 26 2025-07-21 2026-09-20 ok
*.uwmcareers.com 23 2026-05-14 2026-09-20 —
s40.uwmcareers.com 3 2025-07-21 2026-06-08 nxdomain
s01.uwmcareers.com 3 2025-07-21 2026-06-08 nxdomain
www2.uwmcareers.com 16 2026-05-14 2026-09-30 ok
*.www2.uwmcareers.com 16 2026-05-14 2026-09-30 —
int.uwmcareers.com 6 2026-04-12 2026-04-21 servfail
*.int.uwmcareers.com 6 2026-04-12 2026-04-21 —
www.uwmcareers.com 3 2025-07-21 2026-06-08 ok

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