Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

19 hosts · 249 ms

HostCertsFirst seenLast seen
uisp.com 9 2025-09-21 2026-09-21
*.uisp.com 43 2025-09-21 2026-10-01
stg.uisp.com 5 2025-09-21 2026-07-28
*.stg.uisp.com 39 2025-09-21 2026-10-04
r.stg.uisp.com 1 2026-06-24 2026-06-24
*.r.stg.uisp.com 34 2026-04-16 2026-10-04
experts.stg.uisp.com 4 2025-06-17 2026-05-18
community.stg.uisp.com 2 2026-01-12 2026-01-12
help.uisp.com 4 2026-04-13 2026-08-11
r.uisp.com 1 2026-06-24 2026-06-24
*.r.uisp.com 34 2026-04-17 2026-10-01
experts.uisp.com 4 2025-07-10 2026-06-10
dev.uisp.com 5 2025-09-21 2026-07-15
*.dev.uisp.com 39 2025-09-21 2026-10-06
help.dev.uisp.com 4 2025-08-09 2026-07-11
*.help.dev.uisp.com 4 2025-08-09 2026-07-11
*.r.dev.uisp.com 35 2026-04-11 2026-10-07
experts.dev.uisp.com 4 2025-06-17 2026-05-18
community.dev.uisp.com 3 2025-12-15 2025-12-15

Programmatic access: API GET /v1/hosts/uisp.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/uisp.com.