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.

10 hosts · 270 ms

HostCertsFirst seenLast seen
fiwind.io 24 2025-08-13 2026-09-26
*.fiwind.io 13 2025-08-13 2026-09-26
trading.fiwind.io 4 2026-02-19 2026-10-03
panel.fiwind.io 2 2026-02-28 2026-07-18
admin.fiwind.io 3 2026-02-18 2026-07-14
help.fiwind.io 14 2026-06-10 2026-10-06
trading-uat.fiwind.io 3 2026-02-19 2026-10-03
panel-uat.fiwind.io 2 2026-02-15 2026-07-07
admin-uat.fiwind.io 3 2026-02-18 2026-07-14
www.fiwind.io 10 2026-05-19 2026-09-14

Programmatic access: API GET /v1/hosts/fiwind.io (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/fiwind.io.