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.

20 hosts · 329 ms

HostCertsFirst seenLast seenDNS
kidsfootlocker.com 6 2026-04-26 2026-08-26 ok
*.kidsfootlocker.com 5 2026-06-04 2026-10-02 —
trk.bc.kidsfootlocker.com 3 2026-05-23 2026-09-09 ok
dd.kidsfootlocker.com 3 2026-06-03 2026-08-17 ok
mi.kidsfootlocker.com 4 2025-10-21 2026-09-16 ok
*.uat2.origin.kidsfootlocker.com 4 2026-04-16 2026-08-14 —
www.uat2.origin.kidsfootlocker.com 7 2026-05-15 2026-08-17 ok
*.test3.origin.kidsfootlocker.com 5 2026-04-24 2026-08-22 —
www.test3.origin.kidsfootlocker.com 2 2026-08-13 2026-08-13 ok
www.dev4.origin.kidsfootlocker.com 3 2026-04-15 2026-08-13 ok
www.test5.origin.kidsfootlocker.com 3 2026-04-15 2026-08-13 ok
www.dev5.origin.kidsfootlocker.com 3 2026-04-15 2026-08-13 ok
staging.origin.kidsfootlocker.com 6 2026-04-17 2026-08-08 ok
fszvo.kidsfootlocker.com 9 2026-05-17 2026-09-12 ok
help.kidsfootlocker.com 6 2026-05-04 2026-09-01 ok
jobs.kidsfootlocker.com 11 2026-04-10 2026-09-25 ok
stores.kidsfootlocker.com 4 2026-02-26 2026-07-14 ok
careers.kidsfootlocker.com 11 2026-04-09 2026-09-24 ok
target.kidsfootlocker.com 5 2025-07-21 2026-09-05 ok
rpt.kidsfootlocker.com 2 2025-10-30 2025-10-30 ok

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