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.

13 hosts · 277 ms

HostCertsFirst seenLast seenDNS
northernterritory.com 23 2026-04-23 2026-09-27 ok
*.northernterritory.com 14 2026-04-24 2026-08-21 —
id.northernterritory.com 5 2026-04-12 2026-08-23 ok
e.northernterritory.com 4 2026-06-07 2026-10-05 ok
cloudflare.northernterritory.com 10 2026-04-19 2026-08-15 ok
staging.northernterritory.com 3 2026-06-26 2026-08-25 ok
auth.northernterritory.com 2 2026-03-24 2026-07-17 ok
i.northernterritory.com 6 2026-05-06 2026-09-01 ok
cdp.northernterritory.com 3 2026-03-17 2026-08-17 ok
cs.northernterritory.com 5 2026-05-26 2026-09-22 ok
id-uat.northernterritory.com 4 2026-04-13 2026-08-25 ok
preview.northernterritory.com 2 2026-08-07 2026-10-06 ok
www.northernterritory.com 4 2026-05-11 2026-07-29 ok

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