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 · 257 ms

HostCertsFirst seenLast seen
nomadgoods.com 7 2026-04-18 2026-08-27
trk.nomadgoods.com 10 2026-05-25 2026-09-20
sgtm.nomadgoods.com 2 2026-08-25 2026-08-25
help.nomadgoods.com 16 2026-05-03 2026-08-30
server.nomadgoods.com 6 2026-04-23 2026-10-01
dashboards.nomadgoods.com 3 2026-05-22 2026-09-05
returns.nomadgoods.com 11 2026-05-16 2026-09-11
account.nomadgoods.com 13 2026-04-19 2026-10-02
checkout.nomadgoods.com 17 2026-04-18 2026-10-01
www.nomadgoods.com 13 2026-05-18 2026-09-28

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