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 · 250 ms

HostCertsFirst seenLast seen
roadid.com 22 2026-04-18 2026-10-01
*.roadid.com 2 2025-07-21 2026-06-20
qa.roadid.com 15 2026-05-15 2026-09-26
static.roadid.com 3 2026-05-17 2026-09-30
team.roadid.com 1 2025-11-23 2025-11-23
cdn.roadid.com 3 2026-05-14 2026-09-28
id-cdn.roadid.com 2 2026-01-13 2026-06-10
imagegen.roadid.com 3 2026-02-22 2026-10-07
registration.roadid.com 12 2026-05-16 2026-09-29
help.roadid.com 16 2026-05-07 2026-09-03
hq.roadid.com 2 2026-02-24 2026-07-14
blobs.roadid.com 3 2026-05-14 2026-09-27
dogblobs.roadid.com 3 2026-05-14 2026-09-27
images.roadid.com 8 2025-07-15 2026-09-19
groups.roadid.com 13 2026-05-16 2026-09-26
events.roadid.com 24 2026-04-20 2026-10-02
accounts.roadid.com 15 2026-05-17 2026-09-28
account.roadid.com 15 2026-04-15 2026-09-26
www.roadid.com 13 2026-05-15 2026-09-27

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