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.

27 hosts · 214 ms

HostCertsFirst seenLast seen
roame.travel 145 2025-06-17 2026-09-09
*.roame.travel 140 2025-06-17 2026-09-09
mastra.roame.travel 5 2026-05-21 2026-09-18
empire.roame.travel 139 2025-10-27 2026-09-09
*.empire.roame.travel 140 2025-06-17 2026-09-09
staging.empire.roame.travel 6 2026-05-07 2026-09-04
staging.roame.travel 5 2026-05-03 2026-09-04
routes-staging.roame.travel 6 2026-04-17 2026-08-15
go-workers-staging.roame.travel 3 2026-04-17 2026-04-17
tracking.roame.travel 3 2026-04-29 2026-09-29
ai.roame.travel 4 2026-06-03 2026-10-05
tracking.sensei.roame.travel 1 2026-06-22 2026-06-22
api.roame.travel 5 2026-05-06 2026-09-03
otel.roame.travel 5 2026-05-12 2026-09-09
cdn.roame.travel 2 2026-04-01 2026-09-01
tracking.notification.roame.travel 4 2026-04-29 2026-09-29
help.roame.travel 5 2026-05-25 2026-09-22
trantor.roame.travel 5 2026-05-11 2026-09-08
routes.roame.travel 5 2026-05-03 2026-08-31
staging.routes.roame.travel 1 2026-04-17 2026-04-17
go-workers.roame.travel 2 2026-05-03 2026-05-03
developers.roame.travel 1 2026-10-06 2026-10-06
clerk.developers.roame.travel 2 2026-10-06 2026-10-06
accounts.developers.roame.travel 2 2026-10-06 2026-10-06
ghostbusters.roame.travel 3 2026-06-08 2026-08-07
eot.roame.travel 5 2026-05-19 2026-09-16
www.roame.travel 4 2026-04-15 2026-08-17

Programmatic access: API GET /v1/hosts/roame.travel (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/roame.travel.