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.

30 hosts · 383 ms

HostCertsFirst seenLast seenDNS
truv.com 2 2026-01-02 2026-06-15 ok
*.truv.com 13 2025-11-25 2026-08-15 —
api-mtls.navyfed.truv.com 1 2025-08-19 2025-08-19 nxdomain
www.api-mtls.navyfed.truv.com 1 2025-08-19 2025-08-19 nxdomain
dashboard.truv.com 2 2025-11-03 2026-10-04 ok
auth-stage.truv.com 10 2026-05-04 2026-08-31 ok
blog.truv.com 8 2026-04-17 2026-08-13 ok
api-sandbox-mtls.nysdoh.truv.com 1 2026-05-07 2026-05-07 nxdomain
www.api-sandbox-mtls.nysdoh.truv.com 1 2026-05-07 2026-05-07 nxdomain
auth.truv.com 10 2026-05-01 2026-08-28 ok
team.truv.com 7 2026-05-27 2026-09-22 ok
cdn.truv.com 1 2025-12-03 2025-12-03 ok
go.truv.com 11 2026-06-05 2026-10-01 ok
demo.truv.com 1 2026-06-17 2026-06-17 ok
*.demo.truv.com 1 2026-06-17 2026-06-17 —
help.truv.com 10 2026-04-17 2026-08-13 ok
consumer.truv.com 8 2026-04-16 2026-08-12 ok
docs.truv.com 12 2026-05-06 2026-08-23 ok
api-sandbox-mtls.calheers.truv.com 1 2026-05-20 2026-05-20 nxdomain
www.api-sandbox-mtls.calheers.truv.com 1 2026-05-20 2026-05-20 nxdomain
status.truv.com 5 2026-05-31 2026-09-27 ok
meet.truv.com 12 2026-04-24 2026-08-20 ok
*.gov-int.truv.com 1 2026-07-15 2026-07-15 —
support.truv.com 8 2026-05-03 2026-08-29 ok
trust.truv.com 6 2026-05-01 2026-08-27 ok
auth-dev.truv.com 10 2026-04-22 2026-08-19 ok
*.gov.truv.com 1 2026-07-01 2026-07-01 —
docs-legacy.truv.com 7 2026-06-25 2026-08-23 ok
auth.my.truv.com 10 2026-05-14 2026-09-09 ok
auth-dev.my.truv.com 10 2026-05-13 2026-09-10 ok

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