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.

16 hosts · 290 ms

Download CSV
HostCertsFirst seenLast seen
airmatic.com 5 2026-05-09 2026-09-16
prod.airmatic.com 5 2026-05-09 2026-09-16
staging.airmatic.com 5 2026-06-11 2026-09-02
api.airmatic.com 3 2026-06-19 2026-08-22
staging.api.airmatic.com 5 2026-04-27 2026-09-04
go.api.airmatic.com 3 2026-06-19 2026-08-23
staging.go.api.airmatic.com 5 2026-05-04 2026-09-11
datamanager.airmatic.com 5 2026-05-04 2026-09-11
staging.datamanager.airmatic.com 5 2026-05-04 2026-09-11
workmaster.airmatic.com 5 2026-05-07 2026-09-14
staging.workmaster.airmatic.com 4 2026-06-04 2026-10-12
products.airmatic.com 4 2026-04-19 2026-08-27
mta-sts.airmatic.com 7 2026-06-03 2026-10-01
pma.dev.airmatic.com 3 2026-06-04 2026-08-08
ts.dev.airmatic.com 3 2026-06-04 2026-08-08
www.airmatic.com 5 2026-05-09 2026-09-16

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