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.

30 hosts · 271 ms

HostCertsFirst seenLast seen
airbase.io 46 2026-04-17 2026-10-12
*.airbase.io 46 2026-04-17 2026-10-12
vgs-svb-backend.airbase.io 3 2026-05-29 2026-08-07
vgs-amex-backend.airbase.io 3 2026-05-31 2026-08-09
dashboard.airbase.io 9 2026-04-18 2026-10-13
stage.airbase.io 13 2026-04-18 2026-10-12
api-stage.airbase.io 4 2026-06-09 2026-10-07
partners-stage.airbase.io 15 2026-04-18 2026-10-13
vendors-stage.airbase.io 14 2026-04-18 2026-10-13
gateway-stage.airbase.io 4 2026-06-08 2026-10-07
vgs-svb-backend.stage.airbase.io 6 2026-05-20 2026-10-07
vgs-amex-backend.stage.airbase.io 3 2026-05-28 2026-08-06
auth.airbase.io 10 2026-05-01 2026-08-28
api.airbase.io 5 2026-05-27 2026-09-25
*.pendo.airbase.io 7 2026-06-19 2026-08-17
data.pendo.airbase.io 2 2026-06-30 2026-08-26
content.pendo.airbase.io 2 2026-06-30 2026-08-21
demo.airbase.io 14 2026-04-18 2026-10-12
stage-demo.airbase.io 13 2026-04-18 2026-10-12
partners-stage-demo.airbase.io 10 2026-04-20 2026-08-16
vendors-stage-demo.airbase.io 15 2026-04-18 2026-10-12
partners-demo.airbase.io 8 2026-04-19 2026-08-15
vendors-demo.airbase.io 8 2026-04-19 2026-08-15
developer.airbase.io 10 2026-04-19 2026-08-15
partners.airbase.io 13 2026-04-18 2026-10-13
vendors.airbase.io 13 2026-04-18 2026-10-12
network-test.airbase.io 5 2026-05-24 2026-09-23
sandbox.airbase.io 10 2026-04-19 2026-08-15
api-sandbox.airbase.io 5 2026-06-10 2026-10-09
gateway.airbase.io 5 2026-05-27 2026-09-25

Programmatic access: API GET /v1/hosts/airbase.io (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/airbase.io.