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.

99 hosts · 418 ms

HostCertsFirst seenLast seenDNS
zoominfo.com 80 2026-04-27 2026-09-20 ok
*.zoominfo.com 42 2026-04-27 2026-09-20 —
payments-dev1.zoominfo.com 1 2025-10-08 2025-10-08 nodata
www.payments-dev1.zoominfo.com 1 2025-10-08 2025-10-08 nodata
api.schedule-preprod.zoominfo.com 4 2025-10-19 2026-09-21 ok
chat-preprod.zoominfo.com 2 2026-04-08 2026-09-08 ok
ws-stg-gae.zoominfo.com 4 2026-05-04 2026-08-19 ok
zspace.zoominfo.com 3 2025-08-24 2026-07-25 ok
data.guide-engage.zoominfo.com 6 2026-04-23 2026-10-03 ok
content.guide-engage.zoominfo.com 2 2026-04-12 2026-09-12 ok
knowledgecenter.engage.zoominfo.com 11 2026-06-10 2026-08-29 ok
intake.zoominfo.com 3 2026-05-05 2026-08-22 ok
schedule.zoominfo.com 2 2025-10-01 2026-09-01 ok
api.schedule.zoominfo.com 5 2025-10-01 2026-09-10 ok
uploads.schedule.zoominfo.com 1 2026-01-24 2026-01-24 ok
data.guide-zi-lite.zoominfo.com 4 2026-05-31 2026-09-19 ok
content.guide-zi-lite.zoominfo.com 2 2026-04-12 2026-09-12 ok
emailmg.zoominfo.com 4 2026-04-14 2026-08-12 ok
staging.zoominfo.com 13 2026-04-21 2026-09-28 nodata
schedule-staging.zoominfo.com 2 2025-10-01 2026-09-01 ok
api.schedule-staging.zoominfo.com 6 2025-10-02 2026-09-21 ok
uploads.schedule-staging.zoominfo.com 1 2026-01-24 2026-01-24 ok
billing-staging.zoominfo.com 6 2026-01-23 2026-09-11 ok
www.billing-staging.zoominfo.com 1 2026-01-23 2026-01-23 nxdomain
frapi-staging.zoominfo.com 3 2026-04-29 2026-08-13 ok
api.messaging-platform-staging.zoominfo.com 4 2025-10-01 2026-09-02 ok
signin-staging.zoominfo.com 2 2026-05-01 2026-05-01 ok
p-staging.zoominfo.com 9 2026-04-13 2026-09-13 ok
operationsos-staging.zoominfo.com 2 2025-08-16 2026-07-17 ok
chat-staging.zoominfo.com 4 2025-06-19 2026-09-08 ok
engage-support-staging.zoominfo.com 2 2026-03-03 2026-07-19 ok
pay-staging.zoominfo.com 1 2026-02-03 2026-02-03 ok
www.pay-staging.zoominfo.com 1 2026-02-03 2026-02-03 nxdomain
*.staging.zoominfo.com 13 2026-04-21 2026-09-28 —
booking.zoominfo.com 2 2025-09-30 2026-08-31 ok
billing.zoominfo.com 8 2026-01-23 2026-08-08 ok
www.billing.zoominfo.com 1 2026-01-23 2026-01-23 nxdomain
operationsos-stg.zoominfo.com 2 2026-03-10 2026-07-26 ok
*.inboxai.zoominfo.com 12 2026-04-27 2026-08-23 —
mi.zoominfo.com 1 2025-12-28 2025-12-28 nodata
chat-preprod.api.zoominfo.com 5 2026-04-08 2026-09-19 ok
chat-staging.api.zoominfo.com 4 2026-04-08 2026-09-17 ok
chat.api.zoominfo.com 5 2026-04-15 2026-09-19 ok
frapi.zoominfo.com 3 2026-04-28 2026-08-15 ok
click.zoominfo.com 6 2026-05-20 2026-09-15 ok
pclick.zoominfo.com 1 2026-01-12 2026-01-12 ok
test.internal.zoominfo.com 10 2026-04-17 2026-08-13 ok
1pscim.zoominfo.com 10 2026-04-26 2026-09-27 ok
api.messaging-platform.zoominfo.com 4 2025-10-01 2026-09-10 ok
data.guide-admin.zoominfo.com 3 2026-05-07 2026-08-25 ok
content.guide-admin.zoominfo.com 2 2026-04-12 2026-09-12 ok
p.zoominfo.com 7 2026-05-02 2026-09-14 ok
help.zoominfo.com 2 2025-10-08 2026-09-16 ok
www.help.zoominfo.com 14 2025-10-08 2026-09-16 ok
data.guide-app.zoominfo.com 3 2026-04-25 2026-08-13 ok
content.guide-app.zoominfo.com 2 2026-04-12 2026-09-12 ok
offer.zoominfo.com 7 2026-06-15 2026-08-13 ok
data.guide-recruiter.zoominfo.com 3 2026-05-03 2026-08-21 ok
content.guide-recruiter.zoominfo.com 2 2026-04-13 2026-09-13 ok
knowledgecenter.zoominfo.com 14 2026-05-31 2026-09-27 ok
register.zoominfo.com 5 2026-05-24 2026-09-21 ok
email.register.zoominfo.com 5 2026-05-24 2026-09-21 ok
ir.zoominfo.com 3 2026-06-02 2026-08-11 ok
docs.zoominfo.com 12 2026-05-20 2026-09-15 ok
api-docs.zoominfo.com 5 2026-05-20 2026-09-17 ok
pages.zoominfo.com 10 2026-05-14 2026-09-09 ok
signatures.zoominfo.com 5 2026-05-11 2026-09-08 ok
data.guide-operations.zoominfo.com 5 2026-04-16 2026-09-25 ok
content.guide-operations.zoominfo.com 2 2026-04-12 2026-09-12 ok
integrations.zoominfo.com 6 2026-06-13 2026-08-11 ok
operationsos.zoominfo.com 3 2026-03-25 2026-08-25 ok
success.zoominfo.com 5 2026-05-19 2026-08-10 ok
payments.zoominfo.com 1 2025-10-08 2025-10-08 nodata
www.payments.zoominfo.com 1 2025-10-08 2025-10-08 nodata
status.zoominfo.com 5 2026-05-24 2026-09-20 ok
chat.zoominfo.com 4 2026-03-23 2026-09-08 ok
market.zoominfo.com 12 2026-05-08 2026-09-03 ok
email.mkt.zoominfo.com 5 2026-05-28 2026-09-25 ok
engage-support.zoominfo.com 2 2026-03-03 2026-07-19 ok
podcast.zoominfo.com 2 2026-04-30 2026-04-30 nodata
trust.zoominfo.com 15 2026-04-09 2026-10-03 ok
schedule-dev.zoominfo.com 3 2025-10-01 2026-09-01 ok
api.schedule-dev.zoominfo.com 2 2025-10-01 2026-09-01 ok
uploads.schedule-dev.zoominfo.com 1 2026-01-24 2026-01-24 ok
operationsos-dev.zoominfo.com 2 2026-03-09 2026-07-25 ok
integrations-sandbox.zoominfo.com 5 2026-06-13 2026-08-12 ok
pay.zoominfo.com 3 2026-03-18 2026-09-16 ok
www.pay.zoominfo.com 3 2026-03-18 2026-09-16 nxdomain
privacy.zoominfo.com 2 2025-06-10 2026-05-11 ok
journey.zoominfo.com 2 2025-08-06 2026-07-07 ok
pathfactory.zoominfo.com 8 2026-02-01 2026-09-02 ok
try.zoominfo.com 14 2026-05-12 2026-09-07 ok
university.zoominfo.com 2 2025-08-14 2026-07-15 ok
partners-university.zoominfo.com 2 2025-06-25 2026-05-26 ok
ld-proxy.zoominfo.com 6 2026-05-16 2026-09-11 nodata
stream.ld-proxy.zoominfo.com 8 2026-05-16 2026-09-11 ok
clientstream.ld-proxy.zoominfo.com 8 2026-05-16 2026-09-11 ok
app.ld-proxy.zoominfo.com 8 2026-05-16 2026-09-11 ok
events.ld-proxy.zoominfo.com 8 2026-05-16 2026-09-11 ok

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