Subdomain Finder

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[13-11-2026 22:33 UTC] Update: We're currently maintaining our nodes. The service may be temporarily unstable for the next hour.

Result of duolingo.com


Scan date 2026-11-07 11:20:44
Domain Country: Worldwide (COM)
Subdomains found: 193
Most used IP: 23.23.154.167 (10x)
Whois Check Check Status Download JSON Download CSV Copy to clipboard
Subdomain IP Cloudflare
ai.duolingo.com 23.23.154.167
artifacts.duolingo.com 98.80.23.16
bazel-cache-proxy.client-platform.duolingo.com 98.80.23.16
blog.duolingo.com 151.101.3.7
blog.englishtest.duolingo.com 151.101.3.7
buildinghub-stage-2.duolingo.com 32.194.48.39
buildinghub-stage-2.internal.duolingo.com 10.0.144.106
buildinghub-stage-3.duolingo.com 3.230.101.184
buildinghub-stage-3.internal.duolingo.com 10.0.25.97
buildinghub-stage.duolingo.com 34.200.127.105
buildinghub-stage.internal.duolingo.com 10.0.145.30
buildinghub.duolingo.com 52.44.68.137
buildinghub.internal.duolingo.com 10.0.88.113
cefr-tool-api.duolingo.com 54.145.254.154
cefr-tool.duolingo.com 54.211.119.99
cefr.duolingo.com 54.211.119.99
circle.duolingo.com 76.76.21.164
client-platform.duolingo.com 52.44.185.69
delphi.duolingo.com 66.33.60.194
dev-cluster-1.k8s.duolingo.com 98.80.23.16
dev-cluster-2.k8s.duolingo.com 52.44.185.69
develocity.pe.duolingo.com 54.211.119.99
drv.develocity.pe.duolingo.com 52.44.185.69
duocon.duolingo.com 52.222.169.13
email.careers.duolingo.com 54.211.119.99
email.events.duolingo.com 23.23.154.167
employee-tools.duolingo.com 54.145.254.154
englishtest-desktop.duolingo.com 100.30.54.154
englishtest-stage-7.duolingo.com 54.145.254.154
englishtest.duolingo.com 174.129.239.226
forum-api-cf.duolingo.com 54.145.254.154
forum-api.duolingo.com 52.44.185.69
forum-cf-stage-2.duolingo.com 52.44.185.69
forum-cf.duolingo.com 23.23.154.167
forum.duolingo.com 52.7.99.164
fowllanguage.duolingo.com 167.235.200.83
gear.duolingo.com 23.23.154.167
go.duolingo.com 52.54.96.194
gpn.duolingo.com 199.60.103.2
grafana-cloud-obsv-test.duolingo.com 104.18.12.97
grafana-cloud-us-central-azure.duolingo.com 34.226.72.155
grafana-cloud-us-east-gcp.duolingo.com 34.226.72.155
grafana-cloud-us-east-oh.duolingo.com 52.44.185.69
grafana-cloud.duolingo.com 52.44.185.69
grafana-us-central-azure.duolingo.com 104.18.12.97
grafana-us-east-gcp.duolingo.com 104.18.12.97
grafana-us-east-oh.duolingo.com 104.18.12.97
grafana.duolingo.com 104.18.12.97
infra-cicd-events-write-gateway-prod.duolingo.com 44.205.241.182
infra-cicd-events-write-gateway-stage.duolingo.com 34.227.41.201
infra-eks-argo-cd-webhooks.infra-eks-dev.duolingo.com 52.201.209.63
investors.duolingo.com 96.16.248.149
ios-buildserver-a.duolingo.com 54.211.119.99
ios-buildserver-b.duolingo.com 98.80.23.16
ios-buildserver-c.duolingo.com 98.80.23.16
ios-buildserver-d.duolingo.com 34.226.72.155
ios-buildserver-e.duolingo.com 34.226.72.155
ios-buildserver-f.duolingo.com 34.226.72.155
jenkins-ci.duolingo.com 100.25.59.11
kubeflow-stage.duolingo.com 54.145.254.154
making.duolingo.com 34.226.72.155
nac.duolingo.com 34.198.109.46
newsletter.duolingo.com 54.145.254.154
obsv-dev-1.k8s.duolingo.com 54.145.254.154
obsv-prod-1.k8s.duolingo.com 23.23.154.167
obsv-prod.pe.duolingo.com 52.44.185.69
obsv-stage-1.k8s.duolingo.com 34.226.72.155
obsv-stage.pe.duolingo.com 23.23.154.167
okta.duolingo.com 52.223.7.86
pe.duolingo.com 54.145.254.154
podcast.duolingo.com 185.199.108.153
prod-cluster-1.k8s.duolingo.com 52.44.185.69
prod-cluster-2.k8s.duolingo.com 52.44.185.69
prod-cluster-3.k8s.duolingo.com 98.80.23.16
prod-cluster-4.k8s.duolingo.com 54.211.119.99
prod.artifacts.duolingo.com 98.95.235.154
push.duolingo.com 18.245.199.113
qr-gpn.duolingo.com 207.154.198.165
research.duolingo.com 185.199.108.153
sharedtask.duolingo.com 185.199.110.153
stage-cluster-1.k8s.duolingo.com 98.80.23.16
stage-cluster-2.k8s.duolingo.com 23.23.154.167
status.duolingo.com 143.204.194.52
store-asia.duolingo.com 104.18.217.221
store-eu.duolingo.com 23.227.38.65
store.duolingo.com 23.227.38.74
support.duolingo.com 44.216.49.53
survey.englishtest.duolingo.com 34.111.179.208
test-forum-cf.duolingo.com 54.145.254.154
trust.englishtest.duolingo.com 104.18.26.175
unity-license-server.client-platform.duolingo.com 34.226.72.155
university.duolingo.com 23.23.154.167
wingctl-api.infra-eks-dev.duolingo.com 54.144.48.168
wingctl-api.k8s.duolingo.com 35.153.30.177
wingctl-api.platform-api-dev.duolingo.com 98.82.218.142
www.englishtest.duolingo.com 100.30.54.154
www.nac.duolingo.com 23.23.154.167
www.podcast.duolingo.com 185.199.108.153
www.push.duolingo.com 18.245.199.92
www.support.duolingo.com 23.23.154.167
alan-dev-1.infra-eks-dev.duolingo.com none
alan-dev-2.infra-eks-dev.duolingo.com none
alan-dev-3.infra-eks-dev.duolingo.com none
alan-dev-4.infra-eks-dev.duolingo.com none
alan-dev-5.infra-eks-dev.duolingo.com none
alan-dev-6.infra-eks-dev.duolingo.com none
ca-prod-1.cloud-agents.duolingo.com none
checkout.englishtest.duolingo.com none
cluster-1.infra-eks-stage.duolingo.com none
cluster-2.infra-eks-stage.duolingo.com none
creston-dev-1.creston.infra-eks-dev.duolingo.com none
creston-dev-1.infra-eks-dev.duolingo.com none
creston-dev-2.creston.infra-eks-dev.duolingo.com none
creston-dev-2.infra-eks-dev.duolingo.com none
det-dev-1.det-stage-eks.duolingo.com none
det-eks.duolingo.com none
det-prod-1.det-eks.duolingo.com none
det-stage-1.det-stage-eks.duolingo.com none
det-stage-eks.duolingo.com none
dev-cluster-1.china-main.duolingo.com none
dev-cluster-1.infra-eks-dev.duolingo.com none
dev.duolingo.com none
emma-dev-1.infra-eks-dev.duolingo.com none
emma-dev-2.infra-eks-dev.duolingo.com none
emma-dev-3.infra-eks-dev.duolingo.com none
estrat-dev-1.infra-eks-dev.duolingo.com none
events.duolingo.com none
experimental-dev-1.infra-eks-dev.duolingo.com none
experimental-dev-2.infra-eks-dev.duolingo.com none
fallout-prod-1.fallout.duolingo.com none
franka-dev-1.infra-eks-dev.duolingo.com none
franka-dev-2.infra-eks-dev.duolingo.com none
franka-dev.infra-eks-dev.duolingo.com none
guadalupe-dev-1.infra-eks-dev.duolingo.com none
harrison-dev-1.infra-eks-dev.duolingo.com none
harrison-dev-2.infra-eks-dev.duolingo.com none
infra-ack-dev.duolingo.com none
infra-eks-dev.duolingo.com none
infra-eks-stage.duolingo.com none
internal-dev-1.infra-eks-dev.duolingo.com none
internal-dev-2.infra-eks-dev.duolingo.com none
internal.duolingo.com none
jbush-dev-1.infra-eks-dev.duolingo.com none
kanalu-dev-1.infra-eks-dev.duolingo.com none
kellermann-dev-1.infra-eks-dev.duolingo.com none
kellermann-dev.infra-eks-dev.duolingo.com none
kenny-dev-1.infra-eks-dev.duolingo.com none
leo-dev-2-1.infra-eks-dev.duolingo.com none
leo-dev-2.infra-eks-dev.duolingo.com none
leo-dev-3.infra-eks-dev.duolingo.com none
llm-gateway-eks.duolingo.com none
llm-gateway-prod-1.llm-gateway-eks.duolingo.com none
management-dev-1.infra-eks-dev.duolingo.com none
noyama-dev-1.infra-eks-dev.duolingo.com none
observability-stage.duolingo.com none
observability.duolingo.com none
obsv-prod-1.observability.duolingo.com none
obsv-stage-1.observability-stage.duolingo.com none
plat-api.platform-api.duolingo.com none
platform-api-dev-1.platform-api-dev.duolingo.com none
platform-api-dev.duolingo.com none
platform-api-prod-1.platform-api.duolingo.com none
platform-work-dev.platform-api-dev.duolingo.com none
platform-work-prod.platform-api-dev.duolingo.com none
platform-work-stage.platform-api-dev.duolingo.com none
prod-cluster-1.china-main.duolingo.com none
qing-dev-1.infra-eks-dev.duolingo.com none
sec-prod-1.security.duolingo.com none
sec-stage-1.security-stage.duolingo.com none
speech-proc-eks.duolingo.com none
speech-proc-prod-1.speech-proc-eks.duolingo.com none
stage-cluster-1.china-main.duolingo.com none
stage-cluster-1.infra-eks-stage.duolingo.com none
stage-cluster-2.infra-eks-stage.duolingo.com none
stage-cluster-3.infra-eks-stage.duolingo.com none
test.infra-ack-dev.duolingo.com none
tmac-dev-1.infra-eks-dev.duolingo.com none
vdev-refactor.infra-eks-dev.duolingo.com none
vdev2.infra-eks-dev.duolingo.com none
video-call-eks.duolingo.com none
video-call-prod-1.video-call-eks.duolingo.com none
video-call-stage-1.video-call-eks.duolingo.com none
vitor-dev-1.infra-eks-dev.duolingo.com none
vitor-dev-2.infra-eks-dev.duolingo.com none
vitor-dev-3.infra-eks-dev.duolingo.com none
vpc.duolingo.com none
william-dev-1.infra-eks-dev.duolingo.com none
www.checkout.englishtest.duolingo.com none
yangyang-dev-1.infra-eks-dev.duolingo.com none
yangyang-dev-2.infra-ack-dev.duolingo.com none
yangyang-dev-2.infra-eks-dev.duolingo.com none
yangyang-dev.infra-ack-dev.duolingo.com none
zhihao-dev-1.infra-eks-dev.duolingo.com none
Show 93 subdomains without IP
IP Count
23.23.154.16710
52.44.185.6910
54.145.254.1549
34.226.72.1558
98.80.23.167
54.211.119.996
104.18.12.975
185.199.108.1533
151.101.3.72
100.30.54.1542
174.129.239.2261

More scans of duolingo.com

Performing a scan might take up to 1 minute. So please be patient while we're scanning. After a subdomain has been scanned, we will store the data in our cache for 7 days.

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