Tellstack

What duolingo.com is built with

Read on 2026-10-28 12:23. 26 technologies spotted.

TechnologyCategoryVersionConfidenceTell
AWS Certificate ManagerSSL/TLS certificate authorities100%certIssuer: Amazon, Amazon RSA 2048 M01
Amazon CloudFrontCDN100%headers via: ce32.cloudfront.net (CloudFront)
Amazon Route 53Hosting100%dns NS: ns-247.awsdns-30.com
Amazon SESEmail100%dns TXT: 2.70.130.33 include:amazonses.com include:_spf.google.com include:_spf.sa
Amazon Web ServicesPaaS100%dns NS: ns-247.awsdns-30.com
AnthropicArtificial Intelligence100%dns TXT: anthropic-domain-verification-z4335b=YssTBALPY7K784Sri4FjVHjd3
Apple iCloud MailWebmail100%dns TXT: apple-domain-verification=bMPI889zOgALUenN
Atlassian CloudDevelopment100%dns TXT: atlassian-sending-domain-verification=423a5faf-1cfa-4704-a38a-f7adae302dd6
DockerContainers100%dns TXT: docker-verification=b4ead4c5-fd66-42a5-a684-8f2e7f4c1417
EnvoyReverse proxies100%headers x-envoy-upstream-service-time: 7
Google Tag ManagerTag managers100%html: me src="https://www.googletagmanager.com/ns.html?id=GTM-TX6Z97C" height="0" width="0" style="display:none;visibility:hid
Google WorkspaceWebmail, Email100%dns MX: alt1.aspmx.l.google.com
HackerOneSecurity100%dns TXT: h1-domain-verification=sjPBeaGqQwEe8YhJ3W8JVNJa7WDQFAzc6AHkURoE
JamfSecurity100%dns TXT: jamf-site-verification=PT7v4LFXzCrvxzfYg30tsg
JetBrainsDevelopment100%dns TXT: jetbrains-domain-verification=bt8q7duih10l9pmf5fo5yy8wf
Microsoft 365Webmail, Email100%dns TXT: MS=ms66530579
OneTrustCookie compliance100%scriptSrc: https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
Open GraphMiscellaneous100%dom meta[property*='og:']: <meta property="og:type" content="website" >
OpenAIArtificial Intelligence100%dns TXT: openai-domain-verification=dv-A4cFxdrYIEodfG6UiQU0qxnT
PWAMiscellaneous100%dom link[rel='manifest']: <link rel="manifest" href="/manifest.json">
ReactJavaScript frameworks100%html: free @duolingo" /><meta name="twitter:description" content="Learn languages by playing a game. It's 100% free, fun, an
SalesforceCRM100%dns TXT: le.com include:_spf.salesforce.com include:mail.zendesk.com include:aspmx.
Salesforce Marketing Cloud Account EngagementMarketing automation100%dns TXT: k.com include:aspmx.pardot.com ~all
SlackMiscellaneous100%dns TXT: slack-domain-verification=iuNWYimCCkEpnistAJvWc4YOZF8izoZ23TCDek0I
StripePayment processors100%dns TXT: stripe-verification=c8d270a115adc8c5a0a84fb24e17b7d05f66aad6
ZendeskDocumentation, Issue trackers, Live chat100%dns TXT: esforce.com include:mail.zendesk.com include:aspmx.pardot.com ~all

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