duolingo.com source code
The homepage of duolingo.com is 11.0 KB of HTML built with Google Tag Manager, OneTrust, Cloudflare. Its security headers get a D. We last checked it on 2026-10-27.
| Address | https://www.duolingo.com/ |
|---|---|
| Status | 200 after 1 redirect |
| Title | Duolingo |
| Description | Duolingo is the world's most popular way to learn a language. It's 100% free, fun and science-based. Practice online on duolingo.com or on the apps! |
| Built with | Google Tag Manager, OneTrust, Cloudflare, Amazon CloudFront |
| Scripts | 9 external, 5 inline |
| Stylesheets | 2 |
| Security headers | D · see the headers |
The first lines of its HTML
<!doctype html>
<html dir="ltr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
<meta name="robots" content="NOODP">
<noscript>
<meta http-equiv="refresh" content="0; url=/nojs/splash">
</noscript>
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="apple-mobile-web-app-title" content="Duolingo">
<meta name="google" content="notranslate">
<meta name="mobile-web-app-capable" content="yes">
<meta name="apple-itunes-app" content="app-id=570060128">
<meta name="facebook-domain-verification" content="mwudgypvvgl4fekxjk5rpk3eqg7ykt">
<link rel="apple-touch-icon" href="https://d35aaqx5ub95lt.cloudfront.net/images/duolingo-touch-icon2.png">
<link rel="icon" href="https://d35aaqx5ub95lt.cloudfront.net/favicon.ico">
<script src="https://cdn.cookielaw.org/scripttemplates/otSDKStub.js" data-document-language="true" charset="UTF-8" data-domain-script="55a7f100-001e-4085-87…
</script>
<script>
function OptanonWrapper(){}
</script>
<script>
const MINIPROGRAM_APPIDS=["wx2a212470bade49bf","2017090708602953","wx25f982a55e60a540"];if(!MINIPROGRAM_APPIDS.some((e=>-1!==navigator.userAgent.indexOf(e…
</script>
<link rel="manifest" href="/manifest.json">
<meta name="twitter:image" content="https://www.duolingo.com/images/facebook/duo200.png" />
<meta name="twitter:card" content="summary" />
<meta name="twitter:site" content="@duolingo" />All the code · Meta tags and report · Response headers · What changed