What duolingo.cn is built with
Read on 2026-10-28 14:59. 8 technologies spotted.
| Technology | Category | Version | Confidence | Tell |
|---|---|---|---|---|
| DigiCert | SSL/TLS certificate authorities | 100% | certIssuer: DigiCert Inc, GeoTrust TLS RSA CA G1 | |
| Envoy | Reverse proxies | 100% | headers x-envoy-upstream-service-time: 8 | |
| Google Tag Manager | Tag managers | 100% | html: me src="https://www.googletagmanager.com/ns.html?id=GTM-TX6Z97C" height="0" width="0" style="display:none;visibility:hid | |
| HSTS | Security | 100% | headers strict-transport-security: max-age=31536000 | |
| OneTrust | Cookie compliance | 100% | scriptSrc: https://cdn.cookielaw.org/scripttemplates/otSDKStub.js | |
| Open Graph | Miscellaneous | 100% | dom meta[property*='og:']: <meta property="og:type" content="website" > | |
| PWA | Miscellaneous | 100% | dom link[rel='manifest']: <link rel="manifest" href="/manifest.json"> | |
| React | JavaScript frameworks | 100% | html: ，还免费！ @duolingo" /><meta name="twitter:description" content="做游戏，学语言。免费、有趣、超有效。" data-react-helmet="true" data-rh="true |
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