Reduce server response times | Lighthouse | Chrome for Developers
The Opportunities section of your Lighthouse report reports server response time—the time that it takes for a user's browser to receive the first byte of page content, after making the request: Slow server response times affect performance This audit fails when the browser waits more than 600 ms for the server to respond to the main document request. Users dislike when pages take a long time to lo
Overview of CrUX | Chrome UX Report | Chrome for Developers
The Chrome User Experience Report (also known as the Chrome UX Report, or CrUX for short) is a dataset that reflects how real-world Chrome users experience popular destinations on the web. CrUX is the official dataset of the Web Vitals program. All user-centric Core Web Vitals metrics are represented. CrUX data is collected from real browsers around the world, based on certain browser options whic
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Browser errors were logged to the console | Lighthouse | Chrome for Developers
Uses document.write() | Lighthouse | Chrome for Developers
Largest Contentful Paint | Lighthouse | Chrome for Developers
Avoid chaining critical requests | Lighthouse | Chrome for Developers
Ensure text remains visible during webfont load | Lighthouse | Chrome for Developers