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What is web performance? - Learn web development | MDN

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Web performance is all about making websites fast, including making slow processes seem fast. Does the site load quickly, allow the user to start interacting with it quickly, and offer reassuring feedback if something is taking time to load (e.g., a loading spinner)? Are scrolling and animations smooth? This article provides a brief introduction to objective, measurable web performance*, looking at what technologies, techniques, and tools are involved in web optimization. * versus subjective, perceived performance, covered in the next article Web performance is the objective measurement and perceived user experience of a website or application. This includes the following major areas: To summarize, many features impact performance including latency, application size, the number of DOM nodes, the number of resource requests made, JavaScript performance, CPU load, and more. It is important to minimize the loading and response times, and add additional features to conceal latency by makin

What is web performance? - Learn web development | MDN Skip to main content Skip to search What is web performance? Previous Overview: Web performance Next Web performance is all about making websites fast, including making slow processes seem fast. Does the site load quickly, allow the user to start interacting with it quickly, and offer reassuring feedback if something is taking time to load (e.g., a loading spinner)? Are scrolling and animations smooth? This article provides a brief introduction to objective, measurable web performance*, looking at what technologies, techniques, and tools a

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