Our great sponsors
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Lighthouse reports on Lab Data which means the scores may change each time depending on network conditions, so do remember to run it a few times before finalising any solutions.
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webpack-bundle-analyzer
Webpack plugin and CLI utility that represents bundle content as convenient interactive zoomable treemap
One of the first tools that I started using is webpack-bundle-analyzer. It generates a report of the output of your webpack build which visualises the filesize of your JavaScript files and what libraries are included in each file. Here is an example screenshot:
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
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This is a great place to start. Run it on your own websites to get familiar with some of the suggestions reported and use them to explore many other techniques in improving performance. The suggestions also link to web.dev articles that go in details on why these suggestions are listed.
