1/15/2024 0 Comments Reduce javascript execution timeBy removing unused JavaScript and CSS, you will essentially be trimming their files sizes which reduces their execution time. ![]() Page builders, plugins, and other things might be loading JavaScript files across your entire WordPress site when they’re only being used in a few places. You should also look at your third-party code report which we’ll get into in the 3rd tip. Your report should help narrow down where your heaviest JavaScript files are coming from. The first step to reducing JavaScript execution time is to open your PageSpeed Insights report and learn which files take a long time to execute. Google Fonts, Google Analytics, and Tag Manager can all be hosted locally while other third-party JavaScript can be delayed using plugins like WP Rocket or Flying Scripts. Long JavaScript execution times can also come from third-party code. Many of these optimizations can be done using caching plugins, Autoptimize, and Async JavaScript. You can reduce JavaScript execution time by removing unused JavaScript using an asset unloading plugin as well as minifying, combining, deferring, and delaying JavaScript files. ![]() If you want to reduce JavaScript execution time in WordPress, you’ll need to find heavy JavaScript files in PageSpeed Insights (or Lighthouse) and optimize them.
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