Avoid unnecessary JavaScripts

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Web pages with a lot of JavaScript can cause tasks to compete for the attention of the main thread, which can negatively affect the responsiveness of the site.

You can use the coverage tool in Chrome lebanon phone number data DevTools to identify and remove unnecessary code from your website's sources .

By reducing the size of resources needed during loading, the website will spend less time parsing and compiling code, resulting in a smoother user experience.

Avoid large rendering updates
JavaScript isn't the only thing that can affect the responsiveness of a website. Rendering can also be expensive and interfere with a website's ability to respond to user input.

Optimizing rendering work can be complex and depends on your specific goal, but there are some ways to ensure that rendering updates are manageable and don't turn into lengthy tasks.

Google recommends the following practices:

Avoid using the requestAnimationFrame() function to perform any non-visual work.
Keep the DOM size small.
Use CSS constraints.
Conclusion
Core Web Vitals are an important metric for delivering a positive user experience and ranking in Google search results.

While all of Google's recommendations are worth implementing, this shortened list is realistic, applicable to most websites, and can have a meaningful impact.