First Input Delay – FID FID measures the latency between the user’s first interaction with a page and the web page actually responding to that interaction. FID is most often affected by long execution times of large scripts, so try to minimize this as much as possible. A website will pass the FID rating if its FID is less than 100 milliseconds. Start by running the homepage and most important web pages test using Google PageSpeed Insights.
Here are some areas to look at to audit this signal
Optimize your JavaScript By removing unnecessary parts of scripts (or entire scripts), you can reduce the time Switzerland Email List spent running and rendering these files. Opportunities to watch. Minimize JavaScript. Remove unused JavaScript Reduce the number of third-party scripts used By removing unnecessary plugins or unused scripts, you’ll have less data to transfer and fewer assets to render. You can review the total number of third-party resources. Used on a page in the Details Overview – Lower PageSpeed tab. Is busy rendering the main thread, user interactions will be delayed until this is complete. If you reduce the execution time of the main thread, user interactions will be more responsive and immediate.
Opportunities to watch: Minimize main thread
Work Reduce JavaScript execution time Reduce the number and size of resources Each resource needed for a page Hong Kong lead will take time to request, download, and execute. By reducing both the number of requests needed and the total download size, you will speed up page execution. Opportunities to watch. Reduce CSS Minimize JavaScript Remove unused CSS Remove unused JavaScript Enable text compression Cumulative Layout Shift – CLS . The Cumulative Layout Shift metric relates to the visual stability of a website. CLS measures how visible content moves in the window and how the distance between elements affected by these changes changes.