Understand why the mobile score is generally lower than desktop and discover how to optimize your site for all devices.
Mobile
Average score
Desktop
Average score
It's normal for the mobile score to be lower. Google simulates a mobile device with a slow 4G connection and limited processor.
Mobile devices have less powerful processors than computers. JavaScript takes longer to execute.
Google simulates an average 4G connection (1.6 Mbps), much slower than fiber. Resources take longer to load.
The mobile viewport is narrower. Some elements may require more reflows to adapt.
Google uses mobile-first indexing. The mobile score matters most for your SEO.
Optimal performance
Optimizations possible
Urgent action required
Clearly visualize performance on each device type
Scores retrieved via the official Google PageSpeed Insights API
LCP, INP, and CLS to understand what impacts your score
High-impact optimizations to improve your scores
Run a free audit to find out your mobile and desktop scores and discover possible optimizations.
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