Run Google PageSpeed Insights on any URL: performance score, Core Web Vitals and fixes.
Enter a URL
This tool runs Google's PageSpeed Insights test and shows the performance score, Core Web Vitals and Google's suggestions for improving them. Speed affects both rankings and sales, so test your main pages on mobile first, fix the biggest issues, then test again.
They are Google's page-experience measurements: LCP (how fast the main content appears, under 2.5 s), INP (how fast the page responds, under 200 ms) and CLS (how much the layout jumps, under 0.1).
The mobile test simulates a slower phone and network. That is closer to how many real visitors browse, so focus on improving the mobile score first.
Free tool by Blue Mint · Updated November 2026
Fast Plesk hosting managed by Blue Mint, from €4.99/month. Move your site to MyHost and stop losing visitors to slow loading.
See hosting plans