Site Speed Comparison
Compare mobile page speed metrics side by side for 2-5 websites. Powered by Google PageSpeed Insights.
How It Works
Enter 2-5 URLs
Paste the URLs of the pages you want to compare, one per line.
We run Lighthouse tests
Each URL is tested on mobile via Google PageSpeed Insights for real performance data.
Compare results
View a side-by-side table highlighting scores and the best value per metric.
Frequently Asked Questions
What metrics are compared?
Performance Score, First Contentful Paint (FCP), Largest Contentful Paint (LCP), Total Blocking Time (TBT), Cumulative Layout Shift (CLS), and Speed Index.
Why only mobile?
Google uses mobile-first indexing for most sites. Mobile performance is the most impactful metric for SEO rankings.
How long does the analysis take?
Each URL takes 10-30 seconds. All URLs are tested in parallel, so 5 URLs typically finish within 30 seconds.
Do I need an API key?
No. This tool uses the public Google PageSpeed Insights API. No registration or API key needed.
What is a good Performance Score?
Scores 90-100 are good (green), 50-89 need improvement (yellow), and below 50 are poor (red).
Need help improving your site speed?
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