Why Is My Website Slow?
Fill in what you know from a speed test. The tool ranks the most likely causes and links to the fix.
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Frequently asked questions
What is a good TTFB?
Under 800 ms is considered good by Google. Slower than that usually points at hosting, caching or backend work.
What is a good LCP?
Largest Contentful Paint should be 2.5 seconds or less. Above 4 seconds is rated poor.
Where do I get these numbers?
Run the Website Speed Test on this site, or use PageSpeed Insights or your browser developer tools.