FREE TOOL
Page speed test
Runs Google Lighthouse on any page and shows its scores, Core Web Vitals and the fixes that will cut load time the most.
Lab metrics
Real visitors (last 28 days)
What to fix first
This tool sends a request to our checking server. Addresses and files are processed on the spot and never stored.
WHAT IT DOES
About this tool
Check how fast a page loads on mobile and desktop with Google Lighthouse. You get performance, SEO and accessibility scores, Core Web Vitals and a list of what to fix first.
The check runs on our server: we send only the address or file you entered and show the result right away. Nothing is stored.
QUESTIONS
Frequently asked questions
What are Core Web Vitals?
Three Google metrics for page experience: Largest Contentful Paint (how fast the main content appears, good: under 2.5 s), Interaction to Next Paint (how fast the page responds, good: under 200 ms) and Cumulative Layout Shift (how much things jump around, good: under 0.1).
Why is my score different every time?
Lab tests run on a simulated device and network, so results shift a little from run to run because of server response time, ads and third-party scripts. Look at trends and specific issues rather than a single number.
What's the difference between lab and field data?
Lab data comes from this single test. Field data comes from real Chrome users over the last 28 days, and that is what Google uses for rankings. Field data only shows up for pages with enough visitors.
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