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There are many online testing tools that can help optimize the speed of a website. Some of the popular ones include:
These tools analyze a website’s performance and provide detailed reports and recommendations for improvement. By using these tools, website owners can identify performance bottlenecks and make necessary optimizations to improve the overall speed and user experience of their website.
You can also use Lighthouse with Google Chrome to run tests in your browser.
PageSpeed Insights chooses the server location for the test based on the current location of the user. There are four server locations: Oregon, South Carolina, Netherlands, and Taiwan.
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When comparing GTMetrix and PageSpeed Insights results, it’s important to consider that by default, GTMetrix uses unthrottled CPU and bandwidth, while PageSpeed Insights throttles CPU and bandwidth for mobile tests.
Additionally, differences in the Lighthouse version used, and the physical location can also affect the results. Taking all of these factors into account can help provide a more accurate picture of a website’s speed and help with optimizing its performance.
Lab Data for web vitals is collected in a controlled environment using emulated network and device conditions, while Field Data is collected from real users in real-world conditions. Lab Data is useful for debugging and optimization, while field data provides insights into the user experience.
Field data is a ranking factor for SEO, while lab data does not directly impact rankings, nor user experience
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