I recently noticed that Google updated the PageSpeed Insight report page. There is an "Origin Summary".
What does it exactly mean? Why it's slightly different than the field data?
Origin Summary: Users can click on the Show Origin Summary checkbox to view the aggregated score for the metrics for all pages served from the same origin over the last 28 days. Lab Data: Lab performance score, calculated using Lighthouse, helps debug performance issues, as it is collected in a controlled environment.
It's Simple to Use Visit the Google PageSpeed Insights page. Input your web page URL. Click Analyze.
Performance score A score of 90 or above is considered good. 50 to 90 is a score that needs improvement, and below 50 is considered poor.
Yes, Google PageSpeed Insights is now pretty reliable and accurate when measuring the full user experience on your site. Thanks to the different metrics included, it gives you an accurate overview of how users interact with your site.
If the page you are testing has enough visitors you will see your "field data". That is real world performance for that page
The origin summary is real world performance data for all pages on the domain where there is enough data.
Basically it is page performance (Field Data) vs site performance as a whole (Origin Summary).
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