Speed Index

Speed Index is a metric that measures how quickly the content on a webpage becomes visible to users. It calculates the average time it takes for visible parts of the page to load from the moment a user initiates loading the site. A lower Speed Index indicates a faster-loading page that appears more quickly, improving user experience and engagement. Essentially, it helps website owners understand how swiftly their content becomes accessible, allowing them to optimize performance and reduce user frustration caused by slow-loading pages.