Web Vitals Lab Test
First Contentful Paint
First Contentful Paint marks the time at which the first text or image is painted.
Speed Index shows how quickly the contents of a page are visibly populated.
Time to Interactive
Time to interactive is the amount of time it takes for the page to become fully interactive.
Total Blocking Time
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms.
Largest Contentful Paint
Largest Contentful Paint marks the time at which the largest text or image is painted.
Cumulative Layout Shift
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint Element