Understand the 6 Core Web Vital Metrics

  1. FIRST CONTENTFUL PAINT marks the time at which the first text or image is painted.

2. SPEED INDEX shows how quickly the contents of a page are visibly populated.

3. TIME TO INTERACTIVE is the amount of time it takes for the page to become fully interactive.

4. LARGEST CONTENTFUL PAINT marks the time at which the largest text or image is painted.