Overall pass rate May 2023 Websites passing all 3 web vitals 6.97% Websites checked last month 11.7k More trends
Visual stability Measured by Cumulative Layout Shift (CLS) May 2023 Percent of all websites rated “good” 66.29% Websites checked last month 11.7k Cumulative layout shift is a measure of how much a webpage jumps around. What is Cumulative Layout Shift? More trends
Input delay Measured by Total Blocking Time (TBT) May 2023 Percent of all websites rated “good” 47.6% Websites checked last month 11.7k The Total Blocking Time (TBT) metric measures the total amount of time between First Contentful Paint (FCP) and Time to Interactive (TTI) where the main thread was blocked for long enough to prevent input responsiveness. What is Total Blocking Time? More trends
Loading speed Measured by Largest Contentful Paint (LCP) May 2023 Percent of all websites rated “good” 9.02% Websites checked last month 11.7k The Largest Contentful Paint (LCP) metric reports the render time of the largest image or text block visible within the viewport, relative to when the page first started loading. What is Largest Contentful Paint? More trends