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25 Important Core Web Vitals Statistics

Introduction:

Are you curious about what it takes to pass a Core Web Vitals assessment? 

Or how well your website (or industry as a whole) is prepared for the June 2021 Core Algorithm Update

This curated list of the latest Core Web Vitals statistics has all of the information you need, and will be updated as more information becomes available. 

Largest Contentful Paint Statistics

  1. 25%. Largest Contentful Paint accounts for 25% of your Google Lighthouse Performance Score.
  1. 2.5 seconds. Aim for a Largest Contentful Paint under 2.5 seconds.
  1. 43% and 44%. 43% of mobile URLs and 44% of desktop URLs pass the Largest Contentful Paint benchmark of 2.5 seconds.
  1. 7.05. According to research, the average B2B website has a mobile Largest Contentful Paint score of 7.05s, well above the 2.5s score needed to receive a passing grade.
  1. 9.17. According to research, the average retail website has a mobile Largest Contentful Paint score of 9.17s, well above the 2.5s score needed to receive a passing grade.

First Input Delay Statistics

  1. 25%. First Input Delay (Total Blocking Time) accounts for 25% of your Google Lighthouse Performance Score.
  1. 100 milliseconds. Aim for a First Input Delay under 100 milliseconds
  1. 89% and 99%. 89% of mobile URLs and 99% of desktop URLs meet the 100 millisecond First Input Delay benchmark.

Cumulative Layout Shift Statistics

  1. 5%. Cumulative Layout Shift accounts for 5% of your Google Lighthouse Performance Score. 
  1. .1. Aim for a Cumulative Layout Shift under .1.
  1. 46% and 47%. In this research, 46% of mobile URLs and 47% of desktop URLs pass the Cumulative Layout Shift benchmark of .1. 

General Core Web Vitals Statistics

  1. 75th percentile. A web page only passes the Core Web Vitals assessment if it meets the recommended targets at the 75th percentile for all 3 metrics.
  1. 28 days. When a change is made to improve Google Core Web Vitals, it will be at least 28 days before that change is picked up by Google’s testing tools.
  1. 12%. According to this research, only 12% of mobile sites are optimized to pass the Core Web Vitals assessment right now.
  1. 13%. According to this research, only 13% of desktop sites are optimized to pass the Core Web Vitals assessment right now.
  1. 84%. According to this research, 84% of the URLs ranking in the top-10 of US mobile SERPs scored with “needs improvement” or “poor”.
  1. 10%. URLs in position 1 are 10% more likely to pass a Core Web Vitals assessment than URLs in position 9. 
  1. 2%. From position 1 to position 5, there’s a 2% decrease in pass rate of the Core Web Vitals assessment for each position. 
  1. 10% and 11%. From position 5 to position 9, there’s a 10% decrease in likeliness on mobile and an 11% decrease in likeliness on desktop to pass a Core Web Vitals assessment.

Industry Core Web Vitals Statistics

  1. 22 and 24%. Users are 22% less likely to bounce on news sites and 24% less likely to bounce on shopping sites when a page meets all the Core Web Vitals thresholds.
  1. 24%. According to this research, 24% of URLs in the finance sector would receive a ranking boost from passing the Core Web Vitals assessment.
  1. 13%. According to this research, 13% of URLs in the B2B sector would receive a ranking boost from passing the Core Web Vitals assessment. 
  1. 5%. According to this research, 5% of URLs in the education sector would receive a ranking boost from passing the Core Web Vitals assessment.
  1. 87%. A study of 6,500 US Ecommerce sites revealed that 87% would fail a Core Web Vitals assessment today. 30% would pass for Cumulative Layout Shift, 38% would pass for Largest Contentful Paint, and 93% would pass First Input Delay.
  1. 32%. According to this research, only 32% of US websites would pass a Core Web Vitals assessment right now.