According to a recent study, only a few websites passed a Core Web Vitals assessment withing PageSpeed Insights. In this survey, 2500 keywords and 20,000 URLs were examined. This resulted in 12% of mobile and 13% of desktop results cleared the exam.

Benchmark for Each Core Web Vitals:

Largest Contentful Paint (LCP): measures loading performance. To provide good user experience, LCP should occur within 2.5 seconds of when the page first starts loading.

First Input Delay (FID): measures interactivity. To provide a good user experience, pages should have an FID of less than 100 milliseconds.

Cumulative Layout Shift (CLS): measures visual stability. To provide a good user experience, pages should maintain a CLS of less than 0.1.

Recommendation – Google Encountered A Massive Glitch That Impacted Search Quality Negatively

Sites Measuring by Other Two Web Vitals

  • LCP: 43% of mobile and 44% of desktop URLs pass the assessment
  • CLS: 46% of mobile and 47% of desktop URLs pass the assessment

For searchers,  it will take 2.5 seconds on the page they will land. The main reason for the Core Web Vitals test is to provide the best user experience.

Search Rankings Impact

The survey showed that URL ranking at 1 has more likely to clear the test. This is 10% more than the URL position at 9. The pass rate is 19% on mobile and 20% on desktop. The pass rate decreases by 2% for each position from 1 to 5.

Search Rankings Impact
Image Source – Screaming Frog

Screaming Frog Stated:

“A major part of the CWV assessment focuses on load speed, which we know is already a ranking factor. Therefore, logic would suggest that quicker sites may rank slightly higher and end up passing the assessment in turn.

However, Google continually comments that speed is a minor factor. Instead, I suspect sites ranking in the first 1-4 positions tend to be better optimised overall. With targeted, rich, and user-friendly content. All while loading this information more efficiently.”

Ranking Factor

Core Web Vitals will not be included in the Ranking Factor till 2021, so site owners can grab a lot from these studies. However, Google has given a lot of time to SEOs and site owners to prepare for the update which is a very good and friendly step.


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