Do Google Lighthouse Scores Affect SEO? - Search Engine Journal

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Google Lighthouse is the top recommended tool for measuring Core Web Vitals and other performance metrics.

So it must affect SEO, right?

Wrong.

If the questions asked by SEOs are anything to go by, the power of Lighthouse is grossly overestimated.

Google’s John Mueller responded to one such question in the r/SEO forum on Reddit this week.

A question is asked about low performance scores in Lighthouse and whether they negatively impact organic search rankings.

The user notes they’ve managed to raise the score from 6 to 21, but there’s still a ways to go considering the top score is 100.

Fortunately for them, Lighthouse scores don’t directly impact SEO.

Further, a score of 21 might not be as bad as this person thinks.

Mueller explains why.

Google’s John Mueller On Lighthouse Scores & SEO

Mueller begins his response by pointing out that going from a score of 6 to a score of 21 is a noticeable improvement.

When visitors land on the site they’ll now have a better experience. This is a good thing even if you take SEO out of the equation.

Although Lighthouse scores are a measure of a site’s usability, Google doesn’t use it for search.

Why?

Because the score in Lighthouse is based on lab data, and Google is more concerned with the performance of a site as...



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