Lighthouse changes how Performance Score is calculated

Lighthouse 6 is the first major release of the popular auditing tool since May 2019, introducing critical changes that will impact everyone relying on the scoring. Remember, the PageSpeed Score (which contributes to your SEO ranking) is the same as the Lighthouse Performance Score.

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No matter how you are using Lighthouse, whether it’s one-off tests or any continuous performance testing tool, your Performance Score will change.