Google updated Lighthouse 8.0, one of the important changes is to change the weight of different speed indicators.
These changes are expected to make it easier for most websites to obtain higher page speed scores.
The cumulative layout shift score may tend to be higher, while other indicators become more stringent.
Google Lighthouse 8.0
Lighthouse is a tool that helps publishers, developers, and SEOs measure page speed and other metrics related to accessibility and SEO.
Lighthouse provides support for the online PageSpeed Insights tool and is available as a developer tool in Chrome.
The new Lighthouse version 8.0 will be released in Chrome 93, but it is now available on PageSpeed Insights.
Changes to Google Lighthouse Tool
- Performance score has been re-weighted
- Total Blocking Time (TBT) Scoring is Stricter
- First Contentful Paint (FCP) Scoring is Stricter
- Cumulative Layout Shift (CLS) Scoring is Less Strict
Before and After Lighthouse Scores
Google has released a Lighthouse score calculator that shows the differences between version 8.0, 6, and 7 and version 5. Below is a screenshot comparing the exact same Lighthouse scores between different versions (6/7 and 8.0).
Scores Before Update:
Scores After Update: