Lighthouse Chrome Extension

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Another way to view the new metrics is with the Lighthouse Chrome extension.

The way to use it is to navigate to any page and a square box in the top right hand side of the browser will turn red or green depending on whether the page passes the Core Web Vitals metrics.

Clicking on the box itself triggers a jordan mobile database visualization of the CWV and experimental metrics.

Screenshot of Chrome Lighthouse Extension


New metrics available in third-party tools
The many page speed tools that use Lighthouse in their analysis will also display INP and TTFB metrics.

For example, WebPageTest.org now displays the new metrics.

Screenshot of WebPageTest Lighthouse results


Page speed information updates
There are also additional updates to the PageSpeed ​​Insights tool.

A notable change is the speed at which results are displayed, which is achieved by loading field and laboratory data in parallel.

Another change is that PageSpeed ​​Insights will attempt to resolve HTTP redirects first before sending it to Lighthouse for analysis. Previously, Lighthouse handled HTTP redirects while performing the analysis.

In addition to two additional changes:

“Core Web Vitals (CWV) metrics (LCP, FID, CLS) appear directly below the CWV score.

We adjusted the layout, reducing verbosity and vertical space.”