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What impact do Chrome extensions have on browser performance? I tested 1000 popular extensions to find out.
A thread looking at the main findings below👇
2/ Let's look at the 100 most popular Chrome extensions first.
Evernote and Grammarly both add over 500ms of CPU processing time to every page you open in the browser.
Lots of extension are loading over 1MB of JavaScript.
Wondering why the field and lab data on PageSpeed Insights often don't match?
I wrote an article explaining the different contexts in which the metrics are collected ⬇️
Can you get perfect Core Web Vitals without making your site any faster?
This article explores how the metrics are defined and whether there are any loopholes.
The Chrome User Experience Report tells you how real users experience your website. It also powers the Core Web Vitals data that Google uses as a ranking signal.
This article explains how CrUX data is collected and how you can work with it.
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