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Everything you need to write about PageSpeed Matters research. Our data is free to cite and embed - attribution appreciated.
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PageSpeed Matters is a website performance optimization studio that publishes original research on web speed and Core Web Vitals, built from Chrome UX Report field data across millions of real-world sites. Our data studies are free to cite and embed.
PageSpeed Matters publishes original web performance research from Chrome UX Report field data across millions of sites.
Key statistics
All figures from Chrome UX Report field data. Click any stat for the full study, methodology, and downloadable dataset.
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49.1% of the Mobile Web Passes Core Web Vitals in 2026.
49.1% of the Mobile Web Passes Core Web Vitals in 2026 -
Two-Thirds of Failing Sites Fail on Just One Metric - Usually LCP.
Two-Thirds of Failing Sites Fail on Just One Metric, Usually LCP -
The Median Web Page Weighs 2.6MB and Makes 71 Requests.
The Average Page Size Is 2.6MB, Across 71 Requests -
The Median Website Loads in 2.0 Seconds - Down From 2.7 in 2020.
The Median Page Load Time Is Now 2.0 Seconds, Down From 2.7 in 2020 -
84% of the Top 500 Sites Load Slower on Mobile.
Mobile vs Desktop Speed: 84% of the Top 500 Sites Are Slower on Mobile -
WordPress Passes Core Web Vitals Least Often of Any Major CMS at 38.4%.
WordPress Passes Core Web Vitals Least Often of Any Major CMS, at 38.4% -
Only 38.4% of WordPress Sites Pass Core Web Vitals.
Only 38.4% of WordPress Sites Pass Core Web Vitals -
The Average Page Loads 375KB of Third-Party JavaScript.
The Average Website Loads 375KB of Third-Party JavaScript -
Government and Healthcare Pass 78.9%. Tech and SaaS Passes 10%.
Website Speed by Industry: Government Passes 78.9%, Tech and SaaS 10% -
React 37.1%, Vue 33.7%, Angular 33.6% - Alpine.js Beats Them All at 56.3%.
The Fastest JavaScript Framework Isn't React, Vue or Angular - Alpine.js Passes 56.3% -
Sweden Passes 70.8%. Nigeria Passes 7.8%.
Website Speed by Country: Sweden Passes 70.8%, Nigeria 7.8% -
Pantheon Passes Core Web Vitals Twice as Often as Bluehost.
Web Hosting Speed Compared: Pantheon Passes 61.2%, Bluehost 30.4%
Charts & embeds
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