Version 4.11: Insights, Chrome Extension, and New Branding
Website speed is best tackled when visible. Therefore, Release 4.11 introduces three innovations to showcase speed from different perspectives – a quick test with business context, visual diagnostics directly in your browser, and the continuation of the rebranding of the entire PageSpeed.ONE identity.
PageSpeed.ONE Insights — Test Your Website in a Minute
Enter a URL, and in moments, see how your site performs for real users. PageSpeed.ONE Insights combines data from the Chrome UX Report with our synthetic tests, adding something you won't find elsewhere – business recommendations and a six-week measurement history.
What can you look forward to?
- Real user data — Core Web Vitals from CrUX, covering the entire domain and specific URLs, not just a one-off lab test.
- Business recommendations — see at a glance what slows down your site and where conversion improvements lie.
- Six-week history — track trends, not just the current state. Insights automatically show how metrics evolve over time.
Core Web Vitals Live — A Chrome Extension That Pinpoints Issues
Other tools provide numbers. Core Web Vitals Live shows you exactly where the problem lies.
Our new Chrome extension displays LCP, INP, and CLS directly on the page – with visual overlays highlighting specific elements.
- HUD like in a game — colourful indicators in the corner of the screen. Green, orange, or red tell you at a glance how your page is performing.
- See the LCP element — a pulsating frame highlights the exact element that determines your Largest Contentful Paint. No more digging through DevTools.
- Real-time CLS — every layout shift appears as an overlay directly over the shifted element, complete with its score.
- INP at your cursor — after each click, a label with the response time appears at your cursor. Instantly know which interaction is slow.
The extension gathers no data and operates entirely locally. It measures using the same logic as PageSpeed Insights and Search Console – built on Google's official web-vitals library.
New PageSpeed.ONE Branding
As you're aware, PageSpeed.ONE is gradually transitioning to a new visual identity. A new logo, the Special Gothic Expanded font, and an overall fresher look that better aligns with our direction – towards a boundary-free website speed tool.
New PageSpeed.ONE Visual Identity.
The new brand by Little Brand is being gradually applied across the website, application, and all materials.
And So On
Since the last release 4.10, we've achieved:
- Added guidance for the Lighthouse Diff tool to compare two tests.
- Included a case study on Eclisse in the WordPress optimization section.
- Placed entry boxes throughout the site for quick speed testing and starting the PLUS Trial.
- Accelerated the loading of navigation and some application parts.
- Fixed numerous bugs from release 4.10, including SEO shortcomings.
- Updated monthly CrUX data for December to February.
- Improved our ability to measure app usage to identify areas for enhancement.
- Martin Michálek presented at UX Day 2026 on speed as the invisible part of UX.
The PageSpeed.ONE team thoroughly enjoys these updates and hopes they help you accelerate your websites too.
Found a bug? Have an idea? Feel free to write to us at info@pagespeed.cz.