Evolving the CLS metric
Plans for improving the CLS metric to be more fair to long-lived pages.
Debug performance in the field
Learn how to attribute your performance data with debug information to help you identify and fix real-user issues with analytics
Best practices for cookie notices
Optimize cookie notices for performance and usability.
Lowe's website is among fastest performing e-commerce websites
By building an automated performance testing and monitoring system, the Lowe's Site Speed Team test pull requests against performance budgets, and prevent performance regressions going into production.
Vodafone: A 31% improvement in LCP increased sales by 8%
By running an A/B test specifically focused on optimizing Web Vitals, Vodafone found that a 31% improvement in LCP led to 8% more sales, a 15% improvement in their lead to visit rate, and a 11% improvement in their cart to visit rate.
Debug layout shifts
Learn how to identify and fix layout shifts.
How Wix improved website performance by evolving their infrastructure
A case study of some major changes introduced at Wix to improve website loading performance for millions of sites, clearing the path for them to receive good PageSpeed Insights and Core Web Vitals scores.
How CLS optimizations increased Yahoo! JAPAN News's page views per session by 15%
Optimizing CLS by 0.2 led to a 15% increase in page views per session, 13% longer session durations, and a 1.72 percentage point decrease in bounce rate.
Agrofy: A 70% improvement in LCP correlated to a 76% reduction in load abandonment
By using real user monitoring tools and focusing on improving Core Web Vitals in refactoring their app, they also improved CLS by 72%, as well as application responsiveness.
Best practices for carousels
Optimize carousels for performance and usability.
Feedback wanted: The road to a better layout shift metric for long-lived pages
Learn about our plans for improving the Cumulative Layout Shift metric and give us feedback.
Back/forward cache
Optimize your pages for instant loads when using the browser's back and forward buttons.
NDTV achieved a 55% improvement in LCP by optimizing for Core Web Vitals
NDTV enhanced user experience and thus retention by optimizing for Web Vitals.
How focusing on web performance improved Tokopedia's click-through rate by 35%
Creating a web performance dashboard and optimizing JavaScript, resources, and the homepage to achieve business success.
How Mercado Libre optimized for Web Vitals (TBT/FID)
Optimizing interactivity of product details pages for a 90% reduction in Max Potential FID in Lighthouse and a 9% improvement in FID in Chrome User Experience Report.
Relating site speed and business metrics
Leverage A/B testing to evaluate the impact of site speed on your business metrics.
web.dev LIVE wrap-up
A summary of the major news and updates that were announced during our 3-day online community event, and a reminder about upcoming regional events.
Web developer tools for debugging JavaScript issues in Google Search
How to debug SEO issues on individual pages or across an entire site.
Tools to measure Core Web Vitals
Your favorite developer tools can now measure the Core Web Vitals.
Best practices for measuring Web Vitals in the field
How to measure Web Vitals with your current analytics tool.
Defining the Core Web Vitals metrics thresholds
The research and methodology behind Core Web Vitals thresholds
Optimize Largest Contentful Paint
A step-by-step guide on how to break down LCP and identify key areas to improve.
Optimize Cumulative Layout Shift
Learn how to avoid sudden layout shifts to improve user-experience