Keeping third-party scripts under control
Before optimizing third party tags, make sure that these scripts are still needed on your site.
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.
Requesting performance isolation with the Origin-Agent-Cluster header
A new HTTP response header to limit domain-wide scripting and request dedicated resources from the browser.
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.
Love your cache ❤️
Users loading your site a second time will use their HTTP cache, so make sure it works well.
Publish, ship, and install modern JavaScript for faster applications
Improve performance by turning on modern JavaScript dependencies and output.
Automating audits with AutoWebPerf
A new modular tool that enables automatic gathering of performance data from multiple sources.
Workers overview
How web workers and service workers can improve the performance of your site, and when to use a web worker versus a service worker.
Browser-level lazy loading for CMSs
Learnings for adopting the standardized loading attribute
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.
Signed Exchanges (SXGs)
An SXG is a delivery mechanism that makes it possible to authenticate the origin of a resource independently of how it was delivered.
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.
