Learn how we've improved real user monitoring, synthetic testing, and team collaboration.

Firefox and Safari now support LCP and INP Core Web Vitals metrics, providing new insight into real visitor experience.

Take a look at Core Web Vitals on a real website to see how it could be optimized.

Learn how to optimize images in Next.js using the next/image component. Discover best practices for responsive images, lazy loading, and improving Core Web Vitals with automatic image optimization.

Find out how web performance changed in 2025, and what changes are coming up in the future.

We take a look at a real-world website to investigate what's slowing it down and how it could be optimized.

HTML parsing speed speed depends on the processing power of the visitor's device. I collected two quick datapoints.

Learn how to set pause execution, inspect application state, and discover advanced breakpoint functionality.

Learn how to delay individual requests in Chrome DevTools. Debug performance issues or bugs that happen when specific resources are delayed.

Learn what critical CSS is, how to inline it to improve page load performance, and understand the trade-offs before implementing it on your website.

Learn how to optimize your Magento and Adobe Commerce store for better Core Web Vitals. Fix slow TTFB, render-blocking assets, layout shifts, and more with our step-by-step performance guide.

Learn how to use the Chrome DevTools MCP server with AI models to analyze web performance and get concrete optimization recommendations.

Deliver beautiful images to your website's visitors without sacrificing page speed.

Explore a practical comparison of Nuxt and Next.js, focusing on SSR performance, hybrid rendering, and unique framework features. This guide highlights real-world benchmarks, code examples, and deployment considerations to help you choose the right framework for your projects.

What's the speediest site in the food, drink and recipe publishing vertical? We analyzed their web performance to find out.

Optimize viewport for mobile for faster interactions is a new Lighthouse performance insight that helps you detect viewports that are not optimized for mobile.

Learn to load test your website with our JMeter tutorial. Create scripts, run tests, and ensure your site can handle expected traffic.

We put 8 self-checkout machines in different UK stores to the test: how quickly do they respond to user input, what does the user see, and are there annoying extra steps before checkout?

What's the speediest site in the gaming publishing vertical? We analysed their web performance to find out.

Learn how to optimize third-party scripts in Nuxt using the Nuxt Scripts module and @nuxtjs/partytown. This guide goes beyond the basics, showing you how to declaratively manage scripts, conditionally load them (e.g., with consent), run heavy scripts in web workers, and combine both tools for real-world performance setups.