Web Performance Testing at YouTube

Web performance is a crucial aspect of web development that focuses on the speed at which pages load, as well as how responsive they are to user input.

This tutorial teaches you how to use the Chrome DevTools Performance panel to analyze runtime performance.

PageSpeed Insights (PSI) reports on the user experience of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved.

Analyze with PageSpeed Insights. Get your PageSpeed score and use PageSpeed suggestions to make your web site faster through our online tool.

Google Lighthouse is an open-source website performance testing tool that audits URLs for performance, SEO, accessibility, progressive web apps, ...

PageSpeed Insights Docs Enter a valid URL Analyze Make your web pages fast on all devices Check out What's new Documentation Learn about Web Performance Web Vitals · Optimize Cumulative Layout Shift · Optimize Largest Contentful...

Search Console tools and reports help you measure your site's Search traffic and performance, fix issues, and make your site shine in Google Search results.

Learn how often people see or click your pages on Google, and what they were searching for. Tools for measuring your performance on Google Search.

Use Google's PageSpeed Insights tool: pagespeed.web.dev to test individual pages. There are options for testing on mobile or desktop: always ...

Performance Testing · Speed - does the system respond quickly enough · Capacity - is the infrastructure sized adequately · Scalability - can the ...