Web Performance Engineering in the Age of AI

On today's web, performance isn't just a nice-to-have--it's essential. A slow or unstable experience drives users away, while a fast, reliable one builds trust and keeps them engaged. Web Performance Engineering is a comprehensive, hands-on guide for developers, technical leads, and performance engineers focused on delivering high-impact, user-first web experiences. Written by Addy Osmani, an engineering leader on the Google Chrome team, this book combines deep technical insight with a strong emphasis on usability and real-world effectiveness.
Through case studies, modern optimization techniques, and a user-centered approach, you'll learn how to identify bottlenecks, debug performance issues, and apply improvements that make a measurable difference. Grounded in current browser internals and performance metrics, this book prepares you to design and maintain faster, more resilient websites at scale.
- Understand how users perceive speed--and why it matters - Evaluate and improve performance using key metrics - Optimize for stability, responsiveness, and load time - Identify and address the most common performance bottlenecks - Apply real-world strategies that lead to lasting results

Addy Osmani is a Senior Engineering Leader at Google Chrome, where he works on developer experience, performance, and AI-powered software development tools. He has over 20 years of industry experience building web technologies and has authored multiple books on software engineering best practices.
He has worked extensively with AI-driven developer tools, testing and evaluating emerging platforms like GitHub Copilot, OpenAI Codex, v0.dev, Cursor, and Cline. His writing on AI-assisted software development has influenced thousands of developers, and his leadership at Google Chrome has helped shape the future of web performance and AI-augmented developer workflows.