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 in the Age of AI 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, director at Google Cloud AI, 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

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