The RAIL Performance Model

RAIL is a user-centric performance model. Every web app has these four distinct aspects to its life cycle, and performance fits into them in very different ways: Response, Animation, Idle, Load.

• https://developers.google.com/web/tools/chrome-devtools/profile/evaluate-performance/rail?hl=en
• https://developers.google.com/web/tools/chrome-devtools/profile/evaluate-performance/?hl=en
• Free Course : Browser Rendering Optimization : Building 60 FPS Web Apps