web.dev

Google's free web development resource with courses, guides, and case studies on performance, accessibility, security, PWAs, and modern browser APIs — written by the Chrome team engineers.

Why it is useful

The most authoritative free resource for modern web platform best practices, written by the people who build the browser. The performance guides are especially valuable — Core Web Vitals explanations, image optimization techniques, and rendering pipeline fundamentals are hard to find explained this clearly anywhere else. The courses are structured well enough to work through from start to finish.