intermediatetermPerformancePerformance / Bundle size
IntermediateNot yet reviewed

Bundle size

Bundle size is how much JavaScript and CSS a page sends to the browser.

Definition

Bundle size is how much JavaScript and CSS a page sends to the browser. Larger bundles take longer to download and run.

Use case

Each library you add increases it. Code splitting loads only what the current page needs.

Related terms

Courses

Learn Performance

web.dev · Course

Explains code splitting and other ways to ship less.

Suggest a change