Which of the following is NOT a step in the Critical Rendering Path?
- Paint
- Layout
- Creation of the render tree
- First Input Delay
Explanation: First Input Delay’ is not a step in the Critical Rendering Path. The Critical Rendering Path consists of several steps that the browser takes to render a web page efficiently. These steps include the construction of the DOM (Document Object Model), the construction of the CSSOM (CSS Object Model), the creation of the render tree, layout, paint, and composite. First Input Delay, on the other hand, is a metric used to measure the responsiveness of a web page to user input. It evaluates the time it takes for a page to respond to the first user interaction, such as a click or tap, after the page has loaded. Unlike the steps in the Critical Rendering Path, which focus on rendering and displaying content, First Input Delay assesses the user experience aspect related to interactivity. It helps developers understand how quickly their pages respond to user actions, which is crucial for providing a smooth and responsive browsing experience.