# How a Page Loads

Watch the browser read a page from top to bottom and fetch every file it names, then measure the page's size and speed the way a visitor on a phone feels them.

![Codey's cheat sheet for How a Page Loads: Watch the browser read a page from top to bottom and fetch every file it names, then measure the page's size and speed the way a visitor on a phone feels them.](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/10/cdd3dff746f94f94bdc1be892753e9a8.webp)

- Category: HTML
- Level: Journeyman
- Tags: Developer Tools, html, HTML parser, Lighthouse, request, web-development
- Updated: October 31, 2026

Source: https://www.ask-codey.com/cheat-sheets/html-how-a-page-loads-cheat-sheet