Above the Fold is the portion of a web page visible before a user scrolls, especially on the initial screen.
It matters because a website is often the first serious evaluation point for a buyer. Good design reduces confusion, builds trust quickly, supports accessibility, and helps visitors take the next step without feeling pushed.
Example
A short laptop screen and a tall phone show different amounts of the same hero section before scrolling. Review both: the initial screen should communicate the page’s purpose, without assuming one universal fold position.