Link masking, also known as URL masking or cloaking, is a technique where the actual URL of a hyperlink is hidden, and a different URL is displayed in the address bar. It is often used for aesthetic or security reasons.
Masking links can make them appear more user-friendly or prevent users from viewing the actual destination URL.
An affiliate link "http://www.example.com/affiliate123" might be masked to display "http://www.example.com/recommends/product."