A favicon, short for 'favorite icon', is a small graphic icon that represents a website or webpage. It is typically displayed in the address bar of a browser, in the list of bookmarks, and alongside the site name in browser tabs. Favicons are a crucial part of website branding, helping users quickly identify and locate the website when multiple tabs are open or within a list of bookmarks. They are usually created in the ICO file format, although browsers also support PNG and GIF formats, and are designed to represent the website's logo or a related visual element.