What is a Favicon?
Favicon is short for favorite icon, but also known as a shortcut icon, website icon, tab icon, URL icon, or bookmark icon, and is a file containing one or more small icons that is associated with a particular website or web page.
Web designers can create such an icon and upload it to a website (or web page) by several means, and graphical web browsers will then make use of it.
Browsers that provide favicon support typically display a page’s favicon in the browser’s address bar (sometimes in the history as well) and next to the page’s name in a list of bookmarks.
Browsers that support a tabbed document interface typically show a page’s favicon next to the page’s title on the tab, and site-specific browsers use the favicon as a desktop icon.