A favicon is a tiny symbol that helps a web browser recognize a particular website. Most computers place a website's logo next to the Name on the left side of the address field. The logo may also appear in some browsers' tabs next to the website header. Favicons and notes or "favorites" are both immediately stored.

Since the early 2000s, favicons have existed and are recognized by all of the main online platforms. However, the symbol is implemented differently by various computers. Favicons, for instance, are displayed in the browser bar of Firefox, Internet Explorer, and Safari, but only in the page windows of Google Chrome. Internet Explorer only shows favicons stored in the.ICO format, whereas the majority of computers allow favicons saved as.GIF,.PNG, or.JPG images.

The typical procedure for adding a logo to a website is to submit a tiny 16x16 pixel picture with the file name favicon.ico to the website's base location. The favicon.ico file is searched for when a user opens a page from a website in a web browser, and if one is found and stored in a compatible format, the image is immediately displayed next to the Address or page header. Additionally, the logo can be defined as follows in the HTML of a webpage:

• <link rel="shortcut icon" href="http://www.xxx.com/myicon.ico">

If you want to show a unique symbol for specific sites within a website, the HTML technique can be helpful because it usually replaces the logo stored in the main location.

Although most computers will also accept favicons stored as 32x32, 48x48, and 64x64 pixel pictures, the usual height for a favicon is 16x16 pixels. In order for favicons that are bigger than 16x16 pixels to appear properly in browsers, they are usually resized down to 16x16 pixels. Browsers that enable retina screens, on the other hand, will show 32x32 pixel images in their original size.