A favicon is a small 16 * 16-pixel icon that serves as branding for your website. Its main purpose is to help visitors locate your page easier when they have multiple tabs open. Due to their tiny size, favicons work best as simple images or one-to-three characters of text. Favicons are not to be confused with logos but are sometimes the same. Due to its small size and resolution, the favicon may need to be an even smaller sizer or part of a company's original logo.