What is favicon? According to Wikipedia we know that:
A favicon /ˈfævɪkɒn/ (short for Favorite icon), also known as a shortcut icon, Web site icon, tab icon or bookmark icon, is a file containing one or more[1] small icons, most commonly 16×16 pixels, associated with a particular Web site or Web page.
Technically, favicon is an icon, a visual identity for your web page.
In this article, I will review useful information about favicon, its characteristics, how to design and install favicon for your WordPress site. Let’s start with a question: why should we use favicon?