Favicons are small icons that appear in the address bar of a web browser and are specific to a particular web site. Not all web sites have a favicon, but every web site can have a favicon.

The term is short for Favourites Icon.

When someone saves their web site as a bookmark or in their favourites, the icon acts as a visual identifier for that web site.

This picture shows the favicon for this website. The capital "W", highlighted in red is the favicon.

Because of their small size it is usually not possible to have the full company logo as a favicon, but it is normal to try and represent the style of the company in a favicon.

There are a number of free online favicon generators available if you need to make a favicon for a web site.