“What is a favicon?”

Favicons are tiny icons that appear next to your site’s title or URL in browser tabs, bookmark menus and address bars. The recommended image dimensions are 32 pixels by 32 pixels.

An upload form that takes a favicon.
Width Height
32 pixels* 32 pixels*

* Minimum recommended dimensions. We strongly recommend that you upload a square icon.

All modern desktop browsers support ICO, PNG and GIFs as favicons. See Favicons on Wikipedia for more information.