A favicon is an icon that appears at the top right of your browser. Its main purpose is to improve the user experience coming to a website.
The resolution of a favicon has changed over time, at first the rule being 16 × 16 pixels.
Currently, a favicon's resolutions are extremely varied, ranging from 16 × 16 pixels to 512 × 512 pixels.
With the emergence of more and more website builders on the market, the client must know the real statistics of each web builder, in order to make the right choice for their future website!
The favicon formats can be both .ico and .png