A favicon is a small icon associated with a website. It appears next to the page title in the browser tab, in the bookmark list, and in selected elements of the device interface.
How to prepare a favicon?
The icon should be simple, readable at a very small size and consistent with the brand identification. Most often, a brand symbol or a simplified logo is used instead of a full logo with text.
It is worth preparing a file in several required sizes and checking it against a light and dark background. A correct favicon makes it easier to recognize your website among many open tabs.