Favicons⚓︎

A favicon, short for favourite icon, is a small 16x16 or 32x32 pixel
icon, symbol, or logo that is shown, among other places, in a browser's
address bar to the left of the URL. It usually helps identify the
associated website in a recognizable way. It also appears in the
bookmarks bar, on browser tabs, and under Windows when saving a page to
the desktop. The favicon was introduced by Microsoft with Internet
Explorer 4.