Check out example codes for "favicon x shortcut icon". It will help you in understanding the concepts better.

Code Example 1

// Target ios browsers.
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
// Target safari on MacOS.
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
// The classic favicon displayed in tabs.
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
// Used by Android Chrome for the "Add to home screen" icon and settings.
<link rel="manifest" href="/site.webmanifest">
// Used for Safari pinned tabs.
<link rel="mask-icon" href="/safari-pinned-tab.svg" color="#193860">
// Target older browsers like IE 10 and lower.
<link rel="icon" href="/favicon.ico">
// Used by Chrome, Firefox OS, and opera to change the browser address bar.
<meta name="theme-color" content="#ccccc7">
// Used by windows 8, 8.1, and 10 for the start menu tiles.
<meta name="msapplication-TileColor" content="#00aba9">

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