how to link favicon html5 code example

Example 1: html favicon

<link rel="shortcut icon" type="image/png" href="http://example.com/favicon.png"/>

Example 2: add favicon html

<link rel="icon" type="image/png" href="/favicon.png"/>

Example 3: how to add a favicon to html

<link rel='icon' href='favicon.ico' type='image/x-icon'/ >