use png as favicon code example

Example 1: favicon HTML

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

Example 2: png favicon

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

Example 3: favicon png

<link rel="icon" type="image/png" href="https://cdn.yourwebsite.com/favicon-16x16.png" sizes="16x16">
<link rel="icon" type="image/png" href="https://cdn.yourwebsite.com/favicon-32x32.png" sizes="32x32">
<link rel="icon" type="image/png" href="https://cdn.yourwebsite.com/favicon-96x96.png" sizes="96x96">