HTML -Seitensymbol
<link rel="icon" type="image/png" href="/favicon.png"/>
<link rel="icon" type="image/png" href="https://example.com/favicon.png"/>
Poised Pigeon
<link rel="icon" type="image/png" href="/favicon.png"/>
<link rel="icon" type="image/png" href="https://example.com/favicon.png"/>
<link rel="shortcut icon" href="http://sstatic.net/stackoverflow/img/favicon.ico">
<link rel="icon" href="youricon.png" />