There are actually two ways to add a favicon to a website.
<link rel="icon">
Simply add the following code to the <head>
element:
<link rel="icon" href="http://example.com/favicon.png">
PNG favicons are supported by most browsers, except IE <= 10. For backwards compatibility, you can use ICO favicons.
Note that you don’t have to precede icon
in rel
attribute with shortcut
anymore. From MDN Link types:
The
shortcut
link type is often seen beforeicon
, but this link type is non-conforming, ignored and web authors must not use it anymore.
favicon.ico
in the root directory
All modern browsers (tested with Chrome 4, Firefox 3.5, IE8, Opera 10 and Safari 4) will always request a
favicon.ico
unless you’ve specified a shortcut icon via<link>
.
So all you have to do is to make the /favicon.ico
request to your website return your favicon. This option unfortunately doesn’t allow you to use a PNG icon.
See also favicon.png vs favicon.ico – why should I use PNG instead of ICO?