What is favicon?
A favicon is a short form or achronym for favorites icon. It is also known as shortcut icon, website icon, URL icon, or bookmark icon. It is a small icon or image displayed at the beginning of  the address bar of the browser and also displayed at the beginning of the title in the browser.

Favicon size: Favicon icon files can be either 16 x 16 or 32 x 32 pixels in size but displays 16 x 16 pixels in size.

Additional  information about favicon: Favicons are either 8-bit or 24-bit in color depth. GIF files have a limited, 256 color palette entries.

Founder of favicon : Simon Butcher is the founder of favicon.

History: In 2003 the .ico format was registered with the  IANA( Assigned Numbers Authority) under the MIME type image/vnd.microsoft.icon, which standardized the .ico file type. The correct mime for icons is image/x-icon.

Browser support:

Google ChromeDepends4.04.0No4.0NoNo
Internet Explorer4.0NoNoNoNoNoNo
Mozilla FirefoxYesYesYesYesYes3.0No

Favicon is supported by Internet Explorer,Mozilla  Firefox, Google Chrome, Safari and Opera.

Format for cross-browser compatible:

<link rel="shortcut icon"  href="http://www.bloggershangout.com/myicon.ico"/>

<link rel="shortcut icon"  href="/somepath/myicon.ico"/>

Supported format of link tags for HTML and XHTML:


  • <link rel="icon" type="image/vnd.microsoft.icon" href="http://example.com/image.ico">
  • <link rel="icon" type="image/png" href="http://example.com/image.png">
  • <link rel="icon" type="image/gif" href="http://example.com/image.gif">


  • <link rel="icon" type="image/vnd.microsoft.icon" href="/somepath/image.ico" />
  • <link rel="icon" type="image/png" href="/somepath/image.png" />
  • <link rel="icon" type="image/gif" href="/somepath/image.gif" />
Advantages: Favicon makes it easy to find blog or website when someone bookmarked your blog/website among serveral blogs/websites.
It makes your blog look professional.

That's all to say about favicon.