What is bitly='BITLY_PROCESSED' in <a> tag?

While i was inspecting facebook html code through with firebug in Chrome, i found this tag :

<a href="http://www.facebook.com/?ref=logo" title="Home" bitly="BITLY_PROCESSED"/>

What 开发者_StackOverflowis the bitly attribute? Anyone has an idea?

:)

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It gets added by the bit.ly plug-in (and perhaps some others) when it examines links (see http://bit.ly/pages/tools form more on that). If you don't have that plug-in yoruself, then it may be that someone somewhere along the line did.

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bit.ly offers URL redirection service with real-time link tracking, or in other words URL shortener, so I am guessing you have it's plugin installed.