pageoneresults - 7:12 am on Jun 28, 2011 (gmt 0)

I did some research on this back in 2007, not sure if it still applies.

Stop all those favicon 404s!
[WebmasterWorld.com...]

At that time, using the rel="shortcut icon" in addition to rel="icon" was to address compatibility issues with IE which used the rel="shortcut icon". I've done some quick scanning and it appears that this was an issue up to IE6. IE7+ appear to support the rel="icon" which is the official link type.

4.12.3.6 Link type "icon"
[W3.org...]

I still use both but I haven't researched the latest on compatibility issues such as those back in 2007. Anyone else got any updated information on use of both rel="shortcut icon" vs rel="icon"?