YSlow - your new best friend
[http://performancedude.com/wp-content/uploads/2011/01/yslow_overview.png]The first tool that you should definitely check out is YSlow from Yahoo. YSlow is a plug-in for Firebug, which is a must-have for all web developers. You can find the Firebug plug-in here: http://getfirebug.com/ and the YSlow…