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Yahoo's YSlow Plug-in Tells You Why Your Site is Slow

Posted by CmdrTaco on from the like-i-need-a-plugin-to-tell-me-i-suck dept.

Stoyan writes "Steve Souders, performance architect at Yahoo, announced today the public release of YSlow — a Firefox extension that adds a new panel to Firebug and reports page's performance score in addition to other performance-related features. Here is a review plus helpful tips how to make the scoring system match your needs.

5 of 103 comments (clear)

  1. Another tool by Klaidas · · Score: 2, Informative

    Web developer(a must-have) has a speed analyzing tool by default (well, more of a link to a website that does the job), I prefer to use that one. Here's an example of slashdot's report.

    1. Re:Another tool by Klaidas · · Score: 2, Informative

      It provides download times for all kinds of connections, from 14.4K to 1.44Mbps. Also, seperate download times for objects.

  2. Re:Firebug not Firefox by JuanCarlosII · · Score: 4, Informative

    YSlow require Firebug to previously be installed in order to run. It is an extension of the capabilities of Firebug and so is an extension of an extension, a meta-extension if you will.

  3. Re:/. gets a D by MinorFault · · Score: 2, Informative

    We started with websiteoptimize here at Zillow, but Steve's tool is much more useful. His upcoming O'Reilly book is also quite good. We've taken seconds off our of our user response time with it. Steve came and spoke and it was very well attended and liked by a bunch of Seattle Web 2.0 folks.

  4. Re:My site gets a D too by grahamsz · · Score: 3, Informative

    If you put the links to the CSS at the very top of the head section then that grade will jump from an F to an A.

    I doubt moving them above title makes any noticeable difference in the real world though.