```json
{
    "title": "YSlow: Cool idea, performance inhibitor",
    "url": "https://performancezen.com/2007/08/03/yslow-cool-idea-performance-inhibitor/",
    "datePublished": "2007-08-03",
    "dateModified": "2007-08-03",
    "language": "en-US",
    "description": "So, a colleague of mine told me about the YSlow plugin for Firebug yesterday. I had a look at it and it does do an amazing job of analyzing Web…",
    "author": "spierzchala",
    "publisher": "Performance Zen"
}
```

# YSlow: Cool idea, performance inhibitor

So, a colleague of mine told me about the [YSlow](http://developer.yahoo.com/yslow/) plugin for [Firebug](http://www.getfirebug.com/) yesterday. I had a look at it and it does do an amazing job of analyzing Web pages according to Steve Souders [performance rules](http://developer.yahoo.net/blog/archives/2007/03/high_performanc.html).
The only hitch in the get-along: a number of pages I visited when the plugin was activated were effectively unusable for up to a minute, presumably as YSlow analyzed them.
Great idea, all Web developers whould use it to put me out of a job. But the overall performance of the plugin will need to be improved before I re-install it.
Technorati Tags: [Firebug](http://technorati.com/tags/Firebug), [YSlow](http://technorati.com/tags/YSlow), [Souders](http://technorati.com/tags/Souders), [Web performance](http://technorati.com/tags/Web%20performance)