Yahoo Releases YSlow

Yahoo has just released their new web performance tool called YSlow.

YSlow measures individual web page performance based on the best practices outline.

"YSlow has three main views: Performance, Stats, and Components. Performance view scores the page against each performance rule, generates an overall YSlow grade for the page, and lists specific recommendations for making the page faster. Stats view summarizes the total page weight, cookie size, and HTTP request count. Components view lists each component (image, stylesheet, script, Flash object, etc.) in the page along with HTTP information relevant to page load times. It also contains several tools including JSLint."

I installed this yesterday and it provides great information about your sites. Specifically I was interested in the rating that it gave me for ETags, CDN and expiring headers. All the other things listed in the report are excellent little tools that can help you increase the speed at which your sites load.

Give it a try and let me know your comments.