Speed up your web pages with YSlow
YSlow analyzes web pages and tells you why they're slow based on the rules for high performance web sites. YSlow is a Firefox add-on integrated with the popular Firebug web development tool. YSlow gives you:
Download Now
Install Firebug first!
* Performance report card
* HTTP/HTML summary
* List of components in the page
* Tools including JSLint
Visit Yahoo! Exceptional Performance on YDN.