YSlow is an extension for Google Chrome. It analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. YSlow grades web page based on one of three predefined ruleset or a user-defined ruleset. It offers suggestions for improving the page's performance, summarizes the page's components, displays statistics about the page.
What's new in version 3.1.2
ReleaseJuly 17, 2012
Date AddedJuly 17, 2012
Operating SystemsWindows, Windows XP, Windows Vista, Windows 7