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Yahoo! YSlow

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for... Created by Yahoo!

Free Open Source
Mac
Windows
Linux
Firebug
Chrome
Safari
Opera
Firefox

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. YSlow is a Firefox add-on integrated with the Firebug web development tool. YSlow grades web page based on one of three predefined ruleset or a user-defined ruleset. It offers suggestions for improving the pages performance, summarizes the pages components, displays statistics about the page, and provides tools for performance analysis, including Smush.it™ and JSLint.

Yahoo! YSlow is listed in

Link to official Yahoo! YSlow site

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browser-extension optimization web-optimization

Yahoo! YSlow (sometimes referred to as Yahoo YSlow, YSlow) was added by GoogleOla in Jul 2009 and the latest update was made in Sep 2017. The list of alternatives was updated Apr 2019. It's possible to update the information on Yahoo! YSlow or report it as discontinued, duplicated or spam.

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