YSlow is a website performance analysis tool. YSlow installs as a Firefox extension. You need to have Firebug also installed to use YSlow. It does not work with Firebug for Chrome. It will analyze your website’s performance in similar manner as Google Page Speed does, and provides suggestions about improving website performance. It also grades your website on a scale of A to F to show how your website ranks in terms of performance optimizations.
- [advt] 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