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Category: Tools

YSlow’s Performance Analysis

YSlow, is an extension to Firebug, is available within Firefox. It generates a score for each rule and an overall score based on a weighted average of the individual rule scores. It also displays a list of all the resources used in the page as well as overall statistics (number of requests, total page weight, etc.). The basic rules of YSlow’s Performance Analysis Minimize HTTP Requests Use a Content Delivery Network Avoid empty src or href Add an Expires or a Cache-Control Header Gzip Components Put StyleSheets at the Top Put Scripts at… Read more YSlow’s Performance Analysis