Google has recently updated caffeine – Googleâ€™s New Search Engine Index. Â The new Â GoogleÂ searchÂ Engine Index consider speed of the site as a matter forÂ decidingÂ Â the page rank. Â Google has released a wonderful tool to check the speed of the site. The tool is called pagespeed, its aÂ FirefoxÂ add-onÂ and its works with Firebug. You can Download pagespeed from here.
Once you have installed this tool, you can just browse your website inÂ FirefoxÂ and Â click on Analyse performance under page speed shown in the below screenshot.
You have to go through all of the performance report and take appropriate action in regards to speed up the site.
watch this google video