Jumping into code development is Yahoo! and here’s an interesting release from them - YSlow. It’s a Firefox add-on that uses the Firebug extension to check, based on several criteria, how slow a page loads.

It adds a YSlow tab to Firebug that shows different information about the page. You can check the performance (which shows a grade based on the criteria), stats (which show cache and cookie consumption), components (which shows CSS images and content images), and a few tools. The button nests on the status bar for access.

My personal blog here get F score-that means a slow site. Many other sites that I manage to test also get the F score. Why don’t give a try.