This tool uses pingdom.com to test the performance of a website at one of a selection of regions across the world.
The results of the test will be displayed, including the overall load time, a score of the website’s performance, the total size of the page as transmitted over the network, and the number of HTTP requests it took to load.
The response codes for the various content will also be displayed. In general, you will want to avoid redirections (301 and 302) and any erroneous requests in the 400s or 500s.
Finally, it will show a breakdown of the types of content which make up the page’s size and request count.