Pingdom

If your page loads seem slow and you are looking for a way to analyze and ultimately optimize the performance of your website then take a look at the online application called Pingdom Tools. One of the tools that is available is called Full Page Test that will give you a full scale analysis of where your site stands.

Feature Overview:

Examine all parts of a web page – View file sizes, load times, and other details about every single element of a web page (HTML, JavaScript and CSS files, images, etc.). You can sort and filter this list in different ways to identify performance bottlenecks.

Performance overview – We automatically put together plenty of performance-related statistics for you based on the test result.

Performance grade and tips – See how your website conforms to performance best practices from Google Page Speed (similar to Yahoo’s Yslow). You can get some great tips on how to speed up your website this way.
Trace your performance history – We save each test for you so you can review it later and also see how things change over time (with pretty charts!).
Test from multiple locations – See how fast a website loads in Europe, the United States, etc.
Share your results – We’ve made it easy for you to perform a test and share it with your friends, work colleagues or web host.