In recent past I have been looking on the performance of our web application. To understand what takes more time I was looking for a tool that provide me detailed report what part of the web page takes more time.
My hunt started with Fiddler, an excellent tool and provides great information but when I looked at the tool named HTTPWatch, I was IMPRESSED. An awesome tool and provide great detail information similar to Fiddler. But the most impressive was it get integrated with your IE browser including IE 8.0 beta. So while you traverse a page and wait for the page getting rendered the tool will display all the HTTP request from browser to web page server. This includes the AJAX request.
Great tool!!!!! try it out Download