Measure size of Web Requests and Responses

Question

I am looking for a way to measure the size of web requests and responses that I make in my browser. I would need a way to measure regular requests, as well as ajax requests. I am trying to improve Ajax performance by decreasing request and response size, and I need some way to benchmark this on the client end as well as measure my progress as I go.

This is part of an ASP.net application (3.5), but I would definitely prefer some client-based tool (Firefox plugin, executable application, etc) rather than a code-based approach.

Answer 1

You can use HttpWatch on IE and FireBug on firefox to check the request response header. These should be enough for what you have asked for.