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

Yahoo! YSlow add-on for Firebug (in FireFox) is one of the best tool for what you want to do.

EDIT: You'll need FireBug installed in Firefox first to install YSlow.

Answer 2

It looks like the Firefox Firebug plugin > Network Monitoring might do the job.

Answer 3

Charles is an excellent web debugging proxy that will show you the size of every HTTP request made by your web browser. It also offers a very easy way to examine the payload of your requests, including XML.

http://www.charlesproxy.com/

Answer 4

For firefox there is a add-on available called LORI(Life-of-request-imforation). This is the URL: https://addons.mozilla.org/en-US/firefox/addon/1743

It tells you the pagesize, how many request it makes to server(for css, javascript etc.) time to first byte and time to completion of the request.

Answer 5

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.

Answer 6

I usually use Fiddler to investigate what requests that are made, response times and sizes.

Answer 7

Hi

For internet explorer you can download IE Developer toolbar from: "http://www.microsoft.com/DownLoads/details.aspx?familyid=E59C3964-672D-4511-BB3E-2D5E1DB91038&displaylang=en"

Additionally you can download Fiddler from: "http://www.fiddler2.com/fiddler2/"

To profile your request/response.

For Firefox there are numerous plugins: - Firebug - YSlow

Answer 8

In addition to everyone else's excellent recommendations there's a specific toolset for Visual Studio and Ajax, the VS Ajax Profiling Extensions - however this will only work on IIS7