The Fiddler Web Debugger is an extremely useful tool for debugging analytics tools.  You can proxy all HTTP traffic through it and view the data contained in all requests going out to analytics systems.
Fiddler also lets you save your session (which contains all the requests and responses made) so that you can open and view it later.  This however creates a problem – How do you know which request is which?
Thankfully Fiddler supports comments, you can assign a short comment to each request making it easy to see which requests corresponds to which action you performed in the browser.  By default the column that shows the comment is at the very far right making it somewhat hidden, you can simply drag this left to reorder them in a more useful way.  To comment a given request, simply click on it and press “m” on your keyboard- this will now put a comment against your request.