How much information can any random site get when you visit it?

[LakerGod]

I know some sites trace IP addresses and such, but exactly how much information could a website get when you visit it? Is there any way to look at the source code to see if they are doing this?

 

[NogginBoink]

You can't look at any source code.

They can get your IP address, and any information that your browers passes in headers. Do a network trace from your machine and examine what your browser sends with the GET request.

 

[StageLeft]

No, you can't see by source code what they're getting. Really all they can get is basic stuff like your IP address and what browser you're using and stuff.

Although people love to bitch about cookies a cookie by definition holds only information that the website gave back to you to hold, so it can't make stuff up like searching your computer to find your email address for instance.

EDIT: Damn, I used the word 'stuff' thrice.

 

[LakerGod]

Do a network trace from your machine and examine what your browser sends with the GET request.

How do you exactly do this?