title: Ideas for a cookie crawler?
body: <p>I'm a looking for a PHP/javascript/etc. crawler (bot) who would check given sets of websites and (that's the important part) check which cookies that website sets into user's browser!</p>
  
  <p>I don't even know if it's possible to do something like this, because I know crawlers can check the content of websites and even crawlers can have stored cookies when the user comes to a website, but can he actually read cookies from a website? </p>
  
  <p>So my question is: Isn't this impossible by definition? Can something like this be done? Basically check which cookies a website sets into user browser and for example store them in a variable.</p>