Why are cookies persistent?
If the web server does not detect a Unique ID for your session, it will generate one and send it to the client in the form of a cookie. So, if you accept the cookie, you only get it once. If you do not accept the cookie, it will try to send you one with every hit until you accept it. This means every page and item on that page you request from VINquery.com will come with a cookie request unless you already have one.