I see a lot of AdWords landing pages with random numbers on the end of them. It seems to me that the landing page is always the same content but is a different URL. How is this done? I have a similar thing going on with my PayPal where i have a PHP website that people are redirected to but the URL is different every time. Is this what they do? Does Google look down on this? Does this keep your quality score higher? I notice that my new landing pages always have a better quality score. Seems like this would be a great fix for that. Thanks all