Hello everyone, I want to build an advertising system like AdSense on my website. I want to count only clicks that are not from the same user.
Because I don't want the user to click many times on the same ad and ruining the ad program.
I was thinking of storing a SESSION or a COOKIE in the user computer when he clicks on the ad so the next click won't add up.
I also was thinking of saving the IP address of the user. But both methods can be manipulated by deleting the COOKIE or by changing the IP address.
So what can I do to make sure that the user haven't clicked on the same ad twice or more?