Prevention methods for click fraud on advertisements and their implementation

Question

How can I prevent from abusing by over clicking my ads...or using an automated system, or an iframe with the ad url to inflate the clicks.

I was wondering having the

Answer 1

You have the following choices that you can follow:

For each ad id you can generate a time based encryption. So for example encrypt time with a secret passphrase and then decrypt it with that secret passphrase later.

You can use a public key and private key approach.

You can have a two tier system where an ad is clicked the click is validate to see if it is being loaded in an iframe or if that window is active.

Another method is to look at the transactions that take place. if the visitor has clicked the ad and then look at how many actually reach the destination and for how long.