Determining PPC click fraud

[splumkin]

We are running a PPC campaign on both O & G and tracking clicks and sales with CR. G shows 10% more click-throughs each month than CR. O shows 65% more click throughs than CR every month. Can this be click fraud? How can we tell? What logs do we look? What are we looking for?

[cgrantski]

Can you explain exactly how you are tracking (how are the hits being identified by you?) It might help identify how any clicks could be getting past you, in case that's what's happening. Also, another important thing, is the page that the clicks are landing on a redirect of any kind?

[splumkin]

To track our PPC, we have placed snippets of tracking code on all of our web pages for Con...R to track. We also have several different URLs with their own landing page to track our print ads. Hence, when we check the hits on CR we can identify where they are coming from... except for the ones we are not catching from Overture PPC.