I set up a small site a while back and I've never used Adwords before so I thought I'd give it a spin. Basically the problem is that on a given day Google might report that I have had my ad clicked 50 times. However when I look at my web logs I only see 14 requests to "/" (which is where I have the campaign pointed to) and only 2 of those requests has google.com as the referrer. Why might this be? I would expect to see closer to 50 requests to "/" with google.com as the referrer.
I already read https://support.google.com/google-ads/answer/2375399