I thought perhaps some people have a slow connection, get successfully redirected through google's click stats, but then give up before reaching my site?
My landing page is on quick load-balanced hosting, so my idea shouldn't really happen...?
One problem:
Many users have cookies disabled.Another:
Your stats package.
Other things to keep in mind:
* Time discrepancies between different tracking programs can throw you off. AdWords reports are US Pacific Standard Time.
* Server delays - stats in your account run slightly behind (up to three hours behind under normal circumstances).
* Your system may filter out visits from your own IP address, while AdWords does not.
* Some Internet Service Providers assign a single IP address to more than one user. (In some cases, many more than one.)
AWA