Have you experience this? I had lowest amount page impression about 10 according to adsense, but my own stats shows 136, what is the cause to this? anyone? thanks.
Or maybe some of your visitors have javascript turned off, then ads aren't shown..but it's a delay for sure..
My impressions never match my logs. I think that's due to cookies. Adsense doesn't count multiple impressions from the same IP maybe.
I use a adsense click tracker and it seems to pickup clicks that adsense doesn't. I think their system is fraudulent. Setup for them to make the $
In addition to the reasons listed above, maybe you were hit by some search engine bots that wouldn't result in AdSense impressions. It's really hard to draw conclusions from only 136 pageviews/hits.