recently getting much lower impressions on G stats

[pcgamez]

Usually, my Google AdSense stats show about 65% of the total page counts that my Awstats statistics show. That is fine by me as I don't run ads on all my pages (just the top 6 pages, which are the vast majority of hits). Recently (over the past 2 weeks or so), there has been a reduction in the number of impressions reported by Google.

Example: July 1st, the most recent day that channel stats are listed
Google lists 2,659 page impressions, yet Awstats reports 7,798 pages.

I use my site on a daily basis and don't ever see any PSA ads. Any ideas? Is this normalish?

[richmondsteve]

pcgamez wrote:

I use my site on a daily basis and don't ever see any PSA ads.

In case you weren't aware, PSA and AA impressions *are* included in impressions reported in the AdSense reports so an increase in % of impressions showing AAs or PSAs won't affect reported impressions.

Any ideas?

Increased bot activity (though if AdSense only on 6 pages that shouldn't have much effect).
Increase in users disabling JavaScript b/c of recent IE/IIS JS exploit issues.
Increase in users using firewalls which block AdSense.
Increase in traffic to pages not showing AdSense (that is if Awstats page views are for entire site, not just those 6 pages).