Many publishers make a direct connection between the number of page views (which they can see on tools like Google Analytics) and their number of impressions. Unfortunately, it is not that simple. Indeed, if you place a unique ad unit on all of your pages, you could be tempted to deduct that 1000 pages views = 1000 impressions ( ad display).
Even with a CPM system, the number of page views rarely equals the number of impressions.
There can be many reasons for it:
The Moneytizer pays all its publishers on a CPM basis. In spite of the obstacles to monetization that we have just listed, it is obvious that your traffic and your number of impressions are intimately linked. The more visitors you have on your site thanks to quality content, the more you will be paid thanks to the large number of impressions that your site generates :)