If you have 3 Google ads in one page, does it count as 3 impressions or 1, every time the page is displayed?
A friend of mine told me that people at Google take their shoes off and then count on their left foot, naming successively each toe, afterwards going to count with the right, and then all of us can see the results in our respective Adsense control panel
It does not matter how many ads are displayed. So your answer is one impression per page viewed. There are however Ad unit impressions as well, not sure if that helps you or just makes things a bit more confusing.
In this case, the number of impressions should roughly equal to the number of hits on the page independent of how many ads you display on the page, is this correct?
so do you saying that the numbber of impression is the same to the number of visitors to our site. uhmmm,.... maybe you can check your traffic statistic and compare it.
Nobody said that. If Sem-Advance is right then the number of impressions should equal the number of hits on the pages since 1 visitor can look at many pages.
That would be the most llogical solution, I think. But on my blog, it doesn't work out. My blog doesn't get a lot of hits, perhaps someone else can share his thoughts?
Well not exactly but I maybe misunderstanding which hits you are refering to. Each page of a website will generate 20 to 100 hits on average for each visitor. Each image is counted as a hit, as are content sections of the page, so then each ad would also count as a hit. however that same visitor would generate only 1 impression for visiting the page. Hope this helps.
Alot of those pageviews are discredited, right? I mean, I always get alot fewer AdSense impressions than I do pageviews with AdSense on them.
Well they are not complete pageviews so they are not credited as you put it. They cannot charge the advertiser for an ad not delivered... and as such will not pay the publishers for it either.