But page view need not necessarily be viewed as catching can load pages without the ad reaching the browser. Ad views are registered only when an ad is displayed on the screen. However, ad views would not take care of caching. An ad view tells us how many times the ad was displayed but hides who saw the ads and how often . But there are grey areas in it too.
Users can choose to turn off the cookies or delete the cookie files.
Also cookies identify the machines, not the individuals using it. Click-through With advanced software, servers can count how many people have acted on an advertisement by logging every user who clicks on a banner ad. Buying of advertising space on click-through basis is, however, not 100 per cent accurate. The server registers a click-through as soon as the visitor clicks on an advertisement. However, in real conditions, it takes some time for the destination site to appear on the screen and the user may hit the stop button.