18 ms·
CPM is by viewed ad and not unique visitor. Probably each user has 4 or 5 page views, then each page view counts for 3 or 4 ad views.
by adrr 14y ago
CPM is by viewed ad and not unique visitor. Probably each user has 4 or 5 page views, then each page view counts for 3 or 4 ad views.