Many times we thought If we put multiple ad units on single web then we can generate more revenue from google Ads. But that is not true because If we put multiple Ad units on single webpage then google never serve Ads for all Ad unit.
There is limitation from google side. Publishers can only place the three AdSense for content units on one webpage. You may also place a maximum of three link units and two search boxes on each webpage. Means you can put the three link ads and three content ads and two search box on single web page.
If you place more than three ad unit on a single webpage, google will display unique ads to each ad unit. Because google system automatically displays an optimal number of highly targeted Google ads on each page.
