With the advancement of new technologies we now know that many display ads that are served never actually have the opportunity to be seen by a user. In fact in a recent study of Active View data by Google, we found that 56.1% of all ads served were not measured viewable. Yet, the average publisher’s viewability is 50.2%. This means a small number of publishers are serving the majority of non-viewable impressions and dragging down the served impression viewability average by almost 6%.
As advertisers shift to paying for viewable, rather than served impressions, it’s more important than ever to understand what drives the viewability of ads. To see all “5 factors of viewability” check out the full infographic and study at thinkwithgoogle.com.

Posted by Sanaz Ahari, Group Product Manager