Until recently there were 51 different ads sizes so making creatives for your Adwords Display Network campaign was a real chore (read ‘expensive’).
Fortunately AdWords are now automatically resizing ads, so you can reach 95% of the Google Display Network (GDN) with just three core ad sizes:
- 728 x 90 pixels
- 300 x 250 pixels
- 160 x 600 pixels
In the past, the same three sizes could only reach 54% of the GDN. On average, this feature increases conversion volume by 6% at the same CPA.
Many thanks to Scott MacGregor from Google Australia for this information