What are the most important banner sizes to have in your ad set? An often upcoming question. We have the answer.
Just like in 2017, we have researched over 500 billion ad impressions from multiple ad exchanges and inventory sources.
The most important take-aways:
- The medium rectangle (300×250) has further gained popularity. Today, 38% of all ad impressions are 300×250 banner impressions.
- The 3 most used banner formats (300×250, 320×50, and 728×90) count for over 78% of all banner impressions. If you would add the half page (300×600) and wide skyscraper (160×600), your ads could run over 86% of all banner positions.
- In comparison with 2017, we see growing popularity on mobile web where web declined.
