As screens grow and web content continues to become richer, the format and capabilities of ad units continue to evolve as well. One of the top requests from publishers in the last year has been to add larger ad sizes to our network, and today we’re excited to announce that the popular 300x600 unit will soon be available in your AdSense account.
The 300x600 unit, sometimes referred to as a half page unit, provides a larger space for advertisers to get their message across and can offer users rich engagement. As mentioned in our recently released Display Business Trends, the 300x600 is one of the fastest growing sizes by impressions and is indicative of a trend where publishers are offering more visually impactful ad sizes that are preferred by brand advertisers. Because this unit is new to our network, you’ll currently see a large number of text ads in these placements. Over time we’ll continue to build a wide range of text and display ad inventory eligible to appear in this full slot as well.
As with all ad sizes, it’s important to carefully consider the placement of ad units to ensure both users and advertisers have a great experience with your site. If you’d like more information on the performance of potential placements, check out our heat map in the AdSense Help Center.
If you have feedback about the 300x600 ad unit, feel free to leave a comment on our AdSense +page and discuss your thoughts with other publishers.
Posted by Omer Gimenez Llach - AdSense UI Engineer