Guide to ad sizes

The Ad Exchange supports the following ad sizes, available when you create a third-party display ad. To optimize reach and performance, you may want to adhere to the top-performing ad sizes.

Ad sizes in bid requests

Publishers can send requests for multiple ad sizes in one bid request. For these callouts, you must include BidResponse.Ad.width and BidResponse.Ad.height for each creative in your bid response. Learn more in the Real-Time Bidding (RTB) Protocol.

Top-performing ad sizes
Ad size Description Desktop & Mobile web* Mobile apps*
300x250 Also known as a medium rectangle. Tends to have more ad inventory available from advertisers, which can increase earnings when both text and image ads are enabled.

Performs well when embedded within text content or at the end of articles.
336x280 Also known as a large rectangle. Tends to have more ad inventory available from advertisers, which can increase earnings when both text and image ads are enabled.

Performs well when embedded within text content or at the end of articles.
728x90 Also known as a leaderboard. Tends to have more ad inventory available from advertisers, which can increase earnings when both text and image ads are enabled.

Performs well if placed above main content, and on forum sites.

Can also be used with tablet-optimized pages.
160x600 Also known as a wide skyscraper. Tends to have more ad inventory available from advertisers, which can increase earnings when both text and image ads are enabled.

Best if used along sidebars of webpages.
 

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* High-end mobile devices

** Learn more about IAB Rising Star ad units.

Other supported ad sizes
Ad size Description Desktop & Mobile web* Mobile apps*
88x31 Also known as a button, this format can fit into small spaces.  
120x60 Also known as a button, this format can fit into small spaces.  
120x240 Also known as a vertical banner, this format can fit into small spaces.

This size doesn't tend to perform as well as others due to its small size and limited supply of available display ads.
 
120x600 Also known as a skyscraper, this format can fit into narrower spaces that don't accommodate the 160x600 wide skyscraper.

The supply of available display ads for this ad size is more limited though, which may lead to sub-optimal ad performance.
 
125x125 Also known as a button, this format can fit into small spaces.

This size doesn't tend to perform as well as others due to its small size and limited supply of available display ads.
 
180x150 Also known as a small rectangle, this format can fit into small spaces.

This size does not tend to perform as well as others due to its small size and limited supply of available display ads.
 
200x200 Also known as a small square, this format can fit into smaller spaces that don't accommodate the larger rectangles.

The supply of available display ads for this ad size is generally limited though, which may lead to sub-optimal ad performance.
 
200x446    
220x90    
234x60 Also known as a half banner. This format can fit into small spaces.

This size does not tend to perform as well as others due to its small size and limited supply of available display ads.
 
240x133    
250x250 Also known as a square, this format can fit into smaller spaces that don't accommodate the larger rectangles.

The supply of available display ads for this ad size is generally limited though, which may lead to sub-optimal ad performance.
 
292x30    
300x31    
300x50 Mobile-friendly web size  
300x100 Mobile-friendly web size  
300x600 Sometimes referred to as a half page. This format provides a larger space for advertisers to get their message across and can offer users rich engagement.

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.
 
300x1050 Portrait IAB Rising Star**  
320x50 Also known as the mobile leaderboard. This format is a mobile-optimized banner.

These ads fill the width of a smartphone screen (e.g., iPhone, Android, BlackBerry 6, etc.).
320x100 Mobile-driven ad format that provides twice the height of standard mobile banners.  
468x60 Also known as a banner. This format can fit into smaller spaces that don't accommodate the 728x90 leaderboard.

The supply of available display ads for this ad size is generally limited though, which may lead to sub-optimal ad performance.

Can also be used with tablet-optimized pages.
960x90 Sometimes used for the Pushdown IAB Rising Star**  
970x66    
970x90 Sometimes referred to as a large leaderboard.

This size is ideal to showcase high-definition content such as videos, photos, animations, and applications.
 
970x250 Billboard IAB Rising Star**; high demand in Preferred Deals and Private Auctions.  

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* High-end mobile devices

** Learn more about IAB Rising Star ad units.

Regional ad sizes
Ad size Description Desktop & Mobile web* Mobile apps*
240x400 Also known as a vertical rectangle. Most popular size in Russia.  
250x360 Also known as a triple widescreen. Second most popular size in Sweden.

Performs well when placed along webpage sidebars.
 
580x400 Also known as a netboard. Very popular size in Norway.

Performs well when embedded within text content.
 
750x100 A very popular format in Poland performing well in both branding and direct response advertising campaigns.  
750x200 The most popular ad format in Poland used in 53% of advertising campaigns. Performs the best when is placed above or just below the menu of the website.  
750x300 The third most popular format in Poland (17% of advertising campaigns) and constitutes main alternative for 750x200.  
930x180 Also known as a top banner. Very popular size in Denmark.

Performs well when placed above main content.
 
950x90 Slider IAB Rising Star**; a top size in China.  
980x90 Popular European size.  
980x120 Also known as a panorama. Most popular size in Sweden and Finland. Can also be used as a substitute in Norway.

Performs well when placed above main content.
 

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* High-end mobile devices

** Learn more about IAB Rising Star ad units.

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