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This is because buyers tend to build creative for these sizes and run creative with these sizes, as such we recommend using the below ad sizes to ensure the best chance to monetize your inventory.

Recommended Ad Sizes

• Leaderboard
  • 970x250
  • 970x90
  • 728x90
• Mobile Leaderboards
  • 300x50
  • 320x50
• Banners and Skyscrapers
  • 300x250
  • 300x600
  • 300x1050
  • 160x600
• 300x50
• 320x50