Banner Ad Units for Publishers: Specs and Placement
Introduction
Banner units are one of the most common publisher formats. This article covers basic specs and recommended placements without going into other formats.
Recommended Banner Sizes
Common banner sizes include:
- 728x90 for desktop headers.
- 300x250 for in-content or sidebar areas.
- 320x50 for mobile headers or footers.
Always check the size options supported in your ad unit creation screen.
[EDITOR: Add screenshot of the ad unit form showing available banner sizes]
Placement Guidelines
- Use a 728x90 near the top of desktop pages, above or just below the main content.
- Use 300x250 units inside long articles or in a clear sidebar zone.
- On mobile, place 320x50 units at the top or stuck to the bottom, avoiding overlap with navigation.
Related Articles
- Creating Your First Ad Unit as a Publisher
- How to Integrate Publisher Ad Code on Your Site
- Optimizing Ad Density on Publisher Pages
- Monitoring Ad Performance in the Publisher Dashboard
Updated on: 24/11/2025
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