Standard Formats (Mobile) Specs
In this section, you will find the IAB standard sizes and specs for standard formats available on mobile.
Standard mobile banners are available for the following:
Display campaigns only
Both managed and programmatic campaigns
Both mWeb and in-app campaigns
Mobile Sizes Available & Specs:
Mobile Interstitial 320x480
Size (px): 320x480
Format: PNG, JPEG, or GIF
Initial Load: 200 KB
Subload: 400 KB
Static image / backup file (PNG/JPEG): 200 KB
Aspect Ratio: 2:3
Half page or double rectangle 300x600
Size (px): 300x600
Format: PNG, JPEG, or GIF
Initial Load: 250 KB
Subload: 500 KB
Static image / backup file (PNG/JPEG): 250 KB
Aspect Ratio: 2:1
Medium Rectangle or MPU 300x250
Size (px): 300x250
Format: PNG, JPEG, or GIF
Initial Load: 150 KB
Subload: 300 KB
Static image / backup file (PNG/JPEG): 150 KB
Aspect Ratio: 1:1
Mobile Banner 300x50
Size (px): 300x50
Format: PNG, JPEG, or GIF
Initial Load: 50 KB
Subload: 100 KB
Static image / backup file (PNG/JPEG): 50 KB
Aspect Ratio: 6:1
Mobile Leaderboard 320x50
Size (px): 320x50
Format: PNG, JPEG, or GIF
Initial Load: 50 KB
Subload: 100 KB
Static image / backup file (PNG/JPEG): 50 KB
Aspect Ratio: 6:1
Large Mobile Banner 300x100
Size (px): 300x100
Format: PNG, JPEG, or GIF
Initial Load: 50 KB
Subload: 100 KB
Static image / backup file (PNG/JPEG): 50 KB
Aspect Ratio: 3:1
Large Mobile Leaderboard 320x100
Size (px): 320x100
Format: PNG, JPEG, or GIF
Initial Load: 50 KB
Subload: 100 KB
Static image / backup file (PNG/JPEG): 50 KB
Aspect Ratio: 3.2:1
Large Rectangle 336x280
Size (px): 336x280
Format: PNG, JPEG, or GIF
Initial Load: 150 KB
Subload: 300 KB
Static image / backup file (PNG/JPEG): 150 KB
Aspect Ratio: 1.2:1
Best Practices
Put necessary elements only (logo, headline, CTA)
Text needs to be legible and concise
CTA: 2/3 words maximum with an action verb (ex: “Buy now”, “Discover”, “Learn more”)
Use the brand guidelines (fonts, colors...)
Assets needed for custom resizing by Ogury Design Team:
High-resolution working files (layered PSD)
Logos in vector format (PSD, AI, EPS, or SVG)
Campaign copy
Fonts
Brand guidelines
Design Turnaround Times:
Initial Creation: Minimum of 2 business days
Revisions: Minimum of 1-2 business days depending on complexity
Maximum 2 revisions per creative
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