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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