Responsive Display Ads · Assets, Formats & Best Practices

Responsive Display Ads are the primary ad format for Google Display campaigns. Rather than uploading fixed-size banner images for every placement size, advertisers provide a library of assets — images, logos, headlines, descriptions, and optionally video — and Google automatically assembles them into the appropriate format for each available placement.

The GDN supports over 20 ad sizes from small mobile banners (300x50) to large desktop leaderboards (970x250). Manually creating and uploading individual ads for every size is impractical for most advertisers. RDAs solve this by generating placement-appropriate ads automatically from your asset library.

Google tests combinations of your assets and learns which perform best for different placements, audiences, and contexts. The system continuously optimises toward higher CTR and conversion rate based on performance data accumulated across the campaign.

Landscape images (1.91:1)

• Minimum: 600 x 314 pixels
• Recommended: 1200 x 628 pixels
• Maximum file size: 5MB
• Formats: JPG, PNG, GIF (static only)

Square images (1:1)

• Minimum: 300 x 300 pixels
• Recommended: 1200 x 1200 pixels
• Maximum file size: 5MB

Safe zone — critical for RDAs

Google crops your images to fit different placement dimensions. The safe zone is the central area of your image that will always remain visible regardless of cropping. Keep essential elements (product, face, key text if any) within the central 80% of the image. Do not rely on edge regions for critical content — they may be cropped in some placements.

Image content policy

• No text overlays covering more than 20% of the image — text-heavy images are rejected or underperform
• No borders, padding, or white space framing around the image content
• No blurry, low-quality, or pixelated images
• No click-bait or misleading imagery

RDA text assets follow the same principles as RSA assets in Search: each asset should stand alone, use the full character limit, and cover different messaging angles. For Display, the additional consideration is that your headline must work with visual creative — the user sees both simultaneously in native and inline placements.

The long headline (90 characters) is distinctive to RDAs — it is used in native-style placements where a longer headline can replace the description. Write the long headline as a complete, compelling sentence that communicates the core value proposition without requiring the description.

Headline variety recommendations

• Include at least 1 headline with your primary keyword or product category
• Include at least 1 benefit-focused headline
• Include at least 1 CTA headline ("Shop Now — Free Returns")
• Include at least 1 social proof headline if applicable
• Write each to work independently — Google shows 1 headline in most display placements

Asset Strength for RDAs works the same as for RSAs: Poor, Good, Excellent. Google evaluates the quantity, variety, and quality of your assets. Key factors:

• Providing both landscape and square images (not just one ratio)
• Providing portrait images for Stories-format placements
• Uploading 3+ images per ratio
• Using the full 5 headlines and 5 descriptions
• Including a video asset (even a 15-second product video significantly improves reach)
• Logo asset provided

• Show the product clearly. Display ads have very short attention windows — the product or value proposition must be immediately obvious. Complex scenes or vague lifestyle imagery underperforms direct product shots.
• Use people where appropriate. Images featuring people's faces and emotions consistently outperform product-only images in most categories, particularly for consumer goods and services.
• High contrast and visual distinctiveness. Display ads compete for attention against surrounding page content. High-contrast images with clear subject-background separation perform better than low-contrast, busy compositions.
• Minimal text in images. Google's policy limits text to under 20% of image area. More importantly, text in images reduces the system's ability to crop and adapt the image to different placements.
• Upload multiple creative approaches. The RDA system tests your assets. Providing images with different compositions, subjects, and visual styles gives the system more to test and produces better long-term performance than providing only similar-looking variations.

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