Moloco DSP prioritizes technical precision over creative beauty. If your creatives don't meet specifications, they won't pass moderation. Even if technically compliant, weak visuals will trigger the algorithm to throttle delivery, increase bids, and waste your budget.
This guide covers banner, video, and native ad requirements to ensure your creatives launch successfully, train the algorithm effectively, and scale efficiently.
Banners in Moloco: Avoiding Wasted Spend
In Moloco DSP, banners aren't just visuals - they're input signals for machine learning models. Non-compliant banners get rejected or suffer reduced traffic with higher CPCs.
Technical Specs:
Format: JPEG/JPG/PNG/GIF
Size: ≤500KB (GIFs ≤1MB)
Recommended Dimensions:
300×250
320×480
320×50
728×90
There are also additional optional sizes — they can expand the coverage, but they have less impact. They can be viewed in the size chart by country.
Every banner must include:
Brand logo. Without it, the creative often won't enter rotation. Don't place it in the top-right corner - that's where the DSP info button appears.
CTA button. Use specific phrases: "Download", "Play", "Get discount" - not "Learn more". Button color should contrast the background, size at least 10pt, legible.
Minimal visual clutter. Don't overload with text. The banner should be instantly readable.
Element order. Logo → Main text → Visual → CTA The Moloco DSP algorithm better interprets such banners.
High-quality images. Only sharp, uncropped images without "photo filters" or glare. Use plain text without effects.
Common banner mistakes causing immediate rejection:
Font too small (<10pt)
Too thin or bold fonts
Faded CTA without button
Off-center logo blending with background
Low resolution or cropped images
Strict compliance helps the algorithm learn faster and launch advertising campaigns without losses. For EU/US campaigns, create banners in all four standard sizes immediately. This gives Moloco more flexibility and increases delivery chances. Don't overdesign - use templates, follow structure strictly, check file size - then upload.
Video in Moloco: Creating Content That Scales
Video is Moloco's primary creative type. The algorithm tracks not just clicks but behavior: when users pause, where they click, what engages them. Thus visual effects matter less than structure and clear messaging. Moloco's video requirements:
Format. .mp4
Orientation. Vertical, horizontal, square - any aspect ratio.
Minimum size. From 640px, preferably from 720px.
Duration. 6 to 120 sec. Videos under 30 sec loop to 60 sec.
FPS. From 24.
File. Up to 300 MB. Compresses to 13 MB after upload.
When the video ends, a CTA end card appears with its own requirements:
Format. JPEG, PNG, GIF.
Minimum size. From 320px width/height. File. Up to 500 KB for static, 1 MB for GIF.
Technical specs are just the foundation. Video is a powerful data transmission tool. The algorithm reads each frame as a data signal. The most effective creatives communicate instantly: a sharp gesture, scroll, face, or interface makes the purpose immediately clear.
The "long intro → end CTA" format doesn't work here. Moloco tracks user interaction moments. The earlier the CTA appears - the better. It should be noticeable, simple, and goal-relevant.
Authenticity matters: hand-held shots, real app screens, minimal graphics. Such videos feel like organic content rather than ads, so the algorithm promotes them more.
Avoid intros, meaningless animations, or text replacing action - these reduce engagement. Moloco isn't YouTube. Storytelling isn't key. The video must quickly explain: what's the product, why it's needed, and how to get it.
Native Ads in Moloco DSP
Native in Moloco isn't just text with an image. It's a full block integrated into app interfaces, where everything matters - from headlines to icon size. Technical requirements:
Headline. Up to 70 chars.
Description. Up to 90 chars.
"Sponsored By" text. Up to 25 chars.
CTA text. Up to 100 chars.
App icon. PNG, JPG, GIF, from 256×256 px, up to 500 KB.
Images. 1200×628, 720×1280, up to 500 KB.
Video. MP4, 6-100 sec, min 640 px, up to 10 MB.
Thumbnail. JPEG, PNG, GIF, up to 500 KB, matching video ratio.
Key insight: Moloco places native ads differently across apps. Sometimes your headline dominates, other times the image or button does. Thus all components must work cohesively.
What definitely won't work:
Screaming headlines
Clickbait
Deceptive hooks
For example, "Download for bonus" gets flagged as aggressive advertising. Neutral styles perform better - headlines as news, descriptions highlighting benefits.
Same logic for images: they should extend the message, not create visual noise. Clean interface screenshots, gameplay scenes, or real app footage work best. Renders with excessive text/details break the experience.
Good native ads aren't creative for creativity's sake. They're clear, logical, restrained blocks that adapt to environments, blend naturally, yet effectively drive installs.
Moloco Interface: Proper Creative Uploads Without Delivery Delays
Moloco isn't Facebook. Precise structure is crucial - one upload mistake can stall campaigns. Creatives upload via UI or CSV. API requires direct contracts. For faster starts without owned accounts, use RentAcc - they provide access to proven Moloco accounts with solid history and status, plus help select optimal GEOs and launch campaigns.
Each banner/video/native ad uploads separately. The algorithm tests them automatically, but mixing video and banners in one group slows learning.
Best practices:
Split by type and goal (installs vs retargeting)
Batch uploads help identify winning variants faster
Manual A/B testing required (duplicate campaigns)
Results tracking isn't automated - collect data manually
Post-upload, you can only edit:
Names
GEOs
Bids
Creative activation status
File/button/order changes require reuploads.
For faster scaling:
Upload identical creatives across multiple ad groups
Maintain clean structure: clear naming, ≤10 creatives/campaign
Manually check previews for proper cropping
Conclusion
Moloco isn't about visuals for clicks. It's a DSP platform where every creative element becomes an algorithm signal. A banner without a logo, a slow—start video, or a native with an "advertising" title - all this prevents Moloco from learning and hits the campaign results.
For faster launches and fewer mistakes, rent accounts via RentAcc. This saves time and lets you focus on creatives and scaling.
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