Display Ad Specifications

Display ads run in standard banner sizes across the Topple publisher network, priced on Dynamic CPM (cost per thousand impressions set by real-time auction demand).

1. 1Formats: JPG, PNG, or GIF.
2. 2Maximum file size: under 150 KB.
3. 3Sizes: 970×250 (billboard), 728×90 (leaderboard), 300×250 (medium rectangle), 300×600 (half page), 320×100 (mobile banner — mobile only).

Video Ad Specifications

Video ads run as short-form video placements, billed only after a user watches 10 continuous seconds (CPV — cost per view). Partial views are not charged.

1. 1Format: MP4.
2. 2Minimum length: 10 seconds. No fixed maximum, though 15–30 seconds typically performs best.
3. 3Maximum file size: under 5 MB.

Display vs. Video — Which Should I Use?

Display is the right choice when you want maximum efficiency and reach per dollar — it is the more cost-effective format for most advertisers. Video is the right choice when brand impact, sight-and-sound storytelling, or high engagement rates are the priority. Many advertisers run both simultaneously in separate campaigns to cover both goals.

If Your Creative Isn't Serving

A spec violation is the most common reason a creative won't serve — wrong format, dimensions, or file size. There is no rejection notice in the dashboard. If a creative is not delivering and the campaign is Running, compare the file against the specs above and re-upload. See Why Isn't My Creative Serving? for a step-by-step diagnosis.