Examples
Recommended default creative dimensions
Width: 1920px
Height: 1080px
Ad Viewport
Width: 100% of browser width
Height: 100% of browser height
Safe Zones
To maximize compatibility across publisher sites, add a 20% (of total creative height) safe zone to the top and bottom of your creative. These areas should be free of any important content (text, logos, CTA's etc), as they may be overlapped by publisher page elements.
Format description and guidance
Double Midscroll is a high impact responsive format that appears mid-way down a publisher page. The format is revealed as the user scrolls down past page content, and remains visible until a scroll distance equal to 2x the window height has been reached. Scroll events can be captured and used by the creative to power animations and transitions between content. For more information about using scroll events, see our [scroll events documentation].
The format must be built so that all the imagery and content scales to fit the browser window.
For more information about building responsive creative, check out our Guide to Responsive HTML and building responsive creative guide.
Max total file weight
3.5 MB (recommended)
For best performance, all assets should be compressed and optimized to the lowest possible file weight.
For heavier video files, we offer a solution using SeenThis technology for an additional CPM â€" [contact us for more information and pricing].
Animation
User/scroll initiated animation: No limits on loops or animation duration.
Automatic animation: maximum of 5 loops. Maximum animation time 30 seconds. May vary by publisher.
Asset type
Responsive HTML5 (either Adnami hosted by sharing a zip-file or served via 3rd party tags). HTML must be minified and optimized for polite load.
Click tags and tracking
For Adnami hosted creative, see our clicktags and tracking guide.
For creatives hosted using 3rd party tags, use the appropriate click methods and trackers for that provider: examples.
Audio
Any audio must be user-initiated.
Template Details
Automatically synced on 2026-02-11T14:27:19.581Z. This section documents the canvases, banner templates, and trafficking controls directly from the source configs.
Canvases: Desktop Double Midscroll
Banner templates: Simple Image & Streaming Video
Use the tables below to configure the linked banner templates. Each parameter definition is pulled straight from the template config, ensuring the spec always documents the latest functionality.
Simple Image & Streaming Video
A 2x fullscreen image/video template for double midscroll · Version 1.0.0
General
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Click URL | Destination URL triggered when the user interacts with this element. Include https:// and any tracking parameters. |
Frame 1
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Background (Image) | Image asset for frame 1. Add only an image or a video, not both. | ||
| Background (Video) | Streaming video asset for frame 1. Add only an image or a video, not both. | ||
| Background Position | Anchor Point used to position the background asset within the frame. | mid-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right |
Frame 2
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Background (Image) | Image asset for frame 2. Add only an image or a video, not both. | ||
| Background (Video) | Streaming video asset for frame 2. Add only an image or a video, not both. | ||
| Background Position | Anchor Point used to position the background asset within the frame. | mid-center | choices: top-left, top-center, top-right, mid-left, mid-center, mid-right, bot-left, bot-center, bot-right |
Config
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Transition Direction | Sets the direction of the transition between the two frames. | Vertical | choices: Vertical, Horizontal |