Double Midscroll Mobile



Recommended default creative dimensions

Width: 1080px
Height: 1920px

Ad Viewport

Width: 100% of browser width
Height 100% of browser height


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, see our [building responsive creative guide].

Max total file weight

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 – [contact us for more information and pricing].


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.


Any audio must be user-initiated.

Supported 3rd party providers

Campaign Manager 360, Adform, Sizmek, Adjust

Supported Ad Verification

Adnami supports impression and viewability tracking from 3rd party providers, such as IAS, MOAT, DoubleVerify & Userneeds.