Examples
Recommended default creative dimensions
Width: 1080px
Height: 1920px
Ad Viewport
Width: 100% of browser width
Height: 80% or 100% of browser height
Safe Zones
Content-free safe zones should be added to the top and bottom of your creative. The size of the safe zones required will depend on the setup of midscroll placement:
| Midscroll Height (Publisher Dependant) | Recommended Safe Zones (Top & Bottom) |
| 100% | 10% |
| 80% | 20% |
| 50% | 30% |
Safe zones should be free of any important content (text, logos, CTA's etc), as they may be overlapped by publisher page elements.
Note: Some publisher sites have a nav bar that covers the top of the creative - please check the publisher guidelines and make additional allowances with your safe zones if required.
Format description and guidance
Midscroll is a high impact responsive format that appears mid-way down a publisher page (in-between page content). It must be built so that all the imagery and content scales to fit the browser window. It is typically served to appear at 80% of the available browser window height, but can also be 50% or 100% (dependent on publisher). For more information about building responsive creative, check out our Guide to Responsive HTML and building responsive creative guide
All creative assets (images, videos, scripts etc) used by your banner must be included within the creative Zip-file. Linking to assets hosted on external severs is not permitted, and may result in your ad being blocked by some vendors. The only exception to this rule is for webfonts hosted by fonts libraries for licensing purposes, such as Adobe Typekit, Google Fonts, MyFonts etc.
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Max total file weight
1 MB (recommended)
For best performance, all assets should be compressed and optimized to the lowest possible file weight.
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 creatives, see our clicktags and tracking guide.
To enable video tracking metrics, see our API for measuring VTR guide.
For creatives hosted using 3rd party tags, use the appropriate click methods and trackers for that provider examples.
Other Requirements
Do not link to any files or scripts hosted on external domains. All assets used should be included within the creative zip-file, or hosted on Adnami domains. Linking to resources on non-approved vendors may result in ads being blocked by Google Ads Manager and DV360.
Audio
Any audio must be user-initiated.
Template Details
Automatically synced on 2026-02-11T14:27:19.536Z. This section documents the canvases, banner templates, and trafficking controls directly from the source configs.
Canvases: Mobile Midscroll
Banner templates: Zip File, Third Party Tag
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.
Zip File
Empty format only containing zip contents. · Version 1.0.1
General
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| File | Upload a zipped HTML bundle (HTML/CSS/JS plus assets) that powers the file. Keep the archive within platform size limits. | ||
| 1.0 Click Url (optional) | Destination URL triggered when the user interacts with this element. Include https:// and any tracking parameters. | ||
| 1.1 Add automatic click button | Adds an invisible button on top of the creative that opens the Click URL. Note this can block interaction with the creative, for interactive creative set to Disabled and ensure click URLs are implemented at creative level. | Enabled | choices: Enabled, Disabled |
Third Party Tag
Third party tag or script · Version 1.0.0
General
| Parameter | Purpose | Default / Choices | Notes |
|---|---|---|---|
| Click url (optional) | Destination URL triggered when the user interacts with this element. Include https:// and any tracking parameters. | ||
| Creative Positioning | Controls how the creative positioning aligns inside the frame. Pick the focal point that keeps the subject in view. | default | choices: default, center | |
| Third Party Tag | Ad server or measurement tag injected for the third party tag. Paste the snippet exactly as provided. | ||
| Background Colour | This colour will be visible in the behind the if there is any empty space. | #00000000 |