Native Stream (3rd Party Programmatic)
Combines a variety of assets provided by advertisers in order to produce rich, compelling ad experiences. Native Stream ads are displayed alongside page content, which provides interaction and engagement superior to traditional display advertising.
Native Stream ads are clickable ads that fit the form and function of the content around them, such as within the content stream on programmatic inventory across private marketplaces and open exchanges.
Deliverables
| Ad components | File type | Dimensions | Max file size |
|---|---|---|---|
| Ad Title (Headline) | Text | Up to 50 characters | — |
| Ad Description | Text | Up to 90 characters (See Link for SSP limits in the Technical Capabilities section) | — |
| Advertiser Name | Text | Up to 25 characters | — |
| Click-Through/Landing Page URL | Text | Up to 1024 characters | — |
| Creative/Large Image | JPG or PNG | 1200 x 627 (1.9:1 aspect ratio) | 2 MB |
| Mobile Web/Basic Image | JPG or PNG | 627 x 627 | 2 MB |
| Mobile Image | JPG or PNG | 200 x 200 (1:1 aspect ratio) | 2 MB |
| Video (optional) | MP4, M4V or MOV | Recommended: 640x360 (16:9); Also allowed: 640x480 (4:3) | 300 MB |
| Call-to-Action (optional) | Text | Up to 12 characters (default is "Learn More") | — |
General
- Ad copy may be truncated across desktop, mobile and tablet devices.
- Above max character limits include spaces.
- *To view Ad Description Character Limits by SSP, please click HERE.
Screen Support
- Desktop
- Mobile
- Tablet
3rd Party Tracking Guidelines
- Max of one 3rd party click tracker URL
- Max of three 3rd party impression tracking pixels; only one Javascript impression tracking pixel is permitted if running on TripleLift, ShareThrough, or Kargo.
Images
Creative/Large Image: 1200x627 pixels
Larger Images may be submitted as long as they maintain the 1.91:1 aspect ratio.
Mobile Web/Basic Image: 627x627 pixels
Mobile Web/Basic Image is derived from the Main/Large Image. Advertisers have the option to provide an alternate image. 1:1 aspect ratio highly recommended.
Animation
- Animation only allowed for video
- Minimum length: 5 seconds; Maximum length: Unlimited (15 seconds is recommended)
Audio
- Audio is muted by default
- Audio is permitted upon user interaction with the ad
- Closed captioning is allowed
Call-to-Action
Must choose from a range of call-to-action text, detailed below:
Ad Copy
Images
- We highly recommend that no ad copy or text appear in the image. There are other elements in the ad execution (title, description, etc.) that provide ample opportunity for ad copy to accompany the image.
- Images may not contain more than 20% text or advertiser logo.
- Font size must be between 30 and 45 points.
- Opt for bright, eye-catching images. Avoid black and white images, as they will tend to blend in with the other elements of the galleries around them.
- Images should lean towards simplicity over fine, small details.
- The resolution of the image is important. Low-quality images will appear blurry and adversely affect the impact of the ad.
Video
Avoid heavy text in the bottom 1/5 area of the video. On some properties and devices, the ad title could overlay the video in that space.
Click-Through/Landing Page URL
Campaigns targeting all three screens should include a landing page URL that recognizes and adapts to the screen it is displayed on.
Ad Vendor
Ads must be site served.
Ad Policies & Guidelines
Ads must comply with Global Yahoo Advertising Policies.
3rd Party Ad Tags & Trackers
Native Ads served through open exchanges & private marketplaces are not allowed to serve via 3rd party vendor ad tags. However, approved 3rd party vendor trackers (e.g. click, impression, etc.) are allowed across ad formats.
For a list of approved 3rd party vendors, please visit the 3rd Party Vendor List.
HTML5 Guidelines
HTML5 ad specifications must follow HTML5 Guidelines.
SSL Compliance
Ads & 3rd party vendors must be secure and SSL compliant.
Creative Timelines
Refer to Creative Submission Guidelines for ad design & build SLAs.
Open Exchanges & Private Marketplaces