Out-stream video ads

Benefits of Interstitial video ads:

• Clicks are only counted if the user clicks the Learn more button. This prevents inflated click through rates. The user is also protected from accidentally exiting the app.
• Ads are highly viewable since they are full screen. Active View can also be used to measure viewability.
• Interstitial video ads are only served when the user is connected to a wi-fi network, preventing excessive mobile data usage.
• When in an app, interstitial video ads are only served in between experiences, never interrupting the user or content.

Buying Best Practices:

Interstitial video ads are only served on mobile app, follow all mobile video buying recommendations. See below for key signals specific to interstitials:

Field name	Description
Placement	Describes where the video ad will play. Be sure to include interstitial in targeting. (Do not only target instream or pre-roll)
Player size (Width, height)	Multiple width / height pairs are passed in the bid request. However the first width / height pair is always identical to the screen size, which is important as these are full screen placements.
Allowed_Video_Formats	Describes the allowed video technologies for ads served in response to this request. Note that VPAID is not accepted for mApp requests
ScreenOrientation	The screen orientation of the device when the ad request is sent. Because interstitials are full screen, it's recommended that a portrait video creative is returned when the user is holding their phone vertically.
SkippableBidRequestType	A lot of interstitial inventory is skippable. Do not target non-skip only.
Viewability	Ad Exchange measures viewability using Active View across mApp inventory. Third party viewability vendors do not currently work in app environments.

Benefits of Rewarded video ads:

• Users make a conscious choice to watch the ad, inventory is explicitly opt-in "click to play".
• Improved performance from engaged users, high completion rates, and end cards with clear call to actions.
• Full screen video ad, can use Active View to measure viewability.
• User first experience:
  • User can close the ad at any time, they will be prompted to choose forfeiting the reward if they want
  • Countdown timer to show user how long the ad is
• Policies to ensure a great user experience and advertiser value, including these as well as others:
  • Rewards may not be converted into actual currency
  • No encouraging users to click on ads or misleading context

Buying Best Practices:

Rewarded ads are mobile app inventory. Follow all mobile video buying recommendations. See below for key signals and best practices specific to Rewarded video ads:

Field name	Description
Is_rewarded	Whether the user receives a reward for viewing the ad
Placement	Describes where the video ad will play. Rewarded ads are Insterstitial placements, make sure to include interstitial in targeting. (Do not only target instream or pre-roll)
Playback_method	click_to_play
Player Size (width, height)	Multiple width / height pairs are passed in the bid request. However the first width / height pair is always identical to the screen size, which is important as these are full screen placements.
Allowed_Video_Formats	Describes the allowed video technologies for ads served in response to this request. Note that VPAID is not accepted for mApp requests.
ScreenOrientation	The screen orientation of the device when the ad request is sent. Because interstitials are full screen, it's recommended that a portrait video creative is returned when the user is holding their phone vertically.
Viewability	Ad Exchange measures viewability using Active View across mApp inventory. Third party viewability vendors do not currently work in app environments.

Benefits of native video ads:

• Matches look and feel of the site or app, is a more seamless viewing experience for the user.
• There are many policies in place to make sure in-feed creatives are a good user experience.

Buying Best Practices:

For native video ads, follow all creative specifications and bidder recommendations.

Native Video ads will not include a video message in the bid request at this time.

Benefits of in-feed and in-article video ads:

• Gives buyers the opportunity to reach audiences in more moments throughout the day, even when the user is not necessarily watching video content
• Valuable on mobile where there is scarce real estate on the screen
• Bid with the same VAST response that you use to buy video on all other inventory
• There are many policies in place to make sure outstream video creatives are a good user experience. Including, but not limited to:
  • Ad attribution - all creatives will be clearly marked as such
  • The video cannot cause the page to reflow its layout before, during, or after the video ad renders
  • Creative only plays when in view; protects advertiser from false views and completion rates

Buying Best Practices:

Most in-feed video ads are served on mApp and most in-article video ads are served on mWeb and desktop. Follow all mobile video buying recommendations for mobile placements. See below for key signals and best practices specific to In-feed and In-article ads: 

Field name	Description
OpenRTB: mimes, imp AdX Signals: allowed_video_formats, allowed_ad_type	Use VAST. Do not use VPAID, MRAID, FLV, or WEBM
Placement: in_feed, in_article	Do not target In-stream, above the fold, pre-roll, mid-roll, or post-roll
OpenRTB: DeviceType, app AdX Signals: DeviceType, is_app	To determine if the creative is mWeb, Desktop, or mApp
OpenRTB Signals: w, h AdX Signals: width, heigh	If appropriate, read the player size for targeting
OpenRTB Signal: Metric AdX Signal: viewability	Use Active View for viewability. 3rd party viewability vendors do not work (no VPAID accepted)
OpenRTB Signal: ifa AdX Signal: advertising_id	Web placements have cookies, App placements have IDFA/ADIDs.