Contact Us My Activity Community

How Do I Add Pre-Roll Video Advertisements to My Livestream Content?

Pre-roll Advertising: pre-rolls are promotional video messages that play before viewers reach the content they have selected to watch.

Here is a live player serving a pre-roll ad:

Here is the same player as it transitions to the live content:

To enable pre-roll advertisements on your Livestream account you will need the following:

  1. Enterprise Livestream Account-
  2. A Google DFP account-
  3. A video file or 3rd party VAST tag to traffic.

Google provides a helpful introduction to DFP here.

This article will walk you through integrating DFP with your Livestream Enterprise plan, and how to traffic pre-roll advertisements to your channel.

In your DFP account navigate to the Admin tab on the upper right
In the Network Settings menu, you will find your Network code. This is the number you will enter into your Livestream Enterprise account to integrate DFP and Livestream.

You can also find this the network code under your email address in the upper right corner, to the left of the search bar.

After this, you will need to create or use an existing ad unit. Navigate to the Inventory Tab towards the upper left corner.

This menu lists ad units. An ad unit name is what you enter into your Livestream settings to tell Livestream where to find your ads. If you wish to use a pre-existing ad unit, make sure that the ad unit you are using is for video, at either of the following sizes

  • 400x300v (video / VAST)
  • 920x508v (video / VAST)

To create a new ad unit, select New ad unit. Choose whether to add it at the current level or to nest it within an a selected, pre-existing ad unit (if you do not have any, it will say "One Level Below Network").


Enter the name and other relevant information.

Select Video (VAST) sizes, then select the field labeled Master. It is important to set your size to either 400x300v (video / VAST) or 920x508v (video / VAST). No other sizes are supported.

Additional settings on this page are optional. Select Save at the bottom of the page when you have finished.


To traffic an ad to your account you will need to create an order. To do this, go to the 'Delivery' tab on the upper left. From there, go to 'My orders,' then 'New order.'

Enter all of the relevant information in the New order and New line item sections. Be sure to mark the Inventory sizes as Video VAST and set the size as 400x300 or 920x508.

The Trafficker is someone within your organization who is responsible for uploading creatives and tracking the performance of this order and its line items. This person's user role must include the following permission: "Edit orders and line items, and submit for approval." That field will contain this person's email address.

Fill in the other required information, including campaign times and quantity of impressions, as desired. Then scroll down until you see the Add Targeting section. Select Inventory on the left, then Ad units. You will see the one you created. 

Click Include next to your ad units name, your ad unit will appear on the right in the Selected Criteria area.

Next, select Save and... at the bottom, click that says “Upload creative set.

From here, give this creative a name. Then you will see three different options for uploading a creative. Select Video.

Overlay, Skippable and Display Unit creatives are not supported by the Livestream player.

Fill in the information about the video you are uploading, then select Or Upload a New Asset...

You can save while it is transcoding your video. After that you will need to approve the order.

After approving the order, DFP will warn you that there might not be enough ad inventory. You can disregard this message and proceed because DFP does not have any historical data to forecast what is available.

Customers with an Enterprise account who are using the Livestream Studio software can use the same integration and setup to serve live mid-roll advertisements from the ad unit. This means that if you are producing an event and you want your viewers to receive an ad or multiple ads in the middle of the broadcast, you can trigger them from the Studio.

Have more questions? Submit a request


Please sign in to leave a comment.