Active View measurement

The IMA SDK must be able to tell when ads are visible to users so that it can send the correct signals back to the ad server. IMA uses Active View reporting to measure the viewability of ads. This guide explains how Active View reporting works with IMA, as well as how to verify that the SDK is able to correctly capture viewability signals.

How Active View reporting works with the IMA SDK

1. The publisher designates a video element when creating the StreamManager.

2. As long as the video element is viewable and unobstructed when the StreamRequest is made, Active View receives measurements on that element.

Verifying that the SDK can measure ad viewability

To check whether that the SDK is able to capture viewability signals, look for instances of active_view_vide_measurable_impression in the HTTP requests and check for the mtos parameter. For more information, see Monitor Active View measurement.

The following sample stream is available for viewability testing:

CMS ID: "2556080", video ID: "tears-of-steel-omid"

To test using this stream, first check the network logs for ima-test-verification.js to be downloaded and then a ping fired to https://pagead2.googlesyndication.com/pagead/gen_204 at the start of ad playback.

Note: If you use your own video display and maintain full control over playback, you might need to modify your layout to ensure that the necessary metrics are being correctly returned. For additional assitance, reach out to us on the IMA support forum.