Impressions for video ads will be considered valid and counted if the following three conditions are met:

• more than 50% of the area of the player was in the visible area of the browser,
• the player was located in the visible area for at least two seconds,
• the size of the player was determined to be at least 320×180 or 180×320 pixels.

User contacts with your video ads will be counted as valid impressions in players of the indicated size or larger.

If the player with the video ads at first appear on the whole page, but then, as the user scrolls down, collapses completely or to a size smaller than the one specified, you will not pay for this impression.

We work non-stop to improve the quality of the Yandex Video Network. The new requirements for player sizes on ad sites make it possible for advertisers to only pay for real contacts with their target audience.