Sites with disabled impressions
By experimenting with your ad campaign settings, you can prevent ads from being served on selected sites in the Yandex Advertising Network and in ad exchanges.
On the campaign edit page, open advanced settings. In a “Unified performance campaign” or “Text & Image ads campaign”, go to Platforms under Disable impressions. For other types of campaigns, to the Sites with disabled impressions section.
You can't disable impressions in Yandex Search-related projects.
If you add a site to the blocked list, campaign ads won't be served on either content pages of this site or search results for it. If you block impressions for an ad exchange, campaign ads won't be served on any of the sites in that ad exchange. However, if a site from a blocked ad exchange is in YAN or another ad exchange and you did not block that site individually, then ads will continue to be served on the site.
You can't add blocked sites in the Campaign Wizard.
To see what sites your ads were served on, go to Report Wizard and use the Ad platform name cross section.
Excluding sites and ad networks may negatively affect the performance of your ad campaign and cause you to lose some of your potential audience.