Use ad distribution to select where you want your ads to show. You can choose to have your ads shown on the entire search network or subsets of it.
Within the search network, you have additional options. You can choose to have your ads shown on the following:
Ads on the search network may also be displayed in the Bing Smart Search results.
The ad distribution options Bing, AOL, and Yahoo search (owned and operated) only and Bing, AOL, and Yahoo syndicated search partners only apply to advertising set up in the following locations: Australia, Austria, Canada, Denmark, Finland, France, Germany, India, Ireland, Italy, Netherlands, Norway, Spain, Sweden, United Kingdom, and United States (excluding US territories). These settings will not show when you select outside of these markets, either through ad language selection or targeting. All other locations will use All search networks even if the other two options are selected. When you run the Publisher Performance report, you'll see websites based on these ad distribution rules. To learn how ad language and location targeting affects who sees your ads, see How does location targeting and ad language affect who can see my ads?
Although you set ad distribution when you create a new campaign, it is an ad-group level setting. Here's how to adjust your ad distribution settings in Microsoft Bing Ads Editor:
To see how to exclude websites that aren't giving you the results you want, see How to prevent your ads from showing to certain people.