You can blacklist/whitelist a domain in the “Domain list” field, under the Audience tab when creating or modifying a campaign.
To target or exclude specific domains, you need to fill in the domain name exactly the same way it is displayed on the stats page on our platform. Please keep in mind that if there is a slash (“/“) at the end of the domain on the stats on our platform, it needs to be added to the website name when blacklisting it.
Please make sure that syntax is correct i.e. "-exclude.com". The minus "-" is to blacklist, otherwise just adding the name you will whitelist it.