Over the last several years, brand safety standards became increasingly important in the advertising industry. After a series of scandals involving ads being shown alongside undesirable content, buyers started pulling budgets from sites that represent brand safety risk.
As most advertisers buy impressions across tens of thousands of sites, and it is very hard and expensive to monitor all the content, buyers usually maintain domain-level white and black-lists.
Having access a brand safety technology gives publishers an advantage, significantly reducing chances of being blocked by buyers.