What does "whitelisted" mean in the context of ad placements?

In the context of ad placements, "whitelisted" refers to the practice of pre-selecting specific publishers or websites for ad placements. This means that advertisers choose certain trusted partners or platforms where they want their ads to appear, ensuring that their campaigns run in environments that align with their brand values and objectives.

By whitelisting, advertisers can maintain greater control over where their ads are shown, which helps protect their brand reputation and enhances the overall effectiveness of their campaigns. This selective approach contrasts with other practices, such as blacklisting, where certain publishers are explicitly excluded from ad placements. Whitelisting ultimately fosters a curated advertising strategy that can lead to better engagement and results.