An ad quality rater is a person who evaluates the quality of advertisements that appear on search engines and other online platforms. These raters are responsible for ensuring that the ads are relevant, trustworthy, and useful to the user. They assess various aspects of the ad, including its content, language, and overall user experience. Ad quality raters play a critical role in maintaining the integrity of online advertising and ensuring that users receive the best possible experience when interacting with ads. They work closely with search engine companies and advertising agencies to provide feedback on how to improve ad quality and relevance. Overall, ad quality raters are essential in ensuring that online advertising is effective, relevant, and trustworthy for users.