In DV360, advertisers can target the following Similar Audiences:
- More similarity (default): will prioritize targeting the most similar additional audiences.
- Balanced: is an intermediate option that balances similarity with additional scale.
- More reach: will prioritize expanding your reach.
The audience lists must have active users in the past 30 days and the list must contain 500 or more members.
Google says Similar Audiences combines the first-party audience data (such as site visitors or past purchasers), Google’s rich audience data, and an intelligent look-alike modeling algorithm to build a custom audience of users who are likely to engage, click, or convert with the advertiser ads.