A lookalike audience is a targeting tool that finds new users who share similar characteristics with your existing customers or high-value visitors. Ad platforms like Meta and TikTok analyze patterns from a source audience, such as past buyers or email subscribers, and use that data to identify other people likely to respond the same way.
It’s one of the most efficient ways to scale campaigns without starting from scratch. Instead of guessing who to target, you’re letting the algorithm do the heavy lifting based on real-world performance data.