Ads glossary
Lookalike audience
An audience of new people who resemble your existing customers.
A lookalike audience starts from a source audience, such as your customer list or people who bought through your pixel, and the platform finds other people with similar characteristics. Meta, TikTok and Snapchat offer lookalikes, usually with a size setting: a smaller lookalike is closer to the source, a larger one reaches more people.
Lookalikes work best from a source of good customers, for example buyers rather than all visitors.
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