Lookalike Audience

Definition:
A lookalike audience is a group of users who share similar characteristics or behaviors with an existing audience, such as converters or website visitors.

Why it matters:
Lookalike audiences enable advertisers to expand their reach to new, high-potential users while maintaining targeting precision based on real data.

How it works:
Ad platforms like Meta and Google use algorithms to analyze a source audience and find users with similar profiles (demographics, interests, behavior).

Best practices:

• Use high-quality source audiences (e.g., high LTV customers)

• Test different similarity levels (1%, 5%, 10%)

• Exclude existing customers to prevent overlap