The product advertising glossary
What is Lookalike audience?
A lookalike audience uses a source audience as a signal to find other people with similar characteristics within a platform’s system.
By Drizzle team
A practical example
A source made from verified purchasers asks a different question from a source made from all site visitors.
How to use it
Evaluate source quality, available consent, and current platform controls. Similarity does not guarantee intent, and a small or noisy source can weaken the signal.
Put it in a creative brief
Write down the event, asset, or workflow you mean by Lookalike audience before sharing a brief or report. For campaign measurements, keep the source and reporting window with the number. For creative work, attach an example so the team can assess the same thing.
Explore the creative testing guide, calculate campaign results with the ad metrics calculator, or return to the glossary.