← GlossaryPaid media
Lookalike Audience
Also known as · Similar Audience
Algorithm-built audience modeled on the characteristics of an existing customer list or pixel-converted audience.A lookalike audience is built by giving an ad platform (Meta, Google, TikTok) a seed audience — usually a customer list or pixel-converted users — and asking it to find similar users. Quality depends entirely on seed quality; small or noisy seeds produce poor lookalikes. 1-3% lookalikes typically outperform broader 5-10% tiers.
Related terms
Other paid media terms.
ROAS
Revenue divided by ad spend for a given period or campaign.
CPC
Average paid amount per click in a campaign or ad set.
CPM
Cost per 1,000 ad impressions delivered.
CTR
Clicks divided by impressions, expressed as a percentage.
LSA
Google's pay-per-lead format for local service businesses, showing above standard search results.
CAPI
Server-side conversion event sending that bypasses browser-side tracking limits.
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