Look-alike targeting is an advertising technique which consists of reaching out an audience similar to an advertiser’s customers.
The original profile of audience is determined via CRM data or website behaviors and is then matched against anonymous user pools by a dedicated marketing vendor.
Look-alike targeting allows advertisers to address prospects which are predicted to be similar to their existing customer base.
Facebook has a specific look-alike targeting offer called Lookalike Audiences.
An example of look-alike targeting offer:
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