Lookalike Audience
Definition
A targeting option that identifies Reddit users whose behaviors and interests are statistically similar to a seed audience — such as existing customers or website visitors — to expand campaign reach toward probable new customers.
Context
Reddit requires a minimum matched seed audience size for lookalike generation — typically 1,000 or more matched users. For brands with small customer lists, Website Custom Audiences (site visitors) or Engagement Audiences often produce more usable seed pools than email lists alone. Match rates on CRM uploads typically range from 30–60% depending on audience demographics.
Relevance to Reddit
Upload high-quality seed data (existing customers, high-LTV segments, converted leads) for the most accurate lookalike results. The quality of the resulting audience scales directly with seed quality and size. Use lookalikes to scale beyond the subreddit or keyword audiences that offer the most precision.
