When you are building a segmented AB test or a personalized experience, one of the biggest initial hurdles is knowing whether your audience segment is large enough to be impactful. You do not want to spend time crafting the perfect tailored messaging only to find out that it reaches less than 1% of your traffic.
To take the guesswork out of your targeting, we are excited to announce our new audience estimator feature.
The audience estimator helps you understand how many users match an audience criteria. It estimates what percentage of your user base would qualify for the audience at the moment you generate the estimate. By providing immediate feedback while you refine your criteria, the segmentation process becomes much faster and more informed.
Segment visitors based on conversion intent and discover high-value segments to drive more revenue and higher ROI.

How the estimator works
The audience estimator is available whenever you create or edit an audience, whether you access it from the experiences settings or from the audiences list.
Under the hood, it analyzes a representative sample of user profiles from the last 30 days and evaluates how many of them match your audience criteria. Because it relies on sampling rather than evaluating every profile individually, it provides results in seconds, even for very large datasets.
Interested in learning more about how we do that? Our engineering team wrote a detailed blog post about it.
Once generated, the estimator card provides four key pieces of information:
- Estimated users: The estimated number of users who currently match the audience criteria.
- Estimated audience size: The estimated percentage of your user base that matches the audience criteria.
- Margin of error: The confidence interval for the estimate, indicating how precise the result is. Very small audiences will naturally produce less precise estimates than larger ones.
- Matching samples: Example user profiles that match the audience criteria, helping you manually validate whether the audience is targeting the expected users.
Give it a try
The audience estimator is available now for all accounts on the Growth and Scale plans. Log in to your workspace, open the audiences list, and start uncovering the potential reach of your segments today.