A segment type that allows for retargeting on the next page view. The segment evaluation is done in-browser rather than server-side, so it is handled differently than other segment types. Real-time segments are often used for site personalization, owned and operated audience targeting, and may also be sent to real-time activation partners.
Please note that only data that is collected in the browser can be used for Real-Time segments, page attribute, events etc. Data from first-party imports or 3rd party providers can not be used in Real-Time segments.