When a device connects to a radio stream, it typically sends technical information as part of the stream request. This information helps reporting systems understand what type of device or platform generated the listening session.
Depending on the platform, this may include:
- Device type
- Operating system
- App or player information
- Platform identifiers
- User agent data
- Listener identification information
This allows reporting systems such as Radar to classify listening activity across environments such as:
- Mobile apps
- Web players
- Smart speakers
- Connected cars
- Third-party aggregators
Modern apps and players generally provide richer and more consistent device information than older platforms, improving reporting quality and platform analysis over time.
However, not all listening platforms provide the same level of visibility. Some third-party devices and aggregators may supply limited identification data compared to first-party apps and websites.
For more information on how streaming platforms classify listening activity, see: Understanding Digital Radio Metrics Why Metrics Can Change After Player or App Upgrades