Learn about tracking

Start with an ordinary action: reading a story or checking the rain. These pages follow how that action can become a record on a server.

1. How tracking works: from a tap to an event and an upload.
2. How identifiers connect activity: why a random code can still describe one person or installation.
3. Location and useful service traffic: what a weather or navigation app still needs to share.
4. Consent, advertisements and tracking: why these are separate controls.

Then pick a service you have seen named, or find your app. The glossary explains unfamiliar terms as you encounter them.