# cross-device tracking

> tracking of users between different devices

**Wikidata**: [Q25339860](https://www.wikidata.org/wiki/Q25339860)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Cross-device_tracking)  
**Source**: https://4ort.xyz/entity/cross-device-tracking

## Summary
Cross-device tracking is the practice of tracking a user's activity across multiple devices. It is a type (subclass) of web tracking, which is the broader practice of website operators collecting, storing, and sharing information about a user's activity on the World Wide Web.

## Key Facts
- Cross-device tracking is defined as tracking of users between different devices.
- Cross-device tracking is a subclass of web tracking.
- Web tracking is described as the practice by which operators of websites collect, store, and share information about a particular user's activity on the World Wide Web.
- The Wikidata description for the entity is "tracking of users between different devices."
- The entity's Wikipedia title is "Cross-device tracking."
- Wikipedia pages for Cross-device tracking exist in at least English and German.
- The entity has a sitelink_count of 2.
- The parent class "web tracking" has a sitelink_count of 9.
- The Google Knowledge Graph identifier for the entity is /g/11cmh4z3_f.

## FAQs
### Q: What is cross-device tracking?
A: Cross-device tracking is the tracking of users between different devices. It specifically refers to linking a user's activity across more than one device.

### Q: How does cross-device tracking relate to web tracking?
A: Cross-device tracking is a subclass of web tracking. Web tracking is the broader practice where website operators collect, store, and share information about a user's activity on the World Wide Web.

### Q: Where can I find more authoritative references about cross-device tracking?
A: The topic appears on Wikipedia under the title "Cross-device tracking" (pages in English and German). It is also listed in Wikidata with the description "tracking of users between different devices" and has a Google Knowledge Graph ID /g/11cmh4z3_f.

## Why It Matters
Cross-device tracking matters because it extends the scope of web tracking from a single browser or device to multiple devices used by the same person. By linking activity across phones, tablets, laptops, and other devices, cross-device tracking enables a more continuous and unified view of a user's behavior on the web. That broader linkage changes how user activity is represented in datasets or profiles derived from web tracking practices. As a subclass of web tracking, cross-device tracking sits within the established practice where website operators collect, store, and share information about user activity. The classification and presence of the topic in knowledge bases (Wikipedia, Wikidata, Google Knowledge Graph) indicate it is a recognized concept within discussions of web tracking and related information practices.

## Notable For
- Specifically denotes tracking of the same user across multiple devices rather than within a single device or browser.
- Classified as a subclass of web tracking, linking it to the broader practice of collecting, storing, and sharing web activity data.
- Documented on Wikipedia under the title "Cross-device tracking" with pages in English and German.
- Represented in structured knowledge systems: Wikidata description and Google Knowledge Graph ID (/g/11cmh4z3_f).
- Has a sitelink_count of 2, while its parent class "web tracking" has a sitelink_count of 9.

## Body
### Definition
- Cross-device tracking is tracking of users between different devices.
- It focuses on linking activity that occurs on separate devices to the same user.

### Classification
- Subclass of: web tracking.
- Parent concept: web tracking, defined as the practice by which operators of websites collect, store and share information about a particular user's activity on the World Wide Web.

### Knowledge-base identifiers
- Wikipedia title: Cross-device tracking.
- Wikipedia languages available: English and German.
- Wikidata description: tracking of users between different devices.
- Google Knowledge Graph ID: /g/11cmh4z3_f.

### Metadata
- Entity sitelink_count: 2.
- Parent ("web tracking") sitelink_count: 9.

### Scope and focus
- Concerned with connecting user activity across devices.
- Distinguished from single-device or single-browser tracking by its multi-device scope.