What Is Third-Party Data?

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Third-party data is collected by entities that do not have a direct relationship with the users the data is about. These data aggregators or brokers gather information from a variety of sources (websites, apps, offline transactions) and then sell or lease it to companies looking to enhance their marketing or analytics efforts.

Examples
Demographic data from a data broker

Behavioral data aggregated across many websites

Location data sold by app developers to third parties

Advantages
Scale and Breadth: Offers massive datasets covering a wide vietnam phone number list range of audiences, behaviors, and segments.

Audience Targeting: Helps marketers reach people beyond their existing user base.

Fast Deployment: Companies can quickly integrate data sets without the time needed to build up their own.

Limitations
Data Quality: Because it’s collected indirectly, third-party data can be outdated, inaccurate, or irrelevant.

Privacy Risks: Increasingly under scrutiny due to lack of transparency in how and where data is collected.

Regulatory Risk: Many governments are introducing legislation to restrict the collection and sale of third-party data.