Third-Party Data
Data that has been collected by a business or other entity that doesn't have any direct link to the visitor or customer, is referred to as third-party data. Third party data is often collected, aggregated, and sold to companies to help them build better digital customer experiences and develop retargeting strategies. As it's not collected directly from the company's actual customers, is available to potential competitors, and the data quality is often unclear, third-party data is not considered as valuable as first-party data. However, third-party data can be useful if used as a complement to first-party data when developing personalized experiences.