Third-Party Tracking
Third-party tracking is a web technology and data collection practice where external entities (third parties) monitor user behavior across multiple websites or apps, typically using cookies, pixels, or scripts. It enables cross-site user profiling for purposes like targeted advertising, analytics, and personalization. This practice raises significant privacy and data protection concerns, as it often occurs without explicit user consent.
Developers should understand third-party tracking to implement compliant data collection systems, especially under regulations like GDPR or CCPA, and to build privacy-focused applications. It's essential for roles involving ad tech, analytics platforms, or web development where user data handling is critical. Knowledge helps in configuring tools like Google Analytics responsibly or developing alternatives like first-party tracking solutions.