Browser-based tracking scripts are small pieces of code that run directly within a user’s browser to track their activity. These scripts can gather data like browsing behavior, search history, and interactions with websites.

The collected information is often used to build user profiles and serve targeted ads. While these scripts are useful for marketers to measure performance and enhance personalization, they pose privacy risks by collecting sensitive data without users’ knowledge.

Many modern browsers, such as Safari and Firefox, are implementing features like Intelligent Tracking Prevention (ITP) to limit the scope of these tracking scripts, aiming to protect user privacy.