Third-party scripts are code snippets loaded from external sources (outside the website’s domain). These scripts perform functions like user tracking, displaying ads, or providing analytics data.

They are commonly used by advertisers and analytics platforms to gather information on user behavior across different sites. While they are highly effective for tracking and marketing purposes, third-party scripts pose privacy risks because they can collect data without the user’s knowledge.

Additionally, as privacy regulations increase, third-party scripts are facing more restrictions, such as cookie-blocking by browsers like Safari and Chrome. This has led to a shift toward more privacy-friendly alternatives like server-side tagging, which offers greater control over data collection.