Intelligent tracking prevention (ITP)

A privacy feature of Webkit, an open-source web-browser engine that powers Apple’s Safari web browser, introduced in the release of Safari 11 and iOS 11.

ITP changes the way Safari handles First-party cookies, specifically by blocking First-party cookies used for tracking, Retargeting and attribution.

Further reading:

• What Is Intelligent Tracking Prevention and How Does It Work?
• Intelligent Tracking Prevention (ITP): The Impact on Cookies, AdTech, and MarTech