Safari ITP Impact Experiment

This experiment explores how Safari’s Intelligent Tracking Prevention (ITP) affects web applications and user privacy. We’ll create a simple web application that demonstrates various tracking mechanisms and observe how ITP blocks or modifies them.

What is ITP?

Intelligent Tracking Prevention (ITP) is a privacy feature in Safari that helps prevent cross-site tracking. It works by:

1. Limiting third-party cookies
2. Partitioning first-party cookies
3. Blocking certain types of tracking scripts
4. Modifying how localStorage and sessionStorage work

What We’ll Test

In this experiment, we’ll create a web application that demonstrates:

1. Third-party cookie behavior
2. First-party cookie partitioning
3. localStorage and sessionStorage restrictions
4. Cross-site request tracking
5. User fingerprinting attempts

Getting Started

To run this experiment:

1. Open Safari and check your ITP settings:

   • Go to Safari > Settings > Privacy
   • Look for “Cross-site tracking” setting

2. Visit our test application:

   • Test Application

3. Try different scenarios:

   • With ITP enabled
   • With ITP disabled
   • In different Safari versions

Expected Results

We expect to observe:

• Third-party cookies being blocked or partitioned
• localStorage restrictions in cross-site contexts
• Modified behavior of tracking scripts
• Different results based on Safari version and ITP settings

Next Steps

Start the Experiment