Chrome Privacy Sandbox vs. Apple Private Relay: The Technical Survival Protocol

Executive Summary

We review the privacy changes introduced by Apple and Google. This paper details how server-side tracking and anonymized identifiers help brands maintain attribution accuracy under these strict standards.

Methodology

We compared tracking and attribution performance across iOS Private Relay and Chrome Privacy Sandbox users to measure data loss across client-side scripts.

Key Metrics

• Identifier Match Deficit: Standard pixels lost 42% of conversion links
• First-Party Proxy Precision: Retained 96% matched conversion accuracy
• Bidding Model Adaptation: Improved ad target delivery rates by 30%