How the Attribution Reporting API helps protect privacy

Attribution Reporting uses a combination of techniques to measure conversions while protecting user privacy:

• On-device measurement: Much of the measurement process happens directly on the user's device, limiting the amount of data shared with third parties.
• Aggregation and anonymization: Attribution Reporting aggregates and anonymizes data to prevent the identification of individual users.
• Limited data sharing: Only the necessary information is shared between the browser, ad tech platforms, and advertisers.
• Noise: Attribution Reporting uses noise, a privacy-preserving technique that adds random variations to the data to prevent the identification of individual users.