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Read the latest update from the Privacy Sandbox team: General availability and supporting scaled testing

A lightbulb above an open book Building a more private internet

The Privacy Sandbox technologies aim to make current tracking mechanisms obsolete, while giving publishers, developers, and advertisers what they need for their business. Learn more about the Privacy Sandbox proposals, going deeper into how they reduce cross-site and cross-app tracking.

Learn about the technology

With each proposal, the Privacy Sandbox aims to keep people's activity private across an open and free internet.

Topics API

Get to know Topics, a Privacy Sandbox proposal designed to keep the web and mobile apps functioning while keeping more of your personal information safe and private online.

Protected Audience API

Protected Audience API is a Privacy Sandbox proposal designed to help keep your personal browsing information safe while also allowing advertisers to reach previous website and app visitors.

Attribution Reporting API

Attribution Reporting helps advertisers measure the performance of their online ads without needing to track people's activity across websites and apps.

How it works

Dive deeper into Privacy Sandbox's proposals to deliver the key advertising use cases on the web and on Android.

Topics API

The Topics API is a Privacy Sandbox proposal for a mechanism to enable interest-based advertising, without having to resort to tracking the sites a user visits or the apps they use.

Protected Audience API

The Protected Audience API is a new way to remind you of sites and products you’ve been interested in, without relying on third-party cookies or cross-app identifiers that track your individual activity.

Attribution Reporting API

The Attribution Reporting API is a Privacy Sandbox proposal that will help advertisers measure the performance of their online ads without needing to track people's activity across websites and apps.

Frequently Asked Questions

You can expect to hear more about the progress being made with the Privacy Sandbox regularly, including more opportunities for you to test these new technologies on your sites and in your campaigns. For the latest news, please follow the blog on developer.chrome.com and sign up for updates at developer.android.com

Google invites members from the industry—web browsers, online publishers, ad tech companies, advertisers, and developers—to participate in the development and testing of the proposed new technologies.

For the open web, you can contribute to the public discussions in forums such as the W3C, and if you’re a business, talk to your trade groups and technology vendors about engaging in this process. If you’re a developer, we invite you to join the origin trials.

For Android, feedback on the design proposals can be given directly via the developer.android.com site. This is also where you can sign up for regular updates as the project progresses.

Developer.chrome.com offers an overview of all the Privacy Sandbox proposals and guidance for testing. It also refers to explainers and discussions on GitHub.

Developer.android.com provides information, design proposals, and updates on the Privacy Sandbox on Android.