Generated by Gemini:The Thoughtful Sandbox is a Google initiative to develop new privacy-preserving technologies for the web. It is a collaboration between Google, other tech companies, and researchers. The goal of the Thoughtful Sandbox is to create technologies that allow websites to serve relevant ads and measure the effectiveness of their advertising campaigns, without tracking users across the web.
One of the key technologies being developed in the Thoughtful Sandbox is the Topics API. The Topics API allows a browser to determine a handful of topics, such as "Fitness" or "Travel & Transportation," that represent a user's top interests for that week. These topics are based on the user's browsing history, but they are selected entirely on the device without involving any external servers, including Google servers.
When a user visits a participating website, the Topics API picks three topics, one topic from each of the past three weeks, to share with the site and its advertising partners. The website can then use this information to serve relevant ads to the user.
The Topics API is still under development, but it has been tested by millions of users around the world. Google has received positive feedback from users and advertisers about the Topics API, and it is working to make it even better before it is launched in the Chrome browser.
In addition to the Topics API, the Thoughtful Sandbox is also developing other technologies to protect user privacy, such as the Trust Token API and the Attribution Reporting API. The Trust Token API allows a website to verify that a user is logged in to another website without sharing any personal information. The Attribution Reporting API allows a website to measure the effectiveness of its advertising campaigns without tracking users across the web.
The Thoughtful Sandbox is an important initiative to protect user privacy on the web. Google is committed to working with the community to develop new privacy-preserving technologies that allow websites to serve relevant ads and measure the effectiveness of their advertising campaigns.