Third-party cookies
Understand first-party and third-party cookie usage on your site.
Third-party cookie restrictions
Provide a great experience for your users, whether or not third-party cookies are available.
Audit your use of cookies
Review your cookies and make a list of those cookies for which you will need to take action to ensure they keep functioning properly.
Test for breakage
Set up Chrome to simulate the state when third-party cookies are blocked by user choice.
Migrate to privacy preserving solutions
Once you have identified cookies with issues and you understand the use cases for them, you can work through the following options to pick the necessary solution.
CHIPS
The Partitioned cookie attribute allows developers to opt a cookie into partitioned storage, with separate cookie jars per top-level site.
Storage Access API
Storage Access allows iframes to request storage access permissions when access would otherwise be denied by browser settings.
Federated Credential Management API
A web API for privacy-preserving identity federation.
Cookie basics
Simple guides to help you understand how cookies work.
What are cookies?
Understand HTTP cookies: how they're set by a web server, then stored and sent by a web browser.
What are third-party cookies?
A third-party cookie is from a site that's different from the site you're visiting. What does that mean in practice?
Cookie attributes
Cookies can include attributes to control if they're set, and when they expire.
HTTP request and response
The web uses the HTTP protocol to transfer resources and set cookies. How does that work?
Cookie blocking
Cookies can be blocked by browser design, Enterprise policy, or user choice. This article explains how.
Cookie tools
Chrome tools to help you understand cookie usage on your site.
Cookie demos
Demos of first-party cookies, third-party cookies, and cross-site tracking.
Guides for common workflows
Understand how to test common workflows that may rely on third-party cookies and decide on which privacy-preserving alternatives to migrate to.
Identity guide
Find recommended solutions for sign-in scenarios.
Embed guide
Test for embed-related journeys that rely on third-party cookies, and learn how to choose between the privacy-preserving alternatives.