Feb 06, 2024 11:19:00

How to check if you are participating in Google Chrome's third-party cookie deprecation test

Google plans to phase out

third-party cookies , and is conducting an experiment with 30 million people, or 1% of Google Chrome users, starting in 2024. BleepingComputer, an IT news site, has compiled a guide on how to find out if you are participating in this test.

1% of Chrome users are restricted from using third-party cookies by default | Privacy Sandbox | Google for Developers
https://developers.google.com/privacy-sandbox/blog/cookie-countdown-2024jan?hl=ja

Check if you're in Google Chrome's third-party cookie phaseout test
https://www.bleepingcomputer.com/news/google/check-if-youre-in-google-chromes-third-party-cookie-phaseout-test/

Browsers such as Firefox and Safari are already blocking third-party cookies due to concerns about privacy violations caused by third-party cookies held by a third party other than the site you are visiting, such as advertisements posted on web pages. Chrome is also planning to follow suit.

Users will not be told whether they are participating in the third-party cookie retirement test initiated by Google, but there are four ways to find out:

◆1: Find the eye icon in the address bar
This icon indicates that the site you are viewing is attempting to use third-party cookies, and Chrome is restricting this access as part of its new tracking protection feature. So if you see this icon, you're participating in a new test.

◆2: Tracking protection function
If you can't find the eye icon, you can access the tracking protection feature by clicking the button below.

It looks like this when you access it.

◆3: Chrome DevTools
Developer tools can be called up by pressing the 'F12' key. If you are not part of the 1% of users we are testing, or if you do not manually block third-party cookies, you will receive an error stating that cross-site tracking will be blocked in a future version.

On the other hand, if you are testing or manually blocking cookies, you will receive an error stating that third-party cookies are being blocked.

◆4: Settings
For users who are not testing, enter 'chrome://settings/cookies' in the address bar to display the third-party cookie settings screen.

On the other hand, if you are testing, nothing will be displayed when you enter 'chrome://settings/cookies'. Instead, you can open the tracking protection settings by typing chrome://settings/trackingProtection.

Google plans to expand the phase-out to all users from the third quarter of 2024. In addition, even users who are not subject to the test can try out the new feature by entering 'chrome://flags/#test-third-party-cookie-phaseout' in the address bar on Chrome 121 and enabling it. is.