Google will be changing how it handles the first-party cookie controls on AdSense sites. Google said, "We're making some changes to how first-party cookies are managed in your AdSense account to simplify controls and improve your access to third-party demand."
Google has combined the controls for enabling "first-party cookies" and "first-party cookies for personalization" into a single control.
Turning on the new control will enable first-party cookies for the publisher, share it with demand sources, and enable all usages including personalization, Google explained.
The new control will be set to your existing personalization setting to aid the transition, Google added.
Google added:
Currently, first-party cookies are shared with Google demand sources (Google Ads, Display & Video 360). Starting no earlier than December 4th, 2024, your first-party cookies will also be shared with Authorized Buyers. However, for the time being, this sharing will not include users in the EEA, Switzerland, UK, California, and some US states.If you're already using first-party cookies for personalization, sharing with Authorized Buyers will be turned on by default. If you're only using first-party cookies without personalization, sharing will remain off.
Choose whether or not you want to allow first-party cookies from Google on your site, and allow sharing of first-party cookies for personalization with eligible advertising platforms (Google Ads, Display & Video 360, and Authorized Buyers). Allowing first-party cookies from Google may increase your revenue because it enables features like frequency capping on ads and allows ads with a frequency cap to serve on your site. First party cookies for personalization help to show personalized ads to your users when third-party cookies aren’t available, which may also increase your revenue.
Cookies are small text files downloaded to a user's browser that can be used to store user information and preferences. Cookies are either first-party (associated with the domain the user is visiting) or third party (associated with a domain that's different from the domain the user is visiting). Google may use first-party cookies when third-party cookies are not available.
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