On Jan 16, 2024, Chrome began accepting applications for a deprecation trial for top-level sites, further referred to as first-party deprecation trial, which allows sites to request additional time to migrate away from third-party cookie dependencies. This deprecation trial will temporarily provide cross-site cookie access for non-advertising use cases.
If your first-party site relies on third-party embedded services and third-party cookie deprecation has caused functionality on your website to break, you may be eligible for the first-party deprecation trial.
This measure is introduced to supplement the existing third-party deprecation trial, which gives embedded third-party services additional time to transition away from third-party cookies.
The newly launched first-party deprecation trial aims to address cases where it is impossible, impractical or unnecessary to get all affected third-party providers to sign up for the third-party deprecation trial.
Trial | Offered to |
---|---|
First-party deprecation trial | Top-level sites relying on embedded third-party sites and services. |
Third-party deprecation trial | Embedded sites and services. |
To be eligible for either of the available trials, sites must demonstrate functional breakage in user journeys that are not related to advertising use-cases.
Timeline
To minimize user friction during the time it takes for sites to apply for the deprecation trial and deploy trial tokens, Chrome will provide sites with a grace period, giving temporary access to specific third-party cookies when breakage to core user-facing functionality is reported to us.
Important dates | Details |
---|---|
January 4th, 2024 | Third-party cookies restricted for 1% of Chrome users. |
January 16th, 2024 | First-party deprecation trial applications open to request additional time until December 27, 2024. Sites with reported user-facing breakage are eligible for a grace period. This provides temporary access to third-party cookies on their site until June 30, 2024. |
June 30, 2024 | Grace period expires. Sites must be enrolled in a deprecation trial and have trial tokens deployed to continue to access third-party cookies. |
December 27th, 2024 | Deprecation trial ends. |
Prepare for the third-party cookie phaseout
To minimize user-facing breakage as Chrome works to deprecate third-party cookies, follow these steps:
- If you discover breakage on your site, first audit your site to identify the specific third-party cookies causing the issue.
- Report any discovered breakage including steps to reproduce and any third-party embedded domains that need access to cookies.
- If relevant, notify third-party services causing breakage and ask if they are preparing for third-party cookie deprecation in Chrome or applying to the third-party deprecation trial for third-party providers.
- Register for the first-party deprecation trial and implement the trial tokens on impacted sites before the grace period ends on June 30, 2024.
- Prepare for the full phaseout of third party cookies by removing your site's dependency on third-party cookies. Privacy Sandbox purpose-built web APIs are available to solve many use cases that previously relied on the use of third-party cookies.
Take action now
The third-party cookie phaseout is under way and the time to prepare for it is now!