Chrome has launched a tool to provide sites with insights into third-party cookie breakages and mitigation status.
You can access the tool at goo.gle/3pc-lookup
When a breakage report is filed at goo.gle/report-3pc-broken and meets all eligibility criteria, Chrome initiates a grace period that allows a site or service continued access to third-party cookies for a limited time. The tool returns all active and expired grace periods, their freshness and opt-out values if available, and recommended next steps.
Who the tool is for
The tool is intended for site developers to monitor their site's temporary exception status, and plan development and testing accordingly. It also allows site developers to verify when their grace period and opt-out values are launched to end users.
How to use the tool
Enter a full, valid URL in the search box at goo.gle/3pc-lookup and press Submit.
The tool returns a table of applicable results for the top-level domain of the entered URL. The table contains details about each temporary exception applied, the scope (coverage) of the exception, and notes for the site owner.
The details column includes granular information for the site owner.
| Title | Description |
|---|---|
| First-party pattern | The first-party URL to which the exception is applied. If this value is a wildcard (*), this exception will apply to all first-parties where the third-party URL is embedded |
| Third-party pattern | The third-party URL to which the exception is applied. This value may contain wildcards to select subdomains |
| Enabled on | The date that the grace period exception was activated for the patterns shown |
| Expires on | The date that the grace period will no longer apply |
| Breakage issue | The public bug report submitted that demonstrates breakage related to third-party cookie dependencies |
| Deprecation Trial application issue | The site's application to one of the third-party cookie deprecation trials. This field is no longer required for participation in the grace period. |
| First-party opt-out configuration
file expected address. Hidden if the first-party pattern is * |
The URL that the top-level site's opt-out configuration file should be hosted at. |
| First-party opt-out configuration
file fetched. Hidden if the first-party pattern is *
|
Denotes whether or not Chrome has successfully fetched an opt-out file from the URL supplied in the previous field. |
| Third-party opt-out configuration file expected address | The URL that the service's opt-out configuration file should be hosted at. |
| Third-party opt-out configuration file fetched | Denotes whether or not Chrome has successfully fetched an opt-out file from the URL supplied in the previous field. |
| Active opt-out value | The percentage of impacted traffic that won't be subject to the grace period exception |
Troubleshooting and feedback
If you have concerns or questions about the results, check the FAQs at the bottom of the tool page.
If you encounter errors or need help with troubleshooting, you can get support on the Privacy Sandbox Developer Support repository.