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Third-party cookie site compatibility lookup tool | Privacy Sandbox | Google for Developers
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<button> Send feedback </button> </devsite-feedback> <h1 class="devsite-page-title" tabindex="-1"> Third-party cookie site compatibility lookup tool </h1> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix "> <p>Chrome has launched a tool to provide sites with insights into third-party cookie breakages and mitigation status.</p> <p>You can access the tool at <a href="https://goo.gle/3pc-lookup">goo.gle/3pc-lookup</a></p> <figure style="max-width:800px; margin:auto;"> <img src="/static/privacy-sandbox/assets/images/blog/3pc-lookup.png" alt="Third-party cookie site compatibility lookup tool."> <figcaption>Third-party cookie site compatibility lookup tool</figcaption> </figure> <p>When a breakage report is filed at <a href="https://goo.gle/report-3pc-broken">goo.gle/report-3pc-broken</a> and meets all eligibility criteria, Chrome initiates a <a href="/privacy-sandbox/cookies/temporary-exceptions/grace-period">grace period</a> 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 <a href="/privacy-sandbox/blog/grace-period-opt-out">opt-out values</a> if available, and recommended next steps.</p> <h2 id="who_the_tool_is_for" data-text="Who the tool is for" tabindex="-1">Who the tool is for</h2> <p>The tool is intended for site developers to monitor their site's <a href="https://goo.gle/ps-preserve">temporary exception</a> 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.</p> <blockquote> <aside class="note"><strong>Note:</strong><span> The tool doesn't indicate a site's dependence on third-party cookies, or its readiness to migrate to alternative solutions. Our <a href="/privacy-sandbox/cookies/prepare/test-for-breakage">Test for breakage</a> article explains how to test a site's dependence on third-party cookies.</span></aside></blockquote> <h2 id="how_to_use_the_tool" data-text="How to use the tool" tabindex="-1">How to use the tool</h2> <p>Enter a full, valid URL in the search box at <a href="https://goo.gle/3pc-lookup">goo.gle/3pc-lookup</a> and press <strong>Submit</strong>.</p> <p>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.</p> <p>The details column includes granular information for the site owner.</p> <table> <thead> <tr> <th>Title</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>First-party pattern </td> <td>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</td> </tr> <tr> <td>Third-party pattern </td> <td>The third-party URL to which the exception is applied. This value may contain wildcards to select subdomains</td> </tr> <tr> <td>Enabled on </td> <td>The date that the grace period exception was activated for the patterns shown</td> </tr> <tr> <td>Expires on </td> <td>The date that the grace period will no longer apply</td> </tr> <tr> <td>Breakage issue </td> <td>The public bug report submitted that demonstrates breakage related to third-party cookie dependencies</td> </tr> <tr> <td>Deprecation Trial application issue </td> <td>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.</td> </tr> <tr> <td>First-party opt-out configuration file expected address. <br>Hidden if the first-party pattern is <code translate="no" dir="ltr">*</code></td> <td>The URL that the top-level site's opt-out configuration file should be hosted at.</td> </tr> <tr> <td>First-party opt-out configuration file fetched. <br>Hidden if the first-party pattern is <code translate="no" dir="ltr">*</code> </td> <td>Denotes whether or not Chrome has successfully fetched an opt-out file from the URL supplied in the previous field.</td> </tr> <tr> <td>Third-party opt-out configuration file expected address </td> <td>The URL that the service's opt-out configuration file should be hosted at.</td> </tr> <tr> <td>Third-party opt-out configuration file fetched </td> <td>Denotes whether or not Chrome has successfully fetched an opt-out file from the URL supplied in the previous field.</td> </tr> <tr> <td>Active opt-out value </td> <td>The percentage of impacted traffic that won't be subject to the grace period exception</td> </tr> </tbody> </table> <h2 id="troubleshooting_and_feedback" data-text="Troubleshooting and feedback" tabindex="-1">Troubleshooting and feedback</h2> <p>If you have concerns or questions about the results, check the <a href="https://goo.gle/3pc-lookup#faq">FAQs</a> at the bottom of the tool page.</p> <p>If you encounter errors or need help with troubleshooting, you can get support on the <a href="http://goo.gle/ps-support">Privacy Sandbox Developer Support repository</a>.</p> <h2 id="learn_more" data-text="Learn more" tabindex="-1">Learn more</h2> <ul> <li><a href="/privacy-sandbox/cookies/temporary-exceptions/grace-period">Third-party cookie dependency grace period</a></li> <li><a href="/privacy-sandbox/blog/grace-period-opt-out">An opt-out mechanism for the third-party cookie deprecation trial grace period</a></li> </ul> </div> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <devsite-feedback position="footer" project-name="Privacy Sandbox" product-id="5335444" bucket="" context="" version="t-devsite-webserver-20250211-r00-rc00.466928320959134316" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="footer" class="nocontent" disable-product-feedback project-icon="https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo.png" > <button> Send feedback </button> </devsite-feedback> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> <p>Except as otherwise noted, the content of this page is licensed under the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 License</a>, and code samples are licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache 2.0 License</a>. 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