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Third-party cookies | Privacy Sandbox | Google for Developers
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class="devsite-header--inner nocontent"> <div class="devsite-top-logo-row-wrapper-wrapper"> <div class="devsite-top-logo-row-wrapper"> <div class="devsite-top-logo-row"> <button type="button" id="devsite-hamburger-menu" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Navigation menu button" visually-hidden aria-label="Open menu"> </button> <div class="devsite-product-name-wrapper"> <a href="https://developers.google.com/privacy-sandbox"> <div class="devsite-product-logo-container" size="medium" > <picture> <img class="devsite-product-logo" alt="Privacy Sandbox" src="https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo.png" srcset="https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_36.png 36w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_48.png 48w, 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class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/privacy-sandbox" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Upper Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Privacy Sandbox" > <h1 class="devsite-product-name">Privacy Sandbox</h1> </a> </li> </ul> </span> </div> <div class="devsite-top-logo-row-middle"> <div class="devsite-header-upper-tabs"> <devsite-tabs class="upper-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Upper tabs"> <tab > <a href="https://developers.google.com/privacy-sandbox" track-metadata-eventdetail="https://developers.google.com/privacy-sandbox" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - overview" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Overview" track-name="overview" > Overview </a> </tab> <tab class="devsite-active"> <a href="https://developers.google.com/privacy-sandbox/cookies" track-metadata-eventdetail="https://developers.google.com/privacy-sandbox/cookies" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - cookies" track-metadata-module="primary nav" aria-label="Cookies, selected" data-category="Site-Wide Custom Events" data-label="Tab: Cookies" track-name="cookies" > Cookies </a> </tab> <tab > <a href="https://developers.google.com/privacy-sandbox/private-advertising" track-metadata-eventdetail="https://developers.google.com/privacy-sandbox/private-advertising" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - private advertising" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Private advertising" track-name="private advertising" > Private advertising </a> </tab> <tab > <a href="https://developers.google.com/privacy-sandbox/protections" track-metadata-eventdetail="https://developers.google.com/privacy-sandbox/protections" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - privacy protections" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Privacy protections" track-name="privacy protections" > Privacy protections </a> </tab> <tab > <a href="https://developers.google.com/privacy-sandbox/learn" track-metadata-eventdetail="https://developers.google.com/privacy-sandbox/learn" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - learn" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Learn" track-name="learn" > Learn </a> </tab> <tab > <a href="https://developers.google.com/privacy-sandbox/blog" track-metadata-eventdetail="https://developers.google.com/privacy-sandbox/blog" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - blog" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Blog" track-name="blog" > Blog </a> </tab> </nav> </devsite-tabs> </div> <devsite-search enable-signin enable-search enable-suggestions enable-query-completion project-name="Privacy Sandbox" tenant-name="Google for Developers" project-scope="/privacy-sandbox" url-scoped="https://developers.google.com/s/results/privacy-sandbox" > <form class="devsite-search-form" action="https://developers.google.com/s/results" method="GET"> <div class="devsite-search-container"> <button type="button" search-open class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Open search"></button> <div class="devsite-searchbox"> <input aria-activedescendant="" aria-autocomplete="list" aria-label="Search" aria-expanded="false" aria-haspopup="listbox" autocomplete="off" class="devsite-search-field devsite-search-query" name="q" placeholder="Search" role="combobox" type="text" value="" > <div class="devsite-search-image material-icons" aria-hidden="true"> </div> <div class="devsite-search-shortcut-icon-container" aria-hidden="true"> <kbd class="devsite-search-shortcut-icon">/</kbd> </div> </div> </div> </form> <button type="button" search-close class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Close search"></button> </devsite-search> </div> <devsite-language-selector> <ul role="presentation"> <li role="presentation"> <a role="menuitem" lang="en" >English</a> </li> <li role="presentation"> <a role="menuitem" lang="de" >Deutsch</a> </li> <li role="presentation"> <a role="menuitem" lang="es" >Español</a> </li> <li role="presentation"> <a role="menuitem" lang="es_419" >Español – América Latina</a> </li> <li role="presentation"> <a role="menuitem" lang="fr" >Français</a> </li> <li role="presentation"> <a role="menuitem" lang="id" >Indonesia</a> </li> <li role="presentation"> <a role="menuitem" lang="it" >Italiano</a> </li> <li role="presentation"> <a role="menuitem" lang="pl" >Polski</a> </li> <li role="presentation"> <a role="menuitem" lang="pt_br" >Português – Brasil</a> </li> <li role="presentation"> <a role="menuitem" lang="vi" >Tiếng Việt</a> </li> <li role="presentation"> <a role="menuitem" lang="tr" >Türkçe</a> </li> <li role="presentation"> <a role="menuitem" lang="ru" >Русский</a> </li> <li role="presentation"> <a role="menuitem" lang="he" >עברית</a> </li> <li role="presentation"> <a role="menuitem" lang="ar" >العربيّة</a> </li> <li role="presentation"> <a role="menuitem" lang="fa" >فارسی</a> </li> <li role="presentation"> <a role="menuitem" lang="hi" >हिंदी</a> </li> <li role="presentation"> <a role="menuitem" lang="bn" >বাংলা</a> </li> <li role="presentation"> <a role="menuitem" lang="th" >ภาษาไทย</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_cn" >中文 – 简体</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_tw" >中文 – 繁體</a> </li> <li role="presentation"> <a role="menuitem" lang="ja" >日本語</a> </li> <li role="presentation"> <a role="menuitem" lang="ko" >한국어</a> </li> </ul> </devsite-language-selector> <a class="devsite-header-link devsite-top-button button gc-analytics-event" href="//privacysandbox.com/" data-category="Site-Wide Custom Events" data-label="Site header link" > Home </a> <devsite-user enable-profiles fp-auth id="devsite-user"> <span class="button devsite-top-button" aria-hidden="true" visually-hidden>Sign in</span> </devsite-user> </div> </div> </div> <div class="devsite-collapsible-section devsite-header-no-lower-tabs "> <div class="devsite-header-background"> <div class="devsite-product-id-row" > <div class="devsite-product-description-row"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/privacy-sandbox/cookies" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Lower Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="" > Cookies </a> </li> </ul> </div> </div> </div> </div> </div> </devsite-header> <devsite-book-nav scrollbars > <div class="devsite-book-nav-filter" > <span class="filter-list-icon material-icons" aria-hidden="true"></span> <input type="text" placeholder="Filter" aria-label="Type to filter" role="searchbox"> <span class="filter-clear-button hidden" data-title="Clear filter" aria-label="Clear filter" role="button" tabindex="0"></span> </div> <nav class="devsite-book-nav devsite-nav nocontent" aria-label="Side menu"> <div class="devsite-mobile-header"> <button type="button" id="devsite-close-nav" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close navigation" aria-label="Close navigation"> </button> <div class="devsite-product-name-wrapper"> <a href="https://developers.google.com/privacy-sandbox"> <div class="devsite-product-logo-container" size="medium" > <picture> <img class="devsite-product-logo" alt="Privacy Sandbox" src="https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo.png" srcset="https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_36.png 36w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_48.png 48w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_72.png 72w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_96.png 96w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_480.png 480w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_720.png 720w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_856.png 856w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_960.png 960w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_1440.png 1440w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_1920.png 1920w, https://developers.google.com/static/privacy-sandbox/assets/images/privacy-sandbox-logo_2880.png 2880w" sizes="64px" loading="lazy" > </picture> </div> </a> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/privacy-sandbox" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Upper Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Privacy Sandbox" > Privacy Sandbox </a> </li> </ul> </span> </div> </div> <div class="devsite-book-nav-wrapper"> <div class="devsite-mobile-nav-top"> <ul class="devsite-nav-list"> <li class="devsite-nav-item"> <a href="/privacy-sandbox" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Overview" track-name="overview" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Overview" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Overview </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/privacy-sandbox/cookies" class="devsite-nav-title gc-analytics-event devsite-nav-has-children devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Cookies" track-name="cookies" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Cookies" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Cookies </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/privacy-sandbox/private-advertising" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Private advertising" track-name="private advertising" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Private advertising" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Private advertising </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/privacy-sandbox/protections" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Privacy protections" track-name="privacy protections" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Privacy protections" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Privacy protections </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/privacy-sandbox/learn" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Learn" track-name="learn" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Learn" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Learn </span> </a> </li> <li class="devsite-nav-item"> <a href="/privacy-sandbox/blog" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Blog" track-name="blog" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Blog" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Blog </span> </a> </li> <li class="devsite-nav-item"> <a href="//privacysandbox.com/" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Home" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Home </span> </a> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="_book"> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies" ><span class="devsite-nav-text" tooltip>About third-party cookies</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Prepare for changes</span> </div></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/prepare/overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/prepare/overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/prepare/overview" ><span class="devsite-nav-text" tooltip>Overview</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/prepare/audit-cookies" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/prepare/audit-cookies" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/prepare/audit-cookies" ><span class="devsite-nav-text" tooltip>Audit cookies</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/prepare/test-for-breakage" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/prepare/test-for-breakage" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/prepare/test-for-breakage" ><span class="devsite-nav-text" tooltip>Test for breakage</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/prepare/debug" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/prepare/debug" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/prepare/debug" ><span class="devsite-nav-text" tooltip>Debug third-party cookie blocking</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Solutions</span> </div></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/chips" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/chips" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/chips" ><span class="devsite-nav-text" tooltip>CHIPS</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/chips-transition" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/chips-transition" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/chips-transition" ><span class="devsite-nav-text" tooltip>Transition to partitioned cookies</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/storage-access-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/storage-access-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/storage-access-api" ><span class="devsite-nav-text" tooltip>Storage Access API</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/related-website-sets" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/related-website-sets" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/related-website-sets" ><span class="devsite-nav-text" tooltip>Related Website Sets</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/related-website-sets-integration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/related-website-sets-integration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/related-website-sets-integration" ><span class="devsite-nav-text" tooltip>Related Website Sets Developer guide</span></a></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Federated Credential Management API</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/fedcm" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/fedcm" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/fedcm" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/fedcm-developer-guide" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/fedcm-developer-guide" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/fedcm-developer-guide" ><span class="devsite-nav-text" tooltip>Developer guide</span></a></li><li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/fedcm-updates" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/fedcm-updates" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/fedcm-updates" ><span class="devsite-nav-text" tooltip>Updates</span></a></li><li class="devsite-nav-item"><a href="/privacy-sandbox/learn?api=federatedcredentialmanagement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/learn?api=federatedcredentialmanagement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/learn?api=federatedcredentialmanagement" ><span class="devsite-nav-text" tooltip>Tagged docs and blog posts</span></a></li></ul></div></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/storage-partitioning" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/storage-partitioning" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/storage-partitioning" ><span class="devsite-nav-text" tooltip>Storage partitioning</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Guides</span> </div></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/guides" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/guides" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/guides" ><span class="devsite-nav-text" tooltip>Overview</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/guides/identity" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/guides/identity" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/guides/identity" ><span class="devsite-nav-text" tooltip>Identity</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/guides/embeds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/guides/embeds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/guides/embeds" ><span class="devsite-nav-text" tooltip>Embeds</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/resources/case-studies/times-internet" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/resources/case-studies/times-internet" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/resources/case-studies/times-internet" ><span class="devsite-nav-text" tooltip>Case study: Times Internet</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/resources/case-studies/mercado-libre" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/resources/case-studies/mercado-libre" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/resources/case-studies/mercado-libre" ><span class="devsite-nav-text" tooltip>Case study: Mercado Libre</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Temporary exceptions</span> </div></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/temporary-exceptions/preserving-critical-user-experiences" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/temporary-exceptions/preserving-critical-user-experiences" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/temporary-exceptions/preserving-critical-user-experiences" ><span class="devsite-nav-text" tooltip>Overview</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/temporary-exceptions/grace-period" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/temporary-exceptions/grace-period" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/temporary-exceptions/grace-period" ><span class="devsite-nav-text" tooltip>Grace period</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/temporary-exceptions/grace-period-opt-out" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/temporary-exceptions/grace-period-opt-out" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/temporary-exceptions/grace-period-opt-out" ><span class="devsite-nav-text" tooltip>Grace period opt out</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/dashboard" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/dashboard" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/dashboard" ><span class="devsite-nav-text" tooltip>Compatibility lookup tool</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/temporary-exceptions/storage-partitioning-deprecation-trial" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/temporary-exceptions/storage-partitioning-deprecation-trial" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/temporary-exceptions/storage-partitioning-deprecation-trial" ><span class="devsite-nav-text" tooltip>Storage Partitioning deprecation trial</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/temporary-exceptions/heuristics-based-exceptions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/temporary-exceptions/heuristics-based-exceptions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/temporary-exceptions/heuristics-based-exceptions" ><span class="devsite-nav-text" tooltip>Heuristics based exceptions</span></a></li> <li class="devsite-nav-item"><a href="/privacy-sandbox/cookies/temporary-exceptions/chrome-enterprise" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /privacy-sandbox/cookies/temporary-exceptions/chrome-enterprise" track-type="bookNav" track-name="click" track-metadata-eventdetail="/privacy-sandbox/cookies/temporary-exceptions/chrome-enterprise" ><span class="devsite-nav-text" tooltip>Chrome Enterprise policies</span></a></li> </ul> </div> </div> </nav> </devsite-book-nav> <section id="gc-wrapper"> <main role="main" class="devsite-main-content" has-book-nav > <devsite-content> <article class="devsite-article"> <div class="devsite-article-meta nocontent" role="navigation"> <ul class="devsite-breadcrumb-list" aria-label="Breadcrumb"> <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="" > Home </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/privacy-sandbox" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="2" track-type="globalNav" track-name="breadcrumb" track-metadata-position="2" track-metadata-eventdetail="Privacy Sandbox" > Privacy Sandbox </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/privacy-sandbox/cookies" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="3" track-type="globalNav" track-name="breadcrumb" track-metadata-position="3" track-metadata-eventdetail="" > Cookies </a> </li> </ul> </div> <devsite-feedback position="header" project-name="Privacy Sandbox" product-id="5335444" bucket="" context="" version="t-devsite-webserver-20241114-r00-rc02.464922260396498922" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="header" 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> <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> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix "> <section class="devsite-landing-row devsite-landing-row-1-up devsite-landing-row-50 devsite-landing-row-hero devsite-landing-row-padding-small" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="third-party-cookies" data-text="Third-party cookies" class="hide-from-toc no-link" tabindex="0"> Third-party cookies </h3> <div class="devsite-landing-row-item-description-content"> <h4 id="understand-cookie-usage-on-your-site.-learn-how-to-transition-to-alternatives." data-text="Understand cookie usage on your site. Learn how to transition to alternatives. " tabindex="-1">Understand cookie usage on your site. <br><br> Learn how to transition to alternatives. </h4> </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-3-up devsite-landing-row-cards devsite-landing-row-padding-small" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="left" > <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/overview"> <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-blue" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> looks_one </div> </div> </a> <div class="devsite-landing-row-item-body"> <h3 id="prepare-for-chrome-changes" data-text="Prepare for Chrome changes" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/overview"> Prepare for Chrome changes </a> </h3> <div class="devsite-landing-row-item-description-content"> Learn more about changes to Chrome's treatment of third-party cookies and understand what actions you need to take to preserve your site's features. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/overview" class="button " >Prepare for changes</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="left" > <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/audit-cookies"> <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-blue" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> looks_two </div> </div> </a> <div class="devsite-landing-row-item-body"> <h3 id="audit-your-use-of-cookies" data-text="Audit your use of cookies" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/audit-cookies"> Audit your use of cookies </a> </h3> <div class="devsite-landing-row-item-description-content"> Review your cookies and make a list of those cookies for which you will need to take action to ensure they keep functioning properly. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/audit-cookies" class="button " >Start auditing</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="left" > <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/test-for-breakage"> <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-blue" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> looks_3 </div> </div> </a> <div class="devsite-landing-row-item-body"> <h3 id="test-for-breakage" data-text="Test for breakage" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/test-for-breakage"> Test for breakage </a> </h3> <div class="devsite-landing-row-item-description-content"> Set up Chrome to simulate the state when third-party cookies are blocked by user choice. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/prepare/test-for-breakage" class="button " >Start testing</a> </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-4-up devsite-landing-row-cards devsite-landing-row-padding-medium devsite-landing-row-large-headings" background="grey" header-position="top" > <div class="devsite-landing-row-inner"> <header class="devsite-landing-row-header" > <div class="devsite-landing-row-header-text"> <h2 id="migrate-to-privacy-preserving-solutions" data-text="Migrate to privacy preserving solutions" tabindex="0"> Migrate to privacy preserving solutions </h2> <div class="devsite-landing-row-description"> Once you have identified the cookies with issues and you understand the use cases for them, you can work through the following options to pick the necessary solution. </div> </div> </header> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="top" > <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-green" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> looks_one </div> </div> <div class="devsite-landing-row-item-body"> <h3 id="chips" data-text="CHIPS" class="hide-from-toc no-link" tabindex="0"> CHIPS </h3> <div class="devsite-landing-row-item-description-content"> The new cookie attribute, Partitioned, allows developers to opt a cookie into partitioned storage, with separate cookie jars per top-level site. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/chips" class="button " >Explore CHIPS</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="top" > <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-green" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> looks_two </div> </div> <div class="devsite-landing-row-item-body"> <h3 id="storage-access-api" data-text="Storage Access API" class="hide-from-toc no-link" tabindex="0"> Storage Access API </h3> <div class="devsite-landing-row-item-description-content"> Storage Access API allows iframes to request storage access permissions when access would otherwise be denied by browser settings. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/storage-access-api" class="button " >Explore Storage Access API</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="top" > <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-green" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> looks_3 </div> </div> <div class="devsite-landing-row-item-body"> <h3 id="related-website-sets" data-text="Related Website Sets" class="hide-from-toc no-link" tabindex="0"> Related Website Sets </h3> <div class="devsite-landing-row-item-description-content"> Related Website Sets (RWS) is a way for a company to declare relationships among sites, so that browsers allow limited third-party cookie access for specific purposes. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/related-website-sets" class="button " >Explore Related Website Sets</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="top" > <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-green" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> looks_4 </div> </div> <div class="devsite-landing-row-item-body"> <h3 id="federated-credential-management-api" data-text="Federated Credential Management API" class="hide-from-toc no-link" tabindex="0"> Federated Credential Management API </h3> <div class="devsite-landing-row-item-description-content"> A web API for privacy-preserving identity federation. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/fedcm" class="button " >Explore FedCM</a> </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-2-up devsite-landing-row-cards devsite-landing-row-no-image-background" header-position="top" > <div class="devsite-landing-row-inner"> <header class="devsite-landing-row-header" > <div class="devsite-landing-row-header-text"> <h2 id="guides-for-common-workflows" data-text="Guides for common workflows" tabindex="0"> Guides for common workflows </h2> <div class="devsite-landing-row-description"> Understand how to test common workflows that may rely on third-party cookies and decide on which privacy-preserving alternatives to migrate to. </div> </div> </header> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="left" > <a href="https://developers.google.com/privacy-sandbox/cookies/guides/identity"> <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-blue" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> person </div> </div> </a> <div class="devsite-landing-row-item-body"> <h3 id="identity-guide" data-text="Identity guide" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/guides/identity"> Identity guide </a> </h3> <div class="devsite-landing-row-item-description-content"> Find recommended solutions for sign-in scenarios. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/guides/identity" class="button " >Learn more</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="left" > <a href="https://developers.google.com/privacy-sandbox/cookies/guides/embeds"> <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-blue" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> picture_in_picture_alt </div> </div> </a> <div class="devsite-landing-row-item-body"> <h3 id="embed-guide" data-text="Embed guide" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/guides/embeds"> Embed guide </a> </h3> <div class="devsite-landing-row-item-description-content"> Test for embed-related journeys that rely on third-party cookies, and learn how to choose between the privacy-preserving alternatives. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/guides/embeds" class="button " >Learn more</a> </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-4-up" background="grey" header-position="left" > <div class="devsite-landing-row-inner"> <header class="devsite-landing-row-header" > <div class="devsite-landing-row-header-text"> <h2 id="temporary-exceptions" data-text="Temporary exceptions" tabindex="0"> Temporary exceptions </h2> <div class="devsite-landing-row-description"> Cross-site cookies have been a critical part of the web for over a quarter of a century. Moving to alternative solutions requires a coordinated and incremental approach, and we understand there are cases where sites need extra time to make the necessary changes and preserve critical user experiences. </div> </div> <div class="devsite-landing-row-header-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/preserving-critical-user-experiences" class="button " >Learn more</a> </div> </header> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="grace-period" data-text="Grace period" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/grace-period"> Grace period </a> </h3> <div class="devsite-landing-row-item-description-content"> Chrome's third-party cookie grace period provides a way for sites and services experiencing breakage to request additional time to move away from third-party cookies to alternative solutions. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/grace-period" class="button " >Learn more</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="grace-period-opt-out" data-text="Grace period opt out" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/grace-period-opt-out"> Grace period opt out </a> </h3> <div class="devsite-landing-row-item-description-content"> Chrome is providing a mechanism to allow sites to opt out of the third-party cookie grace period for a percentage of users. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/grace-period-opt-out" class="button " >Learn more</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="heuristics-based-exceptions" data-text="Heuristics based exceptions" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/heuristics-based-exceptions"> Heuristics based exceptions </a> </h3> <div class="devsite-landing-row-item-description-content"> Learn more about temporary heuristics based exceptions. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/heuristics-based-exceptions" class="button " >Learn more</a> </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="enterprise-support" data-text="Enterprise support" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/chrome-enterprise"> Enterprise support </a> </h3> <div class="devsite-landing-row-item-description-content"> Learn more about Chrome Enterprise policies for third-party cookies. </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/privacy-sandbox/cookies/temporary-exceptions/chrome-enterprise" class="button " >Learn more</a> </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-3-up devsite-landing-row-cards devsite-landing-row-no-image-background" header-position="top" > <div class="devsite-landing-row-inner"> <header class="devsite-landing-row-header" > <div class="devsite-landing-row-header-text"> <h2 id="news-and-updates" data-text="News and updates" tabindex="0"> News and updates </h2> <div class="devsite-landing-row-description"> Features and tooling to help you transition from third-party cookies. </div> </div> </header> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="left" > <a href="https://developers.google.com/privacy-sandbox/blog/3pc-lookup"> <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-blue" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> article </div> </div> </a> <div class="devsite-landing-row-item-body"> <h3 id="third-party-cookie-site-compatibility-lookup-tool" data-text="Third-party cookie site compatibility lookup tool" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/blog/3pc-lookup"> Third-party cookie site compatibility lookup tool </a> </h3> <div class="devsite-landing-row-item-description-content"> Chrome is providing a lookup service to show how third-party cookie availability is affected by Chrome's third-party cookie grace period, and grace period opt-out configuration. </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="left" > <a href="https://developers.google.com/privacy-sandbox/blog/grace-period-opt-out"> <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-blue" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> payments </div> </div> </a> <div class="devsite-landing-row-item-body"> <h3 id="an-opt-out-mechanism-for-the-third-party-cookie-grace-period" data-text="An opt-out mechanism for the third-party cookie grace period" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/blog/grace-period-opt-out"> An opt-out mechanism for the third-party cookie grace period </a> </h3> <div class="devsite-landing-row-item-description-content"> When a breakage report is filed at goo.gle/report-3pc-broken and meets all eligibility criteria, Chrome initiates a grace period that provides continued access to third-party cookies for a limited time. Chrome is now providing a mechanism to allow sites to opt out of the grace period for a percentage of users. </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" icon-position="left" > <a href="https://developers.google.com/privacy-sandbox/resources/case-studies/mercado-libre"> <div class="devsite-landing-row-item-icon-container" background="grey" foreground="google-blue" size="medium" > <div class="devsite-landing-row-item-icon material-icons" aria-hidden="true"> newspaper </div> </div> </a> <div class="devsite-landing-row-item-body"> <h3 id="privacy-sandbox-at-mercado-libre" data-text="Privacy Sandbox at Mercado Libre" class="hide-from-toc no-link" tabindex="0"> <a href="https://developers.google.com/privacy-sandbox/resources/case-studies/mercado-libre"> Privacy Sandbox at Mercado Libre </a> </h3> <div class="devsite-landing-row-item-description-content"> Learn how Latin America's leading ecommerce platform Mercado Libre made their journey to reduce reliance on third-party cookies and protect the privacy of their customers. </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-1-up devsite-landing-row-cta" background="blue" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="report-issues-with-third-party-cookies-and-get-help" data-text="Report issues with third-party cookies and get help" class="hide-from-toc no-link" tabindex="0"> <a href="https://goo.gle/report-3pc-broken"> Report issues with third-party cookies and get help </a> </h3> <div class="devsite-landing-row-item-description-content"> We want to ensure we capture the various scenarios where sites break without third-party cookies to ensure that we have provided guidance, tooling, and functionality to allow sites to migrate away from their third-party cookie dependencies. 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