Verify the Google ID token on your server side | Authentication

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href="https://developers.google.com/identity/gsi/web/guides/verify-google-id-token?hl=vi" /><title>Verify the Google ID token on your server side  |  Authentication  |  Google for Developers</title> <meta property="og:title" content="Verify the Google ID token on your server side  |  Authentication  |  Google for Developers"><meta property="og:url" content="https://developers.google.com/identity/gsi/web/guides/verify-google-id-token"><meta property="og:image" content="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/developers/images/opengraph/teal.png"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="675"><meta property="og:locale" content="en"><meta name="twitter:card" content="summary_large_image"><script type="application/ld+json"> { "@context": "https://schema.org", "@type": "Article", "headline": "Verify the Google ID token on your server side" } </script><script 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role="heading" tooltip>Web</li> <li class="devsite-nav-item"> <a href="https://web.dev/sign-in-form-best-practices/" track-type="nav" track-metadata-eventdetail="https://web.dev/sign-in-form-best-practices/" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Autocomplete </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Cross-platform</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/credential-sharing" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-sharing" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Seamless credential sharing </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/credential-verification" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://developers.google.com/identity/credential-verification" track-type="nav" track-metadata-position="nav - credential verification" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" > Credential verification </a> <button aria-haspopup="menu" aria-expanded="false" aria-label="Dropdown menu for Credential verification" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-verification" track-metadata-position="nav - credential verification" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></button> <div class="devsite-tabs-dropdown" role="menu" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Android</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sms-retriever/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sms-retriever/overview" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Verify users by SMS </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/phone-number-hint/android" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/phone-number-hint/android" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Phone Number Hint </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Web</li> <li class="devsite-nav-item"> <a href="https://web.dev/web-otp/" track-type="nav" track-metadata-eventdetail="https://web.dev/web-otp/" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Verify phone numbers on the web </div> </a> </li> </ul> </div> </div> </div> </tab> </nav> </devsite-tabs> </div> <devsite-search enable-signin enable-search enable-suggestions enable-query-completion project-name="Authentication" tenant-name="Google for Developers" project-scope="/identity/authentication" url-scoped="https://developers.google.com/s/results/identity/authentication" > <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> <devsite-user enable-profiles fp-auth id="devsite-user"> Sign in </devsite-user> </div> </div> </div> <div class="devsite-collapsible-section "> <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/identity/authentication" 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="Authentication" > Authentication </a> </li> </ul> </div> </div> <div class="devsite-doc-set-nav-row"> <devsite-tabs class="lower-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Lower tabs"> <tab > <a href="https://developers.google.com/identity/android-credential-manager" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://developers.google.com/identity/android-credential-manager" track-type="nav" track-metadata-position="nav - credential manager for android" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential Manager for Android" track-name="credential manager for android" > Credential Manager for Android </a> </tab> <tab class="devsite-active"> <a href="https://developers.google.com/identity/gsi/web/guides/overview" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://developers.google.com/identity/gsi/web/guides/overview" track-type="nav" track-metadata-position="nav - sign in with google for web" track-metadata-module="primary nav" aria-label="Sign In with Google for Web, selected" data-category="Site-Wide Custom Events" data-label="Tab: Sign In with Google for Web" track-name="sign in with google for web" > Sign In with Google for Web </a> </tab> <tab > <a href="https://developers.google.com/identity/sign-in/ios/start-integrating" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://developers.google.com/identity/sign-in/ios/start-integrating" track-type="nav" track-metadata-position="nav - google sign-in for ios and macos" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Google Sign-In for iOS and macOS" track-name="google sign-in for ios and macos" > Google Sign-In for iOS and macOS </a> </tab> <tab > <a href="https://developers.google.com/identity/passkeys" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://developers.google.com/identity/passkeys" track-type="nav" track-metadata-position="nav - passkeys" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Passkeys" track-name="passkeys" > Passkeys </a> </tab> <tab > <a href="https://developers.google.com/identity/openid-connect/openid-connect" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://developers.google.com/identity/openid-connect/openid-connect" track-type="nav" track-metadata-position="nav - openid connect" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: OpenID Connect" track-name="openid connect" > OpenID Connect </a> </tab> </nav> </devsite-tabs> </div> </div> </div> </div> </devsite-header> <devsite-book-nav scrollbars > <div class="devsite-book-nav-filter" > <input type="text" placeholder="Filter" aria-label="Type to filter" role="searchbox"> </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"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item devsite-has-google-wordmark"> <a href="https://developers.google.com/identity" 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="Google Identity" > <svg class="devsite-google-wordmark" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 148 48"> <title>Google</title> <path class="devsite-google-wordmark-svg-path" d="M19.58,37.65c-9.87,0-18.17-8.04-18.17-17.91c0-9.87,8.3-17.91,18.17-17.91c5.46,0,9.35,2.14,12.27,4.94l-3.45,3.45c-2.1-1.97-4.93-3.49-8.82-3.49c-7.21,0-12.84,5.81-12.84,13.02c0,7.21,5.64,13.02,12.84,13.02c4.67,0,7.34-1.88,9.04-3.58c1.4-1.4,2.32-3.41,2.66-6.16H19.58v-4.89h16.47c0.18,0.87,0.26,1.92,0.26,3.06c0,3.67-1.01,8.21-4.24,11.44C28.93,35.9,24.91,37.65,19.58,37.65z M61.78,26.12c0,6.64-5.1,11.53-11.36,11.53s-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53S61.78,19.43,61.78,26.12z M56.8,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C53.84,33.11,56.8,30.22,56.8,26.12z M87.25,26.12c0,6.64-5.1,11.53-11.36,11.53c-6.26,0-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53C82.15,14.59,87.25,19.43,87.25,26.12zM82.28,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C79.32,33.11,82.28,30.22,82.28,26.12z M112.09,15.29v20.7c0,8.52-5.02,12.01-10.96,12.01c-5.59,0-8.95-3.76-10.22-6.81l4.41-1.83c0.79,1.88,2.71,4.1,5.81,4.1c3.8,0,6.16-2.36,6.16-6.77v-1.66h-0.18c-1.14,1.4-3.32,2.62-6.07,2.62c-5.76,0-11.05-5.02-11.05-11.49c0-6.51,5.28-11.57,11.05-11.57c2.75,0,4.93,1.22,6.07,2.58h0.18v-1.88H112.09z M107.64,26.16c0-4.06-2.71-7.03-6.16-7.03c-3.49,0-6.42,2.97-6.42,7.03c0,4.02,2.93,6.94,6.42,6.94C104.93,33.11,107.64,30.18,107.64,26.16z M120.97,3.06v33.89h-5.07V3.06H120.97z M140.89,29.92l3.93,2.62c-1.27,1.88-4.32,5.11-9.61,5.11c-6.55,0-11.28-5.07-11.28-11.53c0-6.86,4.77-11.53,10.71-11.53c5.98,0,8.91,4.76,9.87,7.34l0.52,1.31l-15.42,6.38c1.18,2.31,3.01,3.49,5.59,3.49C137.79,33.11,139.58,31.84,140.89,29.92zM128.79,25.77l10.31-4.28c-0.57-1.44-2.27-2.45-4.28-2.45C132.24,19.04,128.66,21.31,128.79,25.77z"/> </svg>Identity </a> </li> </ul> </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="/identity/authentication" class="devsite-nav-title gc-analytics-event devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authentication" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Authentication </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> More </li> </ul> <ul class="devsite-nav-responsive-tabs"> <li class="devsite-nav-item"> <a href="/identity/android-credential-manager" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Credential Manager for Android" track-name="credential manager for android" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential Manager for Android" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Credential Manager for Android </a> </li> <li class="devsite-nav-item"> <a href="/identity/gsi/web/guides/overview" class="devsite-nav-title gc-analytics-event devsite-nav-has-children devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Sign In with Google for Web" track-name="sign in with google for web" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Sign In with Google for Web" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Sign In with Google for Web </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/ios/start-integrating" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Google Sign-In for iOS and macOS" track-name="google sign-in for ios and macos" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for iOS and macOS" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Google Sign-In for iOS and macOS </a> </li> <li class="devsite-nav-item"> <a href="/identity/passkeys" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Passkeys" track-name="passkeys" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Passkeys" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Passkeys </a> </li> <li class="devsite-nav-item"> <a href="/identity/openid-connect/openid-connect" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: OpenID Connect" track-name="openid connect" data-category="Site-Wide Custom Events" data-label="Responsive Tab: OpenID Connect" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> OpenID Connect </a> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/authorization" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorization" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Authorization </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> More </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/credential-management" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential management" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Credential management </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> More </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/credential-verification" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential verification" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Credential verification </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> More </li> </ul> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="_book"> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Get started </div></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/overview" >Overview</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/offerings" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/offerings" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/offerings" >Features</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/integrate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/integrate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/integrate" >Integration considerations</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/supported-browsers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/supported-browsers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/supported-browsers" >Supported browsers</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/get-google-api-clientid" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/get-google-api-clientid" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/get-google-api-clientid" >Setup</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/client-library" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/client-library" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/client-library" >Load the client library</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/tools/configurator" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/tools/configurator" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/tools/configurator" >Generate the integration code</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"> Case studies </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/sign-in/case-studies" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/case-studies" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/case-studies" >Overview</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/case-studies/pinterest" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/case-studies/pinterest" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/case-studies/pinterest" >Pinterest</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/case-studies/reddit" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/case-studies/reddit" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/case-studies/reddit" >Reddit</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/case-studies/iron-company" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/case-studies/iron-company" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/case-studies/iron-company" >Iron Company</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/case-studies/ebay" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/case-studies/ebay" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/case-studies/ebay" >eBay</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/case-studies/vikatan" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/case-studies/vikatan" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/case-studies/vikatan" >vikatan</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/case-studies/the-news-minute" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/case-studies/the-news-minute" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/case-studies/the-news-minute" >The News Minute</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/case-studies/lokmat" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/case-studies/lokmat" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/case-studies/lokmat" >Lokmat</a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Sign in With Google button </div></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/personalized-button" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/personalized-button" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/personalized-button" >Understand the button user experience</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/display-button" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/display-button" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/display-button" >Display the Sign in With Google button</a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> One Tap guides </div></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/features" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/features" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/features" >Understand the One Tap user experience</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/automatic-sign-in-sign-out" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/automatic-sign-in-sign-out" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/automatic-sign-in-sign-out" >Automatic sign-in and sign-out</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/display-google-one-tap" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/display-google-one-tap" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/display-google-one-tap" >Display the One Tap prompt</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/itp" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/itp" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/itp" >One Tap on ITP browsers</a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Advanced topics </div></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/verify-google-id-token" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/verify-google-id-token" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/verify-google-id-token" >Verify the Google ID token on your server side</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/toggle-outside-tap" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/toggle-outside-tap" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/toggle-outside-tap" >Toggle outside tap to close One Tap</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/change-sign-in-context" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/change-sign-in-context" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/change-sign-in-context" >Change the One Tap sign-in context</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/subdomains" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/subdomains" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/subdomains" >Display One Tap across subdomains</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/toggle-display-with-cookies" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/toggle-display-with-cookies" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/toggle-display-with-cookies" >Toggle the One Tap display with cookies</a></li> <li class="devsite-nav-item devsite-nav-deprecated"><a href="/identity/gsi/web/guides/change-position" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/change-position" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/change-position" >Change the One Tap prompt position</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/receive-notifications-prompt-ui-status" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/receive-notifications-prompt-ui-status" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/receive-notifications-prompt-ui-status" >Receive notifications on the prompt UI status</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/use-one-tap-js-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/use-one-tap-js-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/use-one-tap-js-api" >Use the JavaScript API</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/revoke" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/revoke" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/revoke" >Revoke an ID token</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/display-browsers-native-credential-manager" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/display-browsers-native-credential-manager" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/display-browsers-native-credential-manager" >Display the browser's native credential manager</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/handle-credential-responses-js-functions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/handle-credential-responses-js-functions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/handle-credential-responses-js-functions" >Handle credential responses with JavaScript functions</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/devices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/devices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/devices" >Sign-In on TVs and Limited Input Devices</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/amp/intermediate-iframe" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/amp/intermediate-iframe" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/amp/intermediate-iframe" >Integrate One Tap via an Iframe</a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Resources </div></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/fedcm-migration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/fedcm-migration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/fedcm-migration" >Migrate to FedCM</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/guides/migration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/guides/migration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/guides/migration" >Migrating from Google Sign-In</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/tools/configurator" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/tools/configurator" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/tools/configurator" >Code Generator</a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Reference </div></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/reference/html-reference" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/reference/html-reference" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/reference/html-reference" >HTML API</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/reference/js-reference" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/reference/js-reference" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/reference/js-reference" >JavaScript API</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/amp/nonamp-reference" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/amp/nonamp-reference" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/amp/nonamp-reference" >Intermediate Iframe API</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/amp/intermediate-support-reference" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/amp/intermediate-support-reference" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/amp/intermediate-support-reference" >Intermediate Iframe Support API</a></li> <li class="devsite-nav-item"><a href="/identity/gsi/web/reference/release-notes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/reference/release-notes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/reference/release-notes" >Release Notes</a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Deprecated </div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-deprecated"><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"> Google Sign-In </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/sign-in/web/deprecation-and-sunset" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/deprecation-and-sunset" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/deprecation-and-sunset" >Deprecation and sunset</a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Basics </div></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/sign-in" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/sign-in" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/sign-in" >Integrate Google Sign-In</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/people" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/people" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/people" >Get Profile Information</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/backend-auth" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/backend-auth" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/backend-auth" >Authenticate with a Backend Server</a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Additional Capabilities </div></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/build-button" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/build-button" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/build-button" >Customize the Sign-In Button</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/session-state" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/session-state" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/session-state" >Monitor the User's Session State</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/incremental-auth" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/incremental-auth" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/incremental-auth" >Request Additional Permissions</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/listeners" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/listeners" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/listeners" >Integrate Sign-In Using Listeners</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/server-side-flow" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/server-side-flow" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/server-side-flow" >Google Sign-In for Server-Side Apps</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/disconnect" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/disconnect" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/disconnect" >Disconnect and Revoke Scopes</a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Cross-Platform Integration </div></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/cross-platform-sign-in" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/cross-platform-sign-in" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/cross-platform-sign-in" >Cross-Platform Single Sign-In</a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Resources </div></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/troubleshooting" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/troubleshooting" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/troubleshooting" >Troubleshooting</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/gsi-with-fedcm" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/gsi-with-fedcm" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/gsi-with-fedcm" >Use FedCM APIs</a></li><li class="devsite-nav-item"><a href="/identity/sign-in/web/quick-migration-guide" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/quick-migration-guide" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/quick-migration-guide" >Migrate from Google+ Sign-In</a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> Reference </div></li><li class="devsite-nav-item devsite-nav-deprecated"><a href="/identity/sign-in/web/reference" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/sign-in/web/reference" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/sign-in/web/reference" >JavaScript Client Reference</a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-deprecated"><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"> Accelerated Mobile Pages </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/identity/gsi/web/amp/amp" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/amp/amp" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/amp/amp" >Display One Tap in AMP pages</a></li><li class="devsite-nav-item"><a href="/identity/gsi/web/amp/amp-reference" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/gsi/web/amp/amp-reference" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/gsi/web/amp/amp-reference" >AMP Component API</a></li></ul></div></li> </ul> <ul class="devsite-nav-list" menu="Authentication" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> Sign In with Google SDKs </li> <li class="devsite-nav-item"> <a href="/identity/android-credential-manager" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential Manager for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Credential Manager for Android </a> </li> <li class="devsite-nav-item"> <a href="/identity/gsi/web/guides/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Sign In with Google for Web (including One Tap)" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Sign In with Google for Web (including One Tap) </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/ios/start" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for iOS and macOS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Google Sign-In for iOS and macOS </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Industry standards </li> <li class="devsite-nav-item"> <a href="/identity/passkeys" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Passkeys" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Passkeys </a> </li> <li class="devsite-nav-item"> <a href="/identity/openid-connect/openid-connect" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: OpenID Connect" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> OpenID Connect </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Legacy Sign In </li> <li class="devsite-nav-item"> <a href="/identity/one-tap/android/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: One Tap sign-up/sign-in for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> One Tap sign-up/sign-in for Android </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/android/legacy-start-integrating" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Google Sign-In for Android </a> </li> 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class="devsite-main-content" has-book-nav > <devsite-content> <article class="devsite-article"> <div class="devsite-banner devsite-banner-announcement nocontent" background="google-red" > <div class="devsite-banner-message"> <div class="devsite-banner-message-text"> Google Identity Services is migrating to FedCM APIs. Follow the <a href="/identity/gsi/web/guides/fedcm-migration">migration guide</a> to review potential changes and avoid negative impacts for user sign-in to your website. </div> </div> </div> <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/products" 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="" > Products </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/identity" 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="Google Identity" > Google Identity </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/identity/authentication" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="4" track-type="globalNav" track-name="breadcrumb" track-metadata-position="4" track-metadata-eventdetail="Authentication" > Authentication </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/identity/gsi/web/guides/overview" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="5" track-type="globalNav" track-name="breadcrumb" track-metadata-position="5" track-metadata-eventdetail="" > Sign In with Google for Web </a> </li> </ul> <devsite-thumb-rating position="header"> </devsite-thumb-rating> </div> <devsite-feedback position="header" project-name="Authentication" product-id="5186570" bucket="Identity guides" context="External devsite feedback" version="t-devsite-webserver-20250211-r00-rc00.466928320959134316" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="header" class="nocontent" project-icon="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/developers/images/touchicon-180-new.png" > <button> Send feedback </button> </devsite-feedback> <h1 class="devsite-page-title" tabindex="-1"> Verify the Google ID token on your server side </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> Stay organized with collections Save and categorize content based on your preferences. </devsite-feature-tooltip> <devsite-key-takeaways></devsite-key-takeaways> <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 "> After Google returns an ID token, it's submitted by an HTTP <code translate="no" dir="ltr">POST</code> method request, with the parameter name <code translate="no" dir="ltr">credential</code>, to your login endpoint. The following is an example in the Python language that shows the usual steps to validate and consume the ID token: <ol> <li>Verify the Cross-Site Request Forgery (CSRF) token. When you submit credentials to your login endpoint, we use the double-submit-cookie pattern to prevent CSRF attacks. Before each submission, we generate a token. Then, the token is put into both the cookie and the post body, as shown in the following code example: <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="scdoc">csrf_token_cookie = self.request.cookies.get('g_csrf_token') if not csrf_token_cookie: webapp2.abort(400, 'No CSRF token in Cookie.') csrf_token_body = self.request.get('g_csrf_token') if not csrf_token_body: webapp2.abort(400, 'No CSRF token in post body.') if csrf_token_cookie != csrf_token_body: webapp2.abort(400, 'Failed to verify double submit cookie.')</pre></devsite-code></li> <li>Verify the ID token. To verify that the token is valid, ensure that the following criteria are satisfied: <ul> <li>The ID token is properly signed by Google. Use Google's public keys (available in <a href="https://www.googleapis.com/oauth2/v3/certs">JWK</a> or <a href="https://www.googleapis.com/oauth2/v1/certs">PEM</a> format) to verify the token's signature. These keys are regularly rotated; examine the <code translate="no" dir="ltr">Cache-Control</code> header in the response to determine when you should retrieve them again.</li> <li>The value of <code translate="no" dir="ltr">aud</code> in the ID token is equal to one of your app's client IDs. This check is necessary to prevent ID tokens issued to a malicious app being used to access data about the same user on your app's backend server.</li> <li>The value of <code translate="no" dir="ltr">iss</code> in the ID token is equal to <code translate="no" dir="ltr">accounts.google.com</code> or <code translate="no" dir="ltr">https://accounts.google.com</code>. <li>The expiry time (<code translate="no" dir="ltr">exp</code>) of the ID token has not passed.</li> <li>If you need to validate that the ID token represents a Google Workspace or Cloud organization account, you can check the <code translate="no" dir="ltr">hd</code> claim, which indicates the hosted domain of the user. This must be used when restricting access to a resource to only members of certain domains. The absence of this claim indicates that the account does not belong to a Google hosted domain.</li> </ul> Using the <code translate="no" dir="ltr">email</code>, <code translate="no" dir="ltr">email_verified</code> and <code translate="no" dir="ltr">hd</code> fields, you can determine if Google hosts and is authoritative for an email address. In the cases where Google is authoritative, the user is known to be the legitimate account owner, and you may skip password or other challenge methods. Cases where Google is authoritative: <ul> <li><code translate="no" dir="ltr">email</code> has a <code translate="no" dir="ltr">@gmail.com</code> suffix, this is a Gmail account.</li> <li><code translate="no" dir="ltr">email_verified</code> is true and <code translate="no" dir="ltr">hd</code> is set, this is a G Suite account.</li> </ul> Users may register for Google Accounts without using Gmail or G Suite. When <code translate="no" dir="ltr">email</code> does not contain a <code translate="no" dir="ltr">@gmail.com</code> suffix and <code translate="no" dir="ltr">hd</code> is absent, Google is not authoritative and password or other challenge methods are recommended to verify the user. <code translate="no" dir="ltr">email_verified</code> can also be true as Google initially verified the user when the Google account was created, however ownership of the third party email account may have since changed. Rather than writing your own code to perform these verification steps, we strongly recommend using a Google API client library for your platform, or a general-purpose JWT library. For development and debugging, you can call our <code translate="no" dir="ltr">tokeninfo</code> validation endpoint. <h3 id="using-a-google-api-client-library" data-text="Using a Google API Client Library" tabindex="-1">Using a Google API Client Library</h3> Using one of the <a href="/api-client-library">Google API Client Libraries</a> (e.g. <a href="/api-client-library/java/google-api-java-client/setup">Java</a>, <a href="https://github.com/google/google-api-nodejs-client">Node.js</a>, <a href="/api-client-library/php/start/get_started">PHP</a>, <a href="https://google-auth.readthedocs.io/">Python</a>) is the recommended way to validate Google ID tokens in a production environment. <section class="kd-tabbed-horz"> <article class="selected"> <header>Java</header> To validate an ID token in Java, use the <a href="https://github.com/googleapis/google-api-java-client/blob/master/google-api-client/src/main/java/com/google/api/client/googleapis/auth/oauth2/GoogleIdTokenVerifier.java"> GoogleIdTokenVerifier</a> object. For example: <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Python">import com.google.api.client.googleapis.auth.oauth2.GoogleIdToken; import com.google.api.client.googleapis.auth.oauth2.GoogleIdToken.Payload; import com.google.api.client.googleapis.auth.oauth2.GoogleIdTokenVerifier; ... GoogleIdTokenVerifier verifier = new GoogleIdTokenVerifier.Builder(transport, jsonFactory) // Specify the WEB_CLIENT_ID of the app that accesses the backend: .setAudience(Collections.singletonList(WEB_CLIENT_ID)) // Or, if multiple clients access the backend: //.setAudience(Arrays.asList(WEB_CLIENT_ID_1, WEB_CLIENT_ID_2, WEB_CLIENT_ID_3)) .build(); // (Receive idTokenString by HTTPS POST) GoogleIdToken idToken = verifier.verify(idTokenString); if (idToken != null) { Payload payload = idToken.getPayload(); // Print user identifier String userId = payload.getSubject(); System.out.println("User ID: " + userId); // Get profile information from payload String email = payload.getEmail(); boolean emailVerified = Boolean.valueOf(payload.getEmailVerified()); String name = (String) payload.get("name"); String pictureUrl = (String) payload.get("picture"); String locale = (String) payload.get("locale"); String familyName = (String) payload.get("family_name"); String givenName = (String) payload.get("given_name"); // Use or store profile information // ... } else { System.out.println("Invalid ID token."); }</pre></devsite-code> The <code translate="no" dir="ltr">GoogleIdTokenVerifier.verify()</code> method verifies the JWT signature, the <code translate="no" dir="ltr">aud</code> claim, the <code translate="no" dir="ltr">iss</code> claim, and the <code translate="no" dir="ltr">exp</code> claim. If you need to validate that the ID token represents a Google Workspace or Cloud organization account, you can verify the <code translate="no" dir="ltr">hd</code> claim by checking the domain name returned by the <code translate="no" dir="ltr">Payload.getHostedDomain()</code> method. The domain of the <code translate="no" dir="ltr">email</code> claim is insufficient to ensure that the account is managed by a domain or organization. </article> <article> <header>Node.js</header> To validate an ID token in Node.js, use the <a href="https://github.com/google/google-auth-library-nodejs">Google Auth Library for Node.js</a>. Install the library: <div></div><devsite-code><pre translate="no" dir="ltr" is-upgraded>npm install google-auth-library --save</pre></devsite-code> Then, call the <code translate="no" dir="ltr">verifyIdToken()</code> function. For example: <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="GDScript">const {OAuth2Client} = require('google-auth-library'); const client = new OAuth2Client(); async function verify() { const ticket = await client.verifyIdToken({ idToken: token, audience: WEB_CLIENT_ID, // Specify the WEB_CLIENT_ID of the app that accesses the backend // Or, if multiple clients access the backend: //[WEB_CLIENT_ID_1, WEB_CLIENT_ID_2, WEB_CLIENT_ID_3] }); const payload = ticket.getPayload(); const userid = payload['sub']; // If the request specified a Google Workspace domain: // const domain = payload['hd']; } verify().catch(console.error);</pre></devsite-code> The <code translate="no" dir="ltr">verifyIdToken</code> function verifies the JWT signature, the <code translate="no" dir="ltr">aud</code> claim, the <code translate="no" dir="ltr">exp</code> claim, and the <code translate="no" dir="ltr">iss</code> claim. If you need to validate that the ID token represents a Google Workspace or Cloud organization account, you can check the <code translate="no" dir="ltr">hd</code> claim, which indicates the hosted domain of the user. This must be used when restricting access to a resource to only members of certain domains. The absence of this claim indicates that the account does not belong to a Google hosted domain. </article> <article> <header>PHP</header> To validate an ID token in PHP, use the <a href="https://github.com/google/google-api-php-client/">Google API Client Library for PHP</a>. Install the library (for example, using Composer): <div></div><devsite-code><pre translate="no" dir="ltr" is-upgraded>composer require google/apiclient</pre></devsite-code> Then, call the <code translate="no" dir="ltr">verifyIdToken()</code> function. For example: <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="GDScript">require_once 'vendor/autoload.php'; // Get $id_token via HTTPS POST. $client = new Google_Client(['client_id' => $WEB_CLIENT_ID]); // Specify the WEB_CLIENT_ID of the app that accesses the backend $payload = $client->verifyIdToken($id_token); if ($payload) { $userid = $payload['sub']; // If the request specified a Google Workspace domain //$domain = $payload['hd']; } else { // Invalid ID token }</pre></devsite-code> The <code translate="no" dir="ltr">verifyIdToken</code> function verifies the JWT signature, the <code translate="no" dir="ltr">aud</code> claim, the <code translate="no" dir="ltr">exp</code> claim, and the <code translate="no" dir="ltr">iss</code> claim. If you need to validate that the ID token represents a Google Workspace or Cloud organization account, you can check the <code translate="no" dir="ltr">hd</code> claim, which indicates the hosted domain of the user. This must be used when restricting access to a resource to only members of certain domains. The absence of this claim indicates that the account does not belong to a Google hosted domain. </article> <article> <header>Python</header> To validate an ID token in Python, use the <a href="https://google-auth.readthedocs.io/en/latest/reference/google.oauth2.id_token.html#google.oauth2.id_token.verify_oauth2_token">verify_oauth2_token</a> function. For example: <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Python">from google.oauth2 import id_token from google.auth.transport import requests # (Receive token by HTTPS POST) # ... try: # Specify the WEB_CLIENT_ID of the app that accesses the backend: idinfo = id_token.verify_oauth2_token(token, requests.Request(), WEB_CLIENT_ID) # Or, if multiple clients access the backend server: # idinfo = id_token.verify_oauth2_token(token, requests.Request()) # if idinfo['aud'] not in [WEB_CLIENT_ID_1, WEB_CLIENT_ID_2, WEB_CLIENT_ID_3]: # raise ValueError('Could not verify audience.') # If the request specified a Google Workspace domain # if idinfo['hd'] != DOMAIN_NAME: # raise ValueError('Wrong domain name.') # ID token is valid. Get the user's Google Account ID from the decoded token. userid = idinfo['sub'] except ValueError: # Invalid token pass</pre></devsite-code> The <code translate="no" dir="ltr">verify_oauth2_token</code> function verifies the JWT signature, the <code translate="no" dir="ltr">aud</code> claim, and the <code translate="no" dir="ltr">exp</code> claim. You must also verify the <code translate="no" dir="ltr">hd</code> claim (if applicable) by examining the object that <code translate="no" dir="ltr">verify_oauth2_token</code> returns. If multiple clients access the backend server, also manually verify the <code translate="no" dir="ltr">aud</code> claim. </article> </section> <aside class="key-point">Key Point: The ID token is returned in the <code translate="no" dir="ltr">credential</code> field, instead of the <code translate="no" dir="ltr">g_csrf_token</code> field.</aside></li> <li>Once the token's validity is confirmed, you can use the information in the <a href="/identity/gsi/web/reference/js-reference#credential">Google ID token</a> to correlate the account status of your site: <ul> <li>An unregistered user: You can show a sign-up user interface (UI) that allows the user to provide additional profile information, if required. It also allows the user to silently create the new account and a logged-in user session.</li> <li>An existing account that already exists in your site: You can show a web page that allows the end user to input their password and link the legacy account with their Google credentials. This confirms that the user has access to the existing account.</li> <li>A returning federated user: You can silently sign the user in.</li> </ul></li> </ol> <aside class="key-point">Key Point: Only use <a href="/identity/gsi/web/reference/js-reference#credential">Google ID token</a> <code translate="no" dir="ltr">sub</code> field as identifier for the user as it is unique among all Google Accounts and never reused. You should store the <code translate="no" dir="ltr">sub</code> field and associate it with the user in your account management system. 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