Instalar chaves de caixa de seleção (teste de caixa de seleção) em sites
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Nesta página, explicamos como instalar uma chave de caixa de seleção com o teste de caixa de seleção Não sou um robô no seu site.
Dependendo de como você configurou a opção de segurança de teste ao criar
a chave de caixa de seleção, o reCAPTCHA pode exigir que o usuário final resolva
um teste de CAPTCHA antes de gerar um token válido.
No elemento com a classe g-recaptcha, inclua também o atributo data-sitekey
e defina-o como igual à chave de caixa de seleção.
Para especificar uma ação, inclua o atributo data-action e defina-o como um
nome de ação. Para mais orientações, consulte Ações.
O script deve ser carregado usando o protocolo HTTPS e pode ser incluído em qualquer ponto da página sem restrição.
O reCAPTCHA usa o idioma do navegador por padrão. Se você quiser
especificar um idioma diferente, use o atributo hl=LANG
no script.
Por exemplo, para usar o francês, especifique o seguinte:
<script src="https://www.google.com/recaptcha/enterprise.js?hl=fr"></script>.
Para saber mais sobre os idiomas aceitos, consulte
códigos de idioma para reCAPTCHA.
O exemplo a seguir é um snippet de exemplo de código:
Com esse método, é possível renderizar o widget por um script JavaScript
atual usando o método grecaptcha.enterprise.render().
Use esse método para evitar disputas ou se quiser mostrar o widget com base
na lógica atual do JavaScript.
Para garantir que não haja disputas ao renderizar o widget explicitamente,
analise as considerações a seguir:
Primeiro, ordene seus scripts com a função de callback e, depois, com
a API reCAPTCHA.
Use os parâmetros async e defer
nas tags script.
Para renderizar o widget explicitamente, siga estas etapas:
Para adiar a renderização do widget, faça o seguinte:
Especifique a função de callback onload antes que a
API reCAPTCHA e outras dependências sejam carregadas.
<script type="text/javascript">
var onloadCallback = function() {
alert("grecaptcha is ready!");
};
</script>
Depois que a função de callback for executada, chame o
método grecaptcha.enterprise.render() com os seguintes parâmetros
da
API JavaScript.
container: o elemento HTML para renderizar o widget reCAPTCHA.
Especifique o ID do contêiner (string) ou o próprio elemento DOM.
parameters: um objeto que contém parâmetros como pares de chave-valor,
por exemplo, {"sitekey": "KEY_ID", "theme": "light"}.
action: especifique o nome da ação associada ao elemento
protegido.
Para renderizar o widget, insira o
recurso do JavaScript.
Defina onload como o nome da função de callback onload e
inclua render=explicit.
O reCAPTCHA usa o idioma do navegador por padrão. Se você quiser
especificar um idioma diferente, use o atributo hl=LANG
no script.
Por exemplo, para usar o francês, especifique o seguinte:
<script src="https://www.google.com/recaptcha/enterprise.js?hl=fr"></script>.
Para saber mais sobre os idiomas aceitos, consulte
códigos de idioma para reCAPTCHA.
[[["Fácil de entender","easyToUnderstand","thumb-up"],["Meu problema foi resolvido","solvedMyProblem","thumb-up"],["Outro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Informações incorretas ou exemplo de código","incorrectInformationOrSampleCode","thumb-down"],["Não contém as informações/amostras de que eu preciso","missingTheInformationSamplesINeed","thumb-down"],["Problema na tradução","translationIssue","thumb-down"],["Outro","otherDown","thumb-down"]],["Última atualização 2025-09-04 UTC."],[],[],null,["# Install checkbox keys (checkbox challenge) on websites\n\nThis page explains how to install a checkbox key with the\n**I'm not a robot** checkbox challenge on your website.\nDepending on how you have configured the challenge security option when creating\nthe checkbox key, reCAPTCHA might require the end user to solve\na CAPTCHA challenge before generating a valid token.\n\nBefore you begin\n----------------\n\n1.\n\n [Prepare your environment for reCAPTCHA](/recaptcha/docs/prepare-environment).\n\n2. [Create a checkbox key](/recaptcha/docs/create-key-website).\n\n Alternatively, you can copy the ID of an existing checkbox key by\n performing one of the following steps:\n\n\n - To copy the ID of an existing key from the **Google Cloud console**,\n do the following:\n\n 1. Go to the **reCAPTCHA** page.\n\n [Go to reCAPTCHA](https://console.cloud.google.com/security/recaptcha)\n 2. In the reCAPTCHA keys list, hold the pointer over the key you want to copy, and then click content_copy .\n - To copy the ID of an existing key using the **REST API** , use the [projects.keys.list](/recaptcha/docs/reference/rest/v1/projects.keys/list) method.\n - To copy the ID of an existing key using the **gcloud CLI** , use the [gcloud recaptcha keys list](/sdk/gcloud/reference/recaptcha/keys/list) command.\n\n \u003cbr /\u003e\n\n\u003cbr /\u003e\n\nRender the reCAPTCHA widget on the frontend\n-------------------------------------------\n\nTo display the reCAPTCHA widget on your web page, use one of the following\nmethods: \n\n#### Automatically render the widget\n\nWith this method, you can render the widget on any object (such as a `div` or\na `span`) with the `g-recaptcha` class.\n\nOn your web page, include the necessary [JavaScript resource](/recaptcha/docs/api-ref-checkbox-keys#resource_js)\nand an HTML element with the [`g-recaptcha`](/recaptcha/docs/api-ref-checkbox-keys#attributes_parameters) class.\n\nIn the element with the `g-recaptcha` class, also include the `data-sitekey`\nattribute and set it equal to your checkbox key.\n\nTo specify an action, include the `data-action` attribute and set it to an\naction name. For more guidance, see [Actions](/recaptcha/docs/actions-website).\n| **Important:** The action that you specify is returned as part of the assessment. You must verify that the action in the JSON response of the assessment matches the expected action that you specify when creating an assessment. For example, a login action should be returned on your login page. If there is a mismatch, it indicates that an attacker is attempting to falsify actions.\n\nThe script must be loaded using the HTTPS protocol and can be included from any\npoint on the page without restriction.\n\nreCAPTCHA uses the browser's language by default. If you want to\nspecify a different language, use the `hl=`\u003cvar translate=\"no\"\u003eLANG\u003c/var\u003e attribute\nin your script.\nFor example, to use French, specify the following:\n`\u003cscript src=\"https://www.google.com/recaptcha/enterprise.js?hl=fr\"\u003e\u003c/script\u003e`.\nTo learn about the supported languages, see\n[language codes for reCAPTCHA](/recaptcha/docs/language).\n\nThe following example is a snippet of sample code: \n\n \u003chtml\u003e\n \u003chead\u003e\n \u003ctitle\u003ereCAPTCHA demo: Simple page\u003c/title\u003e\n \u003cscript src=\"https://www.google.com/recaptcha/enterprise.js\" async defer\u003e\u003c/script\u003e\n \u003c/head\u003e\n \u003cbody\u003e\n \u003cform action=\"?\" method=\"POST\"\u003e\n \u003cdiv class=\"g-recaptcha\" data-sitekey=\"\u003cvar translate=\"no\"\u003eKEY_ID\u003c/var\u003e\" data-action=\"LOGIN\"\u003e\u003c/div\u003e\n \u003cbr/\u003e\n \u003cinput type=\"submit\" value=\"Submit\"\u003e\n \u003c/form\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\n\u003cbr /\u003e\n\n#### Explicitly render the widget\n\n\u003cbr /\u003e\n\n\nWith this method, you can render the widget through an existing JavaScript\nscript using the `grecaptcha.enterprise.render()` method.\nUse this method to avoid race conditions or if you want to show the widget based\non the existing JavaScript logic.\n\nTo ensure there are no race conditions when rendering the widget explicitly,\nreview the following considerations:\n\n- Order your scripts with the callback function first, and then the reCAPTCHA API.\n- Use the `async` and `defer` parameters in the `script` tags.\n\nTo render the widget explicitly, follow these steps:\n\n1. To defer rendering of the widget, do the following:\n\n 1. Specify your `onload` callback function before the\n reCAPTCHA API and other dependencies are loaded.\n\n \u003cscript type=\"text/javascript\"\u003e\n var onloadCallback = function() {\n alert(\"grecaptcha is ready!\");\n };\n \u003c/script\u003e\n\n 2. After your callback function is executed, call the\n `grecaptcha.enterprise.render()` method with the following parameters\n from the\n [JavaScript API](/recaptcha/docs/api-ref-checkbox-keys#javascript_api).\n\n - **container**: The HTML element to render the reCAPTCHA widget.\n Specify either the ID of the container (string) or the DOM element\n itself.\n\n - **parameters** : An object containing parameters as key-value pairs,\n for example, {\"sitekey\": \"\u003cvar translate=\"no\"\u003eKEY_ID\u003c/var\u003e\", \"theme\": \"light\"}.\n\n - **action**: Specify the action name associated with the protected\n element.\n\n | **Important:** The action that you specify is returned as part of the assessment. You must verify that the action in the JSON response of the assessment matches the expected action that you specify when creating an assessment. For example, a login action should be returned on your login page. If there is a mismatch, it indicates that an attacker is attempting to falsify actions.\n\n grecaptcha.enterprise.render('html_element', {\n 'sitekey' : '\u003cvar translate=\"no\"\u003eKEY_ID\u003c/var\u003e',\n 'action': 'LOGIN',\n });\n\n2. To render the widget, insert the\n [JavaScript resource](/recaptcha/docs/api-ref-checkbox-keys#resource_js).\n Set `onload` to the name of your onload callback function, and\n include `render=explicit`.\n\n reCAPTCHA uses the browser's language by default. If you want to\n specify a different language, use the `hl=`\u003cvar translate=\"no\"\u003eLANG\u003c/var\u003e attribute\n in your script.\n For example, to use French, specify the following:\n `\u003cscript src=\"https://www.google.com/recaptcha/enterprise.js?hl=fr\"\u003e\u003c/script\u003e`.\n To learn about the supported languages, see\n [language codes for reCAPTCHA](/recaptcha/docs/language). \n\n \u003cscript src=\"https://www.google.com/recaptcha/enterprise.js?onload=\u003cvar translate=\"no\"\u003eonload_Callback_function\u003c/var\u003e&render=explicit\"\n async defer\u003e\n \u003c/script\u003e\n\n**Example 1**\n\nThe following code sample shows explicit rendering after an `onload` callback: \n\n \u003chtml\u003e\n \u003chead\u003e\n \u003ctitle\u003ereCAPTCHA demo: Explicit render after an onload callback\u003c/title\u003e\n \u003cscript type=\"text/javascript\"\u003e\n var onloadCallback = function() {\n grecaptcha.enterprise.render('html_element', {\n 'sitekey' : '\u003cvar translate=\"no\"\u003eKEY_ID\u003c/var\u003e',\n });\n };\n \u003c/script\u003e\n \u003c/head\u003e\n \u003cbody\u003e\n \u003cform action=\"?\" method=\"POST\"\u003e\n \u003cdiv id=\"html_element\"\u003e\u003c/div\u003e\n \u003cbr\u003e\n \u003cinput type=\"submit\" value=\"Submit\"\u003e\n \u003c/form\u003e\n \u003cscript src=\"https://www.google.com/recaptcha/enterprise.js?onload=onloadCallback&render=explicit\"\n async defer\u003e\n \u003c/script\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\n**Example 2**\n\nThe following code sample shows explicit rendering of multiple widgets: \n\n \u003chtml\u003e\n \u003chead\u003e\n \u003ctitle\u003ereCAPTCHA demo: Explicit render for multiple widgets\u003c/title\u003e\n \u003cscript type=\"text/javascript\"\u003e\n var verifyCallback = function(response) {\n alert(response);\n };\n var widgetId1;\n var widgetId2;\n var onloadCallback = function() {\n // Renders the HTML element with id 'example1' as a reCAPTCHA widget.\n // The id of the reCAPTCHA widget is assigned to 'widgetId1'.\n widgetId1 = grecaptcha.enterprise.render('example1', {\n 'sitekey' : '\u003cvar translate=\"no\"\u003eKEY_ID\u003c/var\u003e',\n 'theme' : 'light'\n });\n widgetId2 = grecaptcha.enterprise.render(document.getElementById('example2'), {\n 'sitekey' : '\u003cvar translate=\"no\"\u003eKEY_ID\u003c/var\u003e',\n });\n grecaptcha.enterprise.render('example3', {\n 'sitekey' : '\u003cvar translate=\"no\"\u003eKEY_ID\u003c/var\u003e',\n 'callback' : verifyCallback,\n 'theme' : 'dark'\n });\n };\n \u003c/script\u003e\n \u003c/head\u003e\n \u003cbody\u003e\n \u003c!-- The g-recaptcha-response string displays in an alert message upon submit. --\u003e\n \u003cform action=\"javascript:alert(grecaptcha.enterprise.getResponse(widgetId1));\"\u003e\n \u003cdiv id=\"example1\"\u003e\u003c/div\u003e\n \u003cbr\u003e\n \u003cinput type=\"submit\" value=\"getResponse\"\u003e\n \u003c/form\u003e\n \u003cbr\u003e\n \u003c!-- Resets reCAPTCHA widgetId2 upon submit. --\u003e\n \u003cform action=\"javascript:grecaptcha.enterprise.reset(widgetId2);\"\u003e\n \u003cdiv id=\"example2\"\u003e\u003c/div\u003e\n \u003cbr\u003e\n \u003cinput type=\"submit\" value=\"reset\"\u003e\n \u003c/form\u003e\n \u003cbr\u003e\n \u003c!-- POSTs back to the page's URL upon submit with a g-recaptcha-response POST parameter. --\u003e\n \u003cform action=\"?\" method=\"POST\"\u003e\n \u003cdiv id=\"example3\"\u003e\u003c/div\u003e\n \u003cbr\u003e\n \u003cinput type=\"submit\" value=\"Submit\"\u003e\n \u003c/form\u003e\n \u003cscript src=\"https://www.google.com/recaptcha/enterprise.js?onload=onloadCallback&render=explicit\"\n async defer\u003e\n \u003c/script\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\n\u003cbr /\u003e\n\n\n\u003cbr /\u003e\n\nWhat's next\n-----------\n\n- To assess the reCAPTCHA response token, [create an assessment](/recaptcha/docs/create-assessment-website)."]]