Carregar a tag de anúncio de forma assíncrona
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Visão geral
Essa auditoria garante que os scripts da biblioteca de tags de anúncio sejam carregados de maneira assíncrona.
Por padrão, a execução do JavaScript é síncrona. Isso significa que, uma vez que um script
for encontrado, nenhum outro conteúdo poderá ser carregado até que o script
baixados, analisados e executados. Ativar a execução assíncrona impede
permitindo que o navegador continue processando outros recursos enquanto a
o script especificado é carregado em segundo plano. Isso mantém sua página responsiva
enquanto os scripts estão sendo carregados, e diminui o tempo necessário para carregar todos os
componentes de solução.
Recomendações
Inclua o atributo "async" na definição da tag do script. Exemplo:
Google AdSense
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
Google AdSense (anúncios automáticos)
<script async data-ad-client="ca-pub-xxxxxxxxxxxxxxxx" src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
Tag do editor do Google
<script async src="https://securepubads.g.doubleclick.net/tag/js/gpt.js"></script>
Os seguintes scripts da biblioteca de tags de anúncio são compatíveis:
Biblioteca de tags de anúncio |
Roteiros |
Google AdSense |
pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
pagead2.googlesyndication.com/pagead/show_ads.js
|
Tag do editor do Google |
googletagservices.com/tag/js/gpt.js
securepubads.g.doubleclick.net/tag/js/gpt.js
|
Primeiros passos com as Tags do editor do Google
Modos de solicitação da GPT e renderização assíncrona
Exceto em caso de indicação contrária, o conteúdo desta página é licenciado de acordo com a Licença de atribuição 4.0 do Creative Commons, e as amostras de código são licenciadas de acordo com a Licença Apache 2.0. Para mais detalhes, consulte as políticas do site do Google Developers. Java é uma marca registrada da Oracle e/ou afiliadas.
Última atualização 2025-07-25 UTC.
[null,null,["Última atualização 2025-07-25 UTC."],[[["\u003cp\u003eThis audit verifies if ad tag library scripts are loaded asynchronously to improve page performance.\u003c/p\u003e\n"],["\u003cp\u003eAsynchronous loading allows the browser to load other content while the script loads in the background, preventing delays and improving user experience.\u003c/p\u003e\n"],["\u003cp\u003eTo enable asynchronous loading, include the \u003ccode\u003easync\u003c/code\u003e attribute within the \u003ccode\u003e<script>\u003c/code\u003e tag when implementing ad tags like AdSense and Google Publisher Tag.\u003c/p\u003e\n"],["\u003cp\u003eSynchronous loading, where the browser waits for the script to fully load before proceeding, can negatively impact page load times and overall performance.\u003c/p\u003e\n"]]],["To optimize page load times, ad tag library scripts should load asynchronously. This is achieved by including the `async` attribute within the `\u003cscript\u003e` tag. Asynchronous loading allows the browser to continue loading other page content while the script downloads and executes in the background. Supported ad tag libraries include AdSense and Google Publisher Tag, with specific script URLs like `pagead2.googlesyndication.com/pagead/js/adsbygoogle.js` and `securepubads.g.doubleclick.net/tag/js/gpt.js` needing the `async` attribute.\n"],null,["# Load ad tag asynchronously\n\nOverview\n--------\n\nThis audit ensures ad tag library scripts are loaded asynchronously.\n\nBy default, JavaScript execution is synchronous. This means that once a script\nis encountered, no other content can be loaded until that script has been\ndownloaded, parsed, and executed. Opting into asynchronous execution prevents\nthis, allowing the browser to continue processing other resources while the\nspecified script is loaded in the background. This keeps your page responsive\nwhile scripts are loading and decreses the time necessary to load all critical\ncomponents.\n\nRecommendations\n---------------\n\nInclude the async attribute in the script tag definition. For example:\n\n### AdSense\n\n \u003cscript async src=\"https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js\"\u003e\u003c/script\u003e\n\n### AdSense (auto ads)\n\n \u003cscript async data-ad-client=\"ca-pub-xxxxxxxxxxxxxxxx\" src=\"https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js\"\u003e\u003c/script\u003e\n\n### Google Publisher Tag\n\n \u003cscript async src=\"https://securepubads.g.doubleclick.net/tag/js/gpt.js\"\u003e\u003c/script\u003e\n\nMore information\n----------------\n\nThe following ad tag library scripts are supported:\n\n| Ad Tag Library | Script(s) |\n|----------------------|-------------------------------------------------------------------------------------------------------------|\n| AdSense | `pagead2.googlesyndication.com/pagead/js/adsbygoogle.js` `pagead2.googlesyndication.com/pagead/show_ads.js` |\n| Google Publisher Tag | `googletagservices.com/tag/js/gpt.js` `securepubads.g.doubleclick.net/tag/js/gpt.js` |\n\n[Get Started with Google Publisher Tags](https://support.google.com/admanager/answer/1638622) \n\n[GPT request modes and asynchronous rendering](https://support.google.com/admanager/answer/183282) \n[View audit source](https://github.com/googleads/publisher-ads-lighthouse-plugin/tree/HEAD/lighthouse-plugin-publisher-ads/audits/async-ad-tags.js) [Improve this article](https://github.com/googleads/publisher-ads-lighthouse-plugin/tree/HEAD/docs/audits/async-ad-tags.md) [Report an issue](https://github.com/googleads/publisher-ads-lighthouse-plugin/issues/new?labels=documentation&template=documentation-feedback.md&title=Documentation+feedback%3A+async-ad-tags.md)\n\n\u003cbr /\u003e"]]