Réduire le temps de blocage JS lié aux annonces
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Présentation
Cet audit mesure le temps de blocage imputable aux scripts liés aux annonces. Cela permet de capturer le moment où le thread JS est bloqué par un script publicitaire, suffisamment longtemps pour être visible par les utilisateurs, car cela peut avoir un impact direct sur le délai de saisie ou le chargement du contenu.
Recommandations
Le facteur le plus important pour le temps de blocage JS lié aux annonces est le nombre d'annonces
chargées en même temps. Voici nos recommandations:
Pour savoir comment le temps de blocage est défini, consultez cet article sur le temps de blocage total.
Un script est considéré comme lié à une annonce s'il s'agit d'un tag d'emplacement publicitaire ou s'il est étiqueté en tant que script "annonce" par un site Web tiers.
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2024/06/26 (UTC).
[null,null,["Dernière mise à jour le 2024/06/26 (UTC)."],[[["\u003cp\u003eThis audit identifies the time users experience delays due to ad scripts blocking the main thread, which negatively impacts loading speed and responsiveness.\u003c/p\u003e\n"],["\u003cp\u003eThe primary cause of ad-related blocking is loading too many ads simultaneously, so it is recommended to reduce the number or density of ads.\u003c/p\u003e\n"],["\u003cp\u003eOptimizing ad loading by lazy loading below-the-fold ads and reducing batch sizes for Single Request Architecture can minimize blocking and enhance user experience.\u003c/p\u003e\n"],["\u003cp\u003eAd-related scripts are identified through ad tags and third-party web classifications, providing insights into specific scripts contributing to blocking.\u003c/p\u003e\n"]]],["This audit measures blocking time caused by ad-related scripts, impacting user experience through input delay and content loading. Key actions to reduce this time include: loading fewer ads concurrently or reducing ad density, lazy loading ads below the fold, and minimizing batch sizes with Single Request Architecture (SRA) in GPT. A script is ad-related if it is an ad tag or identified as such by Third Party Web. Total blocking time details are in the mentioned article.\n"],null,["# Reduce Ad JS Blocking Time\n\nOverview\n--------\n\nThis audit measures the amount of [blocking time](https://web.dev/tbt/)\nattributable to ad-related scripts. This captures time where the JS thread is\nblocked by an ad-related script for long enough to be noticeable by users as it\ncan directly affect input delay or content loading.\n\nRecommendations\n---------------\n\nThe most important factor in ad JS blocking time is how many ads are being\nloaded at once. Our recommendations are:\n\n- [Load fewer ads at once or reduce ad density](https://developers.google.com/publisher-ads-audits/reference/audits/viewport-ad-density), if feasible\n- [Lazy load ads below the fold](https://developers.google.com/publisher-ads-audits/reference/audits/ads-in-viewport)\n- [Reduce batch sizes if using Single Request Architecture (SRA) in GPT](https://developers.google.com/publisher-tag/guides/publisher-console-messages#TOO_MANY_SLOTS_IN_SRA_REQUEST).\n\nMore information\n----------------\n\nTo learn how blocking time is defined, see this article on\n[Total Blocking Time](https://web.dev/lighthouse-total-blocking-time/#what-tbt-measures)\n\nA script is considered to be ad-related if it is either an ad tag or labeled as\nan \"ad\" script by [Third Party Web](https://github.com/patrickhulce/third-party-web). \n[View audit source](https://github.com/googleads/publisher-ads-lighthouse-plugin/tree/HEAD/lighthouse-plugin-publisher-ads/audits/total-ad-blocking-time.js) [Improve this article](https://github.com/googleads/publisher-ads-lighthouse-plugin/tree/HEAD/docs/audits/total-ad-blocking-time.md) [Report an issue](https://github.com/googleads/publisher-ads-lighthouse-plugin/issues/new?labels=documentation&template=documentation-feedback.md&title=Documentation+feedback%3A+total-ad-blocking-time.md)\n\n\u003cbr /\u003e"]]
