概览
此项评估旨在检查初始非首屏加载的广告是否不超过 3 个。非首屏区域仅在用户向下滚动后才可见。用户看到此区域的广告不太可能被用户看到，因此加载过多此类广告可能会降低可见率并降低网页性能。
建议
延迟加载位于非首屏位置的广告。延迟加载是一种技术，可阻止视口外的广告被请求并呈现，直到广告即将滚动到用户视野范围内为止。如需查看示例实现，请参阅 GPT 延迟加载示例。
延迟加载非首屏广告
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-07-25。
[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003e"Below the fold" ads are those outside the initial view and require scrolling to be seen, impacting viewability and page performance if loaded excessively.\u003c/p\u003e\n"],["\u003cp\u003eThis audit ensures no more than three ads are initially loaded below the fold to enhance user experience.\u003c/p\u003e\n"],["\u003cp\u003eLazy loading is recommended for below-the-fold ads, delaying their request and rendering until they are nearly visible.\u003c/p\u003e\n"],["\u003cp\u003eBy implementing lazy loading techniques, publishers can improve viewability rates and optimize page performance, ensuring a better user experience.\u003c/p\u003e\n"]]],["\"Below the fold\" refers to the page area outside the initial view. The audit checks that no more than three ads are initially loaded in this area, as excessive ads can lower viewability and performance. It's recommended to lazy load ads below the fold, preventing them from loading until they're near the viewport. This technique enhances page performance and viewability. The GPT lazy loading sample is suggested as a way to implement this.\n"],null,["# Lazily load ads below the fold\n\nOverview\n--------\n\n| **Key Term:** \"below the fold\" refers to the area of the page outside of the initial viewport.\n\nThis audit checks that no more than three ads are initially loaded below the\nfold. The area below the fold only becomes visible after a user scrolls down.\nAds in this area are less likely to be seen by users, so loading an excessive\nnumber of them can lower\n[viewability rates](https://support.google.com/admanager/answer/4524488) and\ndecrease page performance.\n\nRecommendations\n---------------\n\nLazily load ads that are positioned below the fold. Lazy loading is a technique\nthat prevents ads outside of the viewport from being requested and rendered\nuntil they are close to being scrolled into view. See the\n[GPT lazy loading sample](https://developers.google.com/publisher-tag/samples/lazy-loading)\nfor an example implementation.\n\nMore information\n----------------\n\n[GPT lazy loading API](https://developers.google.com/publisher-tag/reference#googletag.PubAdsService_enableLazyLoad) \n\n[Viewability best practices](https://support.google.com/admanager/answer/6199883) \n[View audit source](https://github.com/googleads/publisher-ads-lighthouse-plugin/tree/HEAD/lighthouse-plugin-publisher-ads/audits/ads-in-viewport.js) [Improve this article](https://github.com/googleads/publisher-ads-lighthouse-plugin/tree/HEAD/docs/audits/ads-in-viewport.md) [Report an issue](https://github.com/googleads/publisher-ads-lighthouse-plugin/issues/new?labels=documentation&template=documentation-feedback.md&title=Documentation+feedback%3A+ads-in-viewport.md)\n\n\u003cbr /\u003e"]]