展示次数有效期
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
所有类型的广告素材都会使用延迟记录展示次数的功能。这意味着,在广告素材呈现并将展示请求发回给 Google 之前,系统不会统计展示次数。由于存在此种二次请求,实时出价明细和实时出价问题排查可能会返回的胜出出价数量多于可结算的展示次数。
失效期限
基于展示的结算事件的到期期限因广告资源类型而异。请求的到期时间(以秒为单位)会发送到 BidRequest.imp.exp
字段中。
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):2025-08-21。
[null,null,["最后更新时间 (UTC):2025-08-21。"],[[["\u003cp\u003eAll creative types use delayed impressions, meaning impressions are only counted after the creative renders and sends a request back to Google.\u003c/p\u003e\n"],["\u003cp\u003eThis delayed impression process can lead to a discrepancy between winning bids and billable impressions, especially in Real-Time Bidding (RTB) scenarios.\u003c/p\u003e\n"],["\u003cp\u003eImpression billing has varying expiration windows depending on the inventory type: App Open, server-side, and podded in-stream video requests have a 4-6 hour window, while all other inventory has a 1-hour window.\u003c/p\u003e\n"]]],[],null,["# Impressions expiration\n\nAll creative types use\n[delayed impressions](//support.google.com/admanager/answer/2521337).\nThis means that impressions aren't counted until the creative renders and\nsends an impression request back to Google. Because of this secondary request,\n[RTB breakout](//support.google.com/authorizedbuyers/answer/6156706) and\n[RTB Troubleshooting](/authorized-buyers/apis/guides/v2/rtb-troubleshooting)\ncan return a greater number of winning bids than billable impressions.\n\nExpiration windows\n------------------\n\nThe expiration window for impressions-based billing events varies by inventory\ntype. The expiration window of the request in seconds is sent in the\n`BidRequest.imp.exp` field.\n| **Important:** Google records and bills for all impressions received within the following time periods. \\* [App Open](//support.google.com/admanager/answer/9351867) requests: 4 hours \\* [Server-side](//support.google.com/admanager/answer/6147120) requests: 4-6 hours \\* [Podded in-stream](//support.google.com/admanager/answer/2554762) video inventory: 4-6 hours \\* All other inventory: 1 hour"]]