网站显示的gg广告针对性不高或者显示公益广告问题

2007-07-30google

2,775 views

官方解释：网站显示的广告针对性不高或者显示公益广告，造成这一现象的原因可能有多种。以下列出了最常见的一些问题。

1.我们的系统尚未抓取到贵网站的所有网页。
您可能会发现，在将 AdSense 广告代码置于网页上之后，自己却没有看到最具针对性的广告。如果 Google 以前没有搜索过您的网站，则我们的抓取工具可能需要 48 小时或更长时间才能从您的网页收集内容。您在此期间可能会看到公益广告，不过这些广告无法为您带来收入。或者，您只能看到稍具针对性的广告。针对性会随时间而加强。

2.您的网页可能包含敏感内容，而对于这类内容不会显示相关的付费广告。
我们的系统已设置了特定的过滤器，防止我们的广告客户在可能含有负面内容、不健康内容甚至是攻击性内容的网页上做广告。尽管您的部分内容从本质上讲确实不应归入这些类别中的任何一种，不过，有时在网页上强调某些敏感话题也会使我们的服务器向此网页投放公益广告。

3.贵网站在网址中使用了会话 ID 号。
如果您的网页使用了会话 ID 号，则不能在这些网页上投放相关广告。因为每次有不同的用户查看网页，这一会话 ID 号都会发生变化，导致网址也跟着发生变化，所以，此网址不会出现在索引中，而是进入待抓取队列。而等到抓取到此网址时，会话很有可能已经终止。这就造成用户看到的网页始终无法进入索引。若要显示相关广告，就要删除会话 ID 号。

4.贵网站使用 robots.txt 排除文件限制了某些访问。
如果贵网站使用了 robots.txt 文件，则 AdSense 抓取工具可能无法抓取到您的网页，我们也就无法根据贵网站的内容向您投放最具针对性的广告。如果我们无法抓取某些网页或者无法理解网页内容，则可能会在这些网页上投放公益广告，而这些广告无法为您带来任何收入。

您完全可以做到既允许我们的抓取工具访问您的网页，同时又不会给任何其他抓取工具以许可权。您只需向 robots.txt 文件的开头添加以下两行即可：

User-agent: Mediapartners-Google*
Disallow:

经过这一改动，我们的 Googlebot 就能够抓取贵网站的内容，便于我们向您提供最具针对性的广告。

有关 robots 协议的更多信息，请访问 http://www.robots.org。

5.我们无法抓取您的网页。
有时，因为您的 Web 服务器出了问题或者到贵网站的连接出了问题，我们的抓取工具可能无法访问您的网页。如果我们在试图检索您的 robots.txt 文件时意外地收到服务器发生错误的信息，则在问题解决之前，您的网页将显示不具相关性的广告或公益广告。
如果我们的系统接到了您的 Web 服务器发生错误的信息，我们的抓取工具将定期尝试访问此网页，看看它是否已恢复正常。在我们的抓取工具能够访问此网页之前，您的网站将显示不具相关性的广告或公益广告。

6.贵网站使用了框架。

为了便于我们的系统根据贵网站的内容投放针对性更强的广告，请在生成广告代码时选中广告布局代码页的框架式网页复选框。这样做之后，我们的抓取工具将从您的框架中收集内容，便于我们针对您的内容投放广告。

7.AdSense 代码被置于 IFRAME 内。

我们的定位技术尚未面向在 IFRAME 内投放广告进行优化。如果您将 AdSense 代码置于 IFRAME 内，您的网站可能会显示针对性较差的广告或公益广告。为了实现更好的效果，请将我们的广告代码直接置入网页的源代码中。即使您进行了这些改动，也可能不会立即出现针对性较强的广告。我们可能需要 30 分钟或更长时间才能重新抓取您的网站，在此之前，您的网页可能会继续显示不具针对性的广告或公益广告。

8.您的网页需要登录。

目前我们的抓取工具还不能非常方便地访问需要登录的网页。另外，因为这些类型的网页不容易进行访问和审核，而且我们的 AdSense 专家也很难确认这些需要登录的网页是否符合 Google AdSense 政策，所以，我们无法对这些网页提供支持。

9.您在帐户过滤列表中添加了过多的网址。

如果您在过滤列表中添加了过多的网址，我们有时可能无法针对您的内容找到其他广告。因为这个原因，您可能也会在自己的网页上看到针对性不高的广告或公益广告。

10.您的网页包含的内容不够多。

贵网站上包含的信息不够多，我们的抓取工具不能判断您的网页内容。因此，我们可能无法确定能够显示在您的网页上的相关广告。请注意我们的抓取工具无法了解下述内容的含义：

* 音频和视频文件（.wma、.mpeg 和 .mov）
* mp3 文件 (.mp3)
* 图像（.jpeg 和 .bmp）
* Macromedia Flash 动画
* Java 小程序 (Applet)

在这些情况下，我们建议您在贵网站上提供除上述文件之外的更多内容，使得抓取工具收集有关贵网站的信息，从而显示相关广告。

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