The ads displayed on the site are not targeted or show public service ads may have a variety of reasons. The most common problems are listed below.
Our system has not crawled to all the pages of your website.
You may find that you don't see the most relevant ads after you put the AdSense AD code on the page. If Google hasn't searched your site before, our crawlers may take 48 hours or more to collect content from your Web page. You may see public service advertisements during this period, and these ads will not bring you revenue. Or, you can only see a slightly correlated ad. Dependencies are enhanced over time.
your Web page may contain sensitive content and will not display related paid ads for this type of content.
Our system has set up specific filters to prevent our advertisers from advertising on Web pages that may contain negative content, unhealthy content, or even offensive content. Although the content of your Web pages should not be grouped in any of these categories in nature, sometimes highlighting sensitive topics on a Web page can also cause our servers to put public ads on this web page.
your Web site uses the session ID in the URL.
If your Web page uses the session ID, you cannot put ads on those pages. Because each time a different user view the page, this session ID will change, resulting in the Web site changes, so this URL will not appear in the index, but into the queue to be crawled. When crawling to this site, the session is likely to have been terminated. This causes the Web page that the user sees to always fail to enter the index. To display the associated advertisement, delete the session ID.
your Web site uses the robots.txt file to restrict certain access.
If your site uses robots.txt files, the AdSense crawler may not be able to crawl to your Web page. We will not be able to according to the content of your site to the most targeted ads you. If we can't crawl some Web pages or understand the content of a Web page, we might put a public service ad on those pages that won't bring you any revenue.
You can do this by allowing our crawlers to access your Web page without giving permission to any other crawlers. You simply add the following two lines to the beginning of the robots.txt file:
user-agent:mediapartners-google*
Disallow:
After this change, our Googlebot will be able to crawl the content of your site, so that we can provide you with the most targeted Google ads.
For more information about the robots protocol, please visit http://www.robotstxt.org。
we are unable to crawl your Web page.
