Issue #1: Placing Adsense in a ‘Page Not Found’ Web Page
You are likely to get this error when you’re in the process of building your site, deleting pages and moving others around while Google Adsense is running. This common issue happens when the crawlers attempted to crawl certain pages in your site and failed to do so. This is often the case in pages that may have been previously deleted or moved somewhere in your website. Another way for this error to occur is when you are using a temporary URL.Solution:
The great thing about Google is that it has a multitude of helpful tools for Adsense publishers. One of them is the Webmaster URL parameter tool which you can find here. This tool helps you find that problematic pages as well as suggests you on how to fix the errors.Issue #2: Your Code is Being Used in Another Site
This error happens when someone else is using your ad code in a different website without your permission. And since the use of Adsense in the website in question is not authorized, you also won’t get earnings from it.Solution:
To fix this, go to your Settings page under Accounts and Authorization and set your account to “Only allow certain sites to display ads for my account”. Make sure the sites you authorized are the ones you actually want Adsense to run on. After doing this, changes can roll out within 2 days.Issue #3: Placing Adsense Within Login-Protected Pages
If you’re running a membership site and decided to use Adsense within the member’s only platform, get this: Adsense crawlers are not likely to work properly in web pages that are login-protected.Solution:
Google has come up with a pretty smart way to get around this issue. You can fix this by creating a login especially for the Adsense bot to use so it can work inside your login-protected web pages, index your content and display relevant ads.Basically, you just configure the log-in details within your Adsense account. In your “Account Settings” page, browse down to the “Access and authorization” and click on “edit logins” beside it. Here, you can create a specific account which the Googlebot can use for crawling your login-protected pages. Make sure it is working properly by testing it after setup.
You can find the exact instructions from Google here.
Issue #4: The Adsense Bots are Blocked by Robot.txt
Also known as the “gatekeeper” on your site, the Robot.txt file grants and denies access for certain bots and crawlers. And as with other crawlers, the Adsense bots need to get past this before they can do their job of crawling within your site. An error happens when the Robot.txt file denies access to the Adsense bots, making them unable to crawl into your site and display ads.Solution:
First, you need to make sure your robots.txt file is correctly set up. Open this file in your website and allow the Adsense crawler to work by adding the following code:
So here’s how it should look like when you add the code in the robots.txt file in your site’s editor:
Issue #5: Your Adsense Code is Not Properly Implemented
This is a common problem among a lot of Adsense publishers especially those who are new to Html. Whether your Adsense code is not used in its entirety or there are extra Html tags within it, these blunders can stop Adsense from working.Solution:
There’s no universal way to fix this as it depends on which web editor you are using.For more accurate troubleshooting, visit the Code Implementation Guide by Google. You’ll find a step by step troubleshooting guide, which will help you add the Adsense code on your website, properly.
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