Since the third week of February 2011, I feel that the Google AdSense program changed a little. My AdSense earnings are down more than 50%. So I decided to review what ads are showing on my blog from different countries. Anyway this is not a complaining article, but I want to share how to remove MFA (Made for AdSense) advertisers from your blog with the Google AdSense preview tool.
The Google AdSense preview tool only works with Internet Explorer. All you have to do is download it and install it (see the download link at the end of this article). The Google AdSense preview tool is only a registry file (so it only works for Windows OS). And you can use it from Internet Explorer.
As soon as you download the registry file and install it, open your page in Internet Explorer. The Google AdSense preview tool is available in the context menu or right-click menu.
See the screenshot below:

Now you will see a Google AdSense preview tool popup, with ad examples in it. You can select a country to view ads from different locations. See the screenshot below:

When you select inappropriate websites, you can get their URL. Now block those unwanted ads so they won’t show up on your website anymore. To block them, open your Google AdSense account, choose the “Allow & block ads” tab, then in “Blocking Options” choose “Advertiser URLs”. And click the “Block new URLs” button; a new box will pop up like the screenshot below:

Now put the unwanted URLs in the box, then click “Block sites”. You won’t see that advertiser shown on your website anymore.
Download Google AdSense preview tool
