Increase AdSense Earnings using the Competitive Ad Filter
Google AdSense gives you the option to block competitors ads on your Blog using their Competitive Ad Filter, part of Google AdSense. Google allows you to enter upto 200URLs in here. If you don’t publish ads through Google Adwords, you might be under the impression that hey, I don’t need to use this filter. But you are definitely missing out on additional revenue. Have you ever checked your Google AdSense account and see ad impressions that resulted in a revenue of 1 cent to you? I certainly have. What happens is that you end up losing a valuable visitor to your blog for 1 cent and that too , the ad they click on isn’t of much use because they most likely just clicked on a Made For AdSense (MFA) site ad.
What is a Made for AdSense site?
Have you ever been to a site where there is absolutely no content and all you see are ads, Google AdSense Ads, Yahoo ads, ads ads and more ads. These sites contribute a lot to the internet junkyard and provide no value except to get web visitors to click on advertisements. These MFA sites offer a low CPC rate which takes brings them traffic at a very lost cost. Then these sites make money off the visitor to your blog by serving ads with a higher return.
Implementing the Competitive Ad Filter in your Google AdSense Account
You can prevent these MFA sites from serving ads on your blog or website by using Competitive Ad Filter in your Google AdSense account. When you block these sites, you end up with higher paying ads on your blog.
To get the URL of the site you wish to block, you can use the Google AdSense Preview tool. The Google AdSense Preview Tool is a better option as it prevents you from accidentally clicking on the ads. You can use a different method to find the URL of Flash based ads as the AdSense Preview tool does not work for such ads.
Another excellent site is Ads Black List. This site will generate a list of sites which you can use to filter. However this is a paid service. My firm is responsible for managing many sites.
Here is a list of 200 URLs which I have refined over time and which you can copy and paste into your competitive ad filter.
List of MFA sites for your Competitive Ad Filter
Once you implement the competitive ad filter, you might see a report in your webmaster tools from Google saying that if you remove the filters, you may monetize your site more. You can safely ignore this report

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June 19th, 2007 at 1:23 pm
This is exactly what I expected to find out after reading the title Increase AdSense Earnings using the Competitive Ad Filter. Thanks for informative article
July 16th, 2008 at 6:06 am
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August 18th, 2008 at 11:38 am
Great info & a definate “must do” for anyone utilizing adsense to monetize their site(s) and/or blog(s).. With adsense (google) moving to end the MFA/arbitrage craze by suspending accts. you would think the # of sites would decrease drastically, but overall I saw a small decline but now it seems to be pretty steady still with an enormous number of sites