Thursday, 18 August 2011

How To Easily Find the Best Adsense Format For Your WebSite

Which adsense format is the best for my website ? Which color scheme should i use to get maximum CTR for adsense ads? Does the 336×280 ad format or the 330×250 rectangle ad format works the best? What can i do to get maximum Click Thru Ratio for my adsense ads?
Google Adsense Simultaneously How To Easily Find the Best Adsense Format For Your WebSiteThese are the questions that runs through every webmasters mind when they are concerned about the money from adsense. Most of the new adsense publishers finds it difficult at the initial stage selecting the best adsense format that works for their website. Professional adsense publishers or webmasters advice to keep on experimenting with different adsense formats in your website. But, this takes a lot of time and effort. So, how about testing different adsense formats in your website at the same location simultaneously but randomly? Yes that’s what the professionals do. It seems quite logical too. If you didn’t get the point correctly, then take a look at this example.

You feel that a 728×90 adsense ad format will generate more revenue than a 468×60 banner ad unit you are currently using. So to find it you need to test the leaderboard 728 x 90 adsense format separately. But this can’t be the case some times using the 728 x 90 ad format can affect your earnings badly. But there is a way to display the two ad units, showing each 50% of the time. This is made possible by using a simple javascript.  The random function in javascript will help you to easily alternate between your two ad formats. The method is being called A/B testing.
from the adsense blog
Keep in mind that generally, modifying your ad code is against AdSense program policies. However, we’ve checked with our policy folks and they’ve given our publishers permission to modify the code for use with this specific script for the purposes of A/B testing. Please be aware that the AdSense team isn’t able to provide any support or troubleshooting help for this script or this sort of testing.
So lets start.

Testing Different Adsense Ad Formats at Same Location by Displaying Them Randomly

  • Create Two Custom Adsense Channels. Name them accordingly as per your needs. In this case its 728 x 90 and 468 x 60 but you can use any other formats too like 336 x 280 and 300 x 250 and so on.
  • Now you need to setup the ad formats similarly. What i meant is, when the final code is obtained only google_ad_channel, google_ad_width, google_ad_height and google_ad_format should only be the variables. Every thing else like Title, Color, Font etc should be same, now that would be more logical to test between the two formats simultaneously. However, its not mandatory that you should only use similar looks for the two formats.
  • Now we are going to play with the java script code. Here we are mixing up the to different adsense codes so that each of them will be displayed 50% of the time. And it total both counts to 100% in overall. Here is a code shown as example.
      <script type="text/javascript">
       var google_ads = Math.random();
          if (google_ads < .5){
            google_ad_channel = "468x60Channel";google_ad_width = 468;
            google_ad_height = 60;google_ad_format = "468x60_as";
          } else {
            google_ad_channel = "728x90Channel";google_ad_width = 728;
            google_ad_height = 90;google_ad_format = "728x90_as";
            google_ad_client = "pub-xxx";google_ad_type = "text_image";
            google_color_border = "FFFFFF";google_color_bg = "FFFFFF";
            google_color_link = "0000FF";google_color_text = "000000";
            google_color_url = "0000FF";
      <script type="text/javascript"
  • Check out the performance of the two ad formats for a week or two to determine which of the adsense format gives you the best CTR, eCPM. Some times the 336 x 250 ad unit give you more clicks than the 300 x 280. It depends.
The next time after this experiment you can try two formats with a different color format, different font (change fonts in adsense ads), font size etc.

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