It’s essential to track your Adsense performance if you want to find out which ad type or color scheme works best for your site. Inside Adsense posts how you can do it without violating AdSense program policies.

With this technique, you will be able to spread the impressions of 2 different formats equally and find out which one performs the best and gives you the best CTR. The days of testing each ad format individually over a period of days or weeks are now solved with this simple javascript below.

Please note that modifying Adsense code is against the Adsense program policies. However, this their policy team had given permission to publishers to use this specific script for only the sole purpose of testing ad performance.

First, you’ll need to create two custom channels, one for each ad unit you’re going to be testing. Then, create a leaderboard ad unit and a banner ad unit with identical settings, except for the ad format. Be sure to assign each ad unit the appropriate channel created above.

You can decide how you want to run your A/B test; for example, you can choose to run the test on only 5% of your traffic or only on your home page. No matter what you choose, you’ll need to run both of your ad units at the same time. But how can you easily alternate between your two ad formats? The simplest way to do this is to use the JavaScript template below - it will rotate between the two ad units, showing each 50% of the time.

When using this template, remember to replace “//your first ad unit goes here” with your ad code inside the first set of tags.

Tags : Adsense, tracking, ads, channels