levo - 6:44 pm on May 23, 2013 (gmt 0)
Going forward, we will permit publishers to make modifications to the AdSense ad code so long as those modifications do not artificially inflate ad performance or harm advertisers and otherwise comply with our Terms and Conditions and program policies. This will enable you to try a range of techniques on your site such as:
Responsive design: Enabling publishers to create a single webpage that will adapt to the device on which it’s being viewed, whether it’s a laptop, smartphone or tablet, to maximize user experience.
A/B testing: Running a test by creating multiple versions of a page, comparing user behavior to see which page is the most effective.
Setting custom channels dynamically: Tracking performance of segments of users, sections of your site, or other behavior to maximize ad and user experience.
Ad tag minification: Enabling your site pages to load faster by reducing the amount of data to be transferred.