Over 2 1/2 years ago, I wrote about how ad rotation works in AdWords. Since then, a whole lot has changed. Most recently, weave simplified the options for ad rotation. Letas take a closer look at how ad rotation works now and what that means for ad testing.
How AdWords picks which ads to show
The goal of ad-serving in AdWords is to deliver a tailored message that gratifies a searcher’s needs. This means delivering ads that people want to click on and getting better outcomes for your business.
In the new world of ad rotation, things are pretty straightforward. You have two options 😛 TAGEND Optimize: Prefer best-performing ads. Do not optimize: Rotate ads indefinitely.