Split testing ad copy or A/B testing compares the effectiveness of two different ad variations. Your first ad or the one that you find the most appealing will not necessarily be the one that will attract most of your visitors. Luckily, you get instant feedback on AdWords, where people vote through clicks and conversions to help you choose messaging that works best for you.
Brainstorm ad text elements you'd like to test, such as:
Different landing pages: If you are not sure what landing page would work better for a certain group of keywords, you can run two identical ads that are taking visitors to a different destination URL. Metrics such as conversion data can help you determine which landing page generates a better ROI.
Calls-to-action: Test different phrases that entice users to take your desired action after the click. For example, you can test
Register NowagainstSign-Up For Free.Headlines: You can try static headlines against dynamic keyword insertion...