Google has offered a number of ways to test the success of web page variations in the past. A-B testing allows you to set up two versions of the same page that will be randomly shown to your visitors, you can then track the conversions i.e. sales / enquires to see which page performed the best therefore allowing you to make an informed decision about the way your page should be laid out and the content you should include.
Content experiments allows you to test up to 10 different variations of a web page that will each have its own unique URL. All of these pages must be on the same domain but will have different page titles. Once you have set up this testing you can compare how each page preformed based on a sample of visitors, define what percentage of visitors are used in the experiment and get email updates regarding the performance of the tests.