Who needs it?
Any one who wants to improve conversion rate????

Google's Website Optimizer allows you to design tests to compare variables to see which ones work best. Often called A/B split tests, these simply compare a change or two to see which performs best. For example, you might have a picture of your product on test site A and a photo of the product in use by a human on test site B. Simply by comparing visitors' reactions to pages A and B, you can make refinements to your site.

You want your ads to be successful. To measure that success, you use click and conversion tracking to gain insight into user behavior on your pages. If users are reaching your pages, but you aren't getting the conversion results you want, what do you do? It's time to make improvements to your site. Website Optimizer can help. Website Optimizer allows you to test changes in the website content of your pages in order to determine what will be most effective in getting conversions. You choose what parts of a page you'd like to test -- headline, image, promo text – and we'll run an experiment on a portion of your site traffic to determine which content on your site users respond to best. When we've collected enough data, we'll provide you with reliable reports and a suggested course of action in order to optimize your site for maximum business results.

Before performing an experiment, take some time to consider which aspects of your page you'd like to test and how; the more thought you put into the experiment, the more valuable results you'll get out of it. The Quick Start Guide will give you a good idea of what steps you'll need to take to prepare for your experiment. To run the experiment, you'll also need the assistance of your webmaster or site administrator, who will implement the experiment code on your site that will enable Website Optimizer to vary your traffic to the different versions of your page. You or your webmaster might find it helpful to review our Technical Overview as well.

For a full walk-through of the benefits and use of Website Optimizer, view Google’s Demo

Quick start guide