You can try many components in a page with Multivariate Tests. For example, if you have two titles, two texts and two images for a promotion, you will have 8 combinations in total. You can find out which combination gives the best results by applying the Multivariate Test. Multivariate Tests require more traffic than A/B tests for the test to be accurate enough as the number of combinations is high.
Certain topics you can subject to the test are:
Testing New Functionalities
While performing these tests, you can use various conversion goals offered by the Google Website Optimizer for measurement. We can list them briefly as follows:
Time on Site
It is also possible to use the Multivariate Tests seamlessly on websites where the pages are created instantly.