'Multivariate Testing' is an advanced method of testing in web analytics where multiple variables of a webpage are tested simultaneously to determine how each element and combination of elements affects user behavior.

This form of testing allows for a more comprehensive understanding of how different elements interact and influence the overall performance of the page. It is particularly useful for optimizing complex web pages with multiple components, such as layouts, images, and text.

By analyzing the results of multivariate tests, businesses can gain insights into the most effective combinations of elements on their web pages, leading to more informed decisions about design and content optimization. Multivariate testing is a valuable technique for fine-tuning websites and maximizing user engagement and conversion rates.