This document discusses how multivariate testing (MVT) was used by Orange, an online telecommunications company, to improve the performance of their website. MVT analyzes thousands of variations of web page elements like images, text, layouts, and calls to action to determine which combination performs best. For Orange, testing different creative elements on their shopping page led to a 75% increase in click-through rates. On other pages, testing things like animated images versus static images increased conversion rates by up to 10%. The document advocates that MVT allows companies to continuously improve their online operations and revenue by getting direct feedback from customers on what content and designs they engage with most.