Variant Marketing is aimed at companies wishing to optimize their customer acquisition costs on the web. We respond to this need by developing algorithms for extremely fine exploitation of data available on Google (Analytics / AdWords). The principle: measure the performance of multiple traffic sources to guide strategy and investment, in an automated way, to the most profitable sources. Observation: a serious web marketing must be guided by the analysis of the available data, but their quantity and variety make an exhaustive analysis impossible for a human being. Solution: create algorithms capable of doing this tedious and time-consuming work in place of the human. Our offer: a drastic increase in customer acquisition performance via Google. - Cost reduction by optimizing investments. - Performance boost with 24/7 optimizations. - Time saved thanks to automation.