in modifying a production-level website Long period of time required to achieve statistically reliable data. This situation is due to variations in the amount of traffic that generates the data necessary for a decision. Likely inappropriate for low-traffic, high-importance websites when the site administrators do not want to lose any potential customers Simulation (survey) execution In simulation (survey) MVLPO execution, the foundation consists of advanced market research techniques. In the research phase, the respondents are directed to a survey that presents them with a set of experimentally designed combinations of a landing page. The respondents rate each version based on some factor (e.g., purchase intent). At the end of the research phase, regression analysis models are created either for individual pages or for the entire panel of pages. The outcome relates the presence or absence of page elements on the different landing page executions to the respondents’ ratings. These results can be used to synthesize new landing pages as combinations of the top-scoring elements optimized for subgroups or market segments, with or without interactions. Simulation execution has the following advantages: Faster and easier to prepare and execute in many cases, as compared to live environment execution Applicable to low-traffic websites Capable of producing more robust and rich data because of increased control over the page design Simulation execution has the following disadvantages: Possible bias because of a simulated environment rather than a live environment. Necessity to recruit and optionally incentivize the respondents References Search engine optimization Market research