The site is very clean and lean, personally as anon technical person I would not know why I should use this Site.
My suggestion would be to provide:
Information about the nature of the analysis: What exactly will be the output and how will the output help me. Describe how your analysis will help me build a better site.
Include examples of how to use this information, the analysis output seems very bland --> include ranking criteria of how important the information is for which needs and tips on how to improve certain factors
User Reviews are a great way to capture the interest of potential users: show some on the frontpage