I have to develop a "private" auction site based on data already stored in Force.com platform.
Develop a site with Authenticated Website User Type is a viable way? I'm worried about perfomance and governor limits of sites like bandwidth and Request Time... I mean that type of site is surely "stressed" by users (multiple requests and so on...)
What is the alternative? Maybe Heroku hosted site with some sort of sync between force.com (backend already developed) and an external db? (I think this solution is more complicated)