When your site gets swamped by a huge amount of visitors, tools like Varnish can improve scalability for static sites, but when user-specific content is needed, a hit to the backend webserver is still needed, causing scalability issues. We'll look at a new Nginx module which implements a fast and scalable solution to this problem, changing the way developers think about designing sites with user-specific content and changing the way data is (pre)processed for dynamic websites.