This tool enables investigation of server-side content adaptation methods by allowing the user to request a given URL through a proxy that mimics the HTTP headers sent by multiple different devices, simultaneously.
This service is still in beta testing and may not work well with all sites
Each device is represented in an iframe whose source is the requested URL, but loaded via multiple different proxy servers, each one of which represents a different physical device. Each proxy host uses a different set of HTTP headers that mimic the device in question. Thus, from the server point of view, the requests are coming from multiple different mobile devices and different content may be sent for each.
A side effect of each URL being loaded in an appropriately sized iframe is that responsive web designs that use media queries will function correctly also.
You can deep-link directly to a site to test using the following format: http://prism.mobiforge.com/?url=go.mobi