You can certainly set up a royalty or commission sales arrangement with anyone wanting to sell your products. It's not clear from your brief description, though, whether using an exact replica website is an absolute condition of selling your product (e.g., is part of the business model the client is buying into) or whether it's just a matter of convenience for the client. That, and other questions, should be reviewed with an attorney specializing in franchise law to see whether you have crossed the line between a license and a franchise. The reason for this is that you cannot legally establish a franchise without it being registered with the state franchising authorities and possibly the Federal Trade Commission. In addition, different states have slightly different criteria for when you cross the line from one to another.