In one aspect of the invention, a method for verifying locations of devices is provided. The method is implemented in a system having at least a client device, a network device and a server (collectively the “endpoints”.) At least a first token, a device listing information and an authorization parameter are transmitted in the system via a browser or any web application, to enable endpoints to verify that the client device has logged in to the server and the client device and the network device are in a same network. In another embodiment, a method for verifying locations of devices implemented on a server is provided. In yet another embodiment, a method for verifying locations of devices implemented on a network device is provided.