Network device, device link system, and device link method

In a device link system for connecting a first device and a second device through a communication interface, the first device comprises a network connection unit that connects the first device to a network; a web server that delivers a web page describing first device information relating to the first device via the network connection unit; an acquisition unit that acquires second device information relating to the second device from the second device via the communication interface; and a web page processor that generates a page describing the second device information acquired by the acquisition unit and adds the generated page to the web page, and the second device comprises a provision unit that provides the second device information to the first device via the communication interface upon receiving a request for the second device information from the first device.