Relay device and computer-readable medium

A non-transitory computer-readable medium having stored thereon a program that causes a relay device that is provided on a first network hierarchy level and relays communications performed, via a network hierarchy level higher than the first network hierarchy level, between a plurality of nodes that are subordinate to the relay device and a sales broker website to function as:

• an application storage unit that stores a sales broker application;
• and
• an application execution unit that executes the sales broker application to cause the relay device to function as:
• an order data reception unit that receives order data that includes a plurality of contents and is transmitted by an orderer node that orders a product, among the plurality of nodes;
• a first order data transmission unit that transmits the order data to the sales broker website;
• and
• a second order data transmission unit that transmits, when an order receiver node that receives an order for the product is any of the plurality of nodes, at least a part of the plurality of contents to the order receiver node without involving a network hierarchy level higher than the first network hierarchy level.