Internet Domain Name System Beijing Engineering Research Center LLC (ZDNS for short), founded in 2013. As the core technology owner of the Internet basic resource service, it focuses on the technical research and innovation of the Internet domain name service system and the IP address service system. It has led the development of five RFCs, 20 domestic industry standards, and nearly 100 patents. ZDNS self-developed hardware and software products: DDI (DNS, DHCP, IPAM) for core network equipment provides a one-stop domain name system full link solution. The key technical indicators of the self-developed DNS basic software Maple are world-leading. According to IDC report, ZDNS has occupied the first place in China’s DDI equipment market share for eight consecutive years.