The Domain Name System is a hierarchical decentralized naming system for computers, services, or other resources connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities.

OSOA offers customized authoritative ( e.g. ) or recursive ( e.g. ) DNS plans in the following locations:

Hong Kong, China

Osaka, Japan

Tokyo, Japan

Los Angeles, United States

London, United Kingdom

PMoscow, Russia

Tallinn, Estonia

Amsterdam, Netherlands