Domain Name Glossary Terms
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Root Server

A machine that has the software and data needed to locate name servers that contain authoritative data for the top level domains (e.g., root, servers know which name servers contain authoritative data for .com, .net, .fr, .uk. etc.). The root servers are, in fact, name server, and contain authoritative data for the very top of the Domain Name System (DNS) hierarchy. Currently, technical specifications limit the number of root servers to 13. These machines are located around the globe, in the U.S., the U.K., Sweden, and Japan.

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