DNS hierarchy

​The DNS data is distributed across many different DNS servers. Each server is responsible for their part of the names.

When a DNS query is made this request is send to a DNS server which is responsible for that name.

At the top of public DNS server structure are top level DNS servers. These servers have information what DNS servers have information about specific zones, such as .com, .net, .org and so on.

These servers also have information which DNS servers have information about a specific domain.

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