add ip
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@ -5,7 +5,7 @@ rfc: https://datatracker.ietf.org/doc/html/rfc1035
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# Domain
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A domain is a human-readable label used to identify a location or an entity on the internet. It serves as a memorable way to reference specific resources, such as websites, servers, or services, rather than relying on numerical IP addresses.
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A domain is a human-readable label used to identify a location or an entity on the internet. It serves as a memorable way to reference specific resources, such as websites, servers, or services, rather than relying on numerical [IP](Internet%20Protocol.md) addresses.
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Domain names are formed by the rules and procedures of the Domain Name System ([DNS](DNS.md)). Any name registered in the [DNS](DNS.md) is a domain name. Domain names are organized in subordinate levels (subdomains) of the [DNS](DNS.md) root domain, which is nameless. The first-level set of domain names are the top-level domains (TLDs), including the generic top-level domains (gTLDs), such as the prominent domains com, info, net, edu, and org, and the country code top-level domains (ccTLDs). Below these top-level domains in the [DNS](DNS.md) hierarchy are the second-level and third-level domain names that are typically open for reservation by end-users who wish to connect local area networks to the Internet, create other publicly accessible Internet resources or run web sites.
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