Can the domain name be the same? A domain name is a unique identifier on the Internet that identifies the addresses of e-mail servers, e-mail servers, and other web services. In the development of the Internet, domain names play an extremely important role, and it is one of the key parts of ensuring network communication. The uniqueness of a domain name is one of the basic principles of the Internet.
Each domain name must be unique globally to ensure the reliability and accuracy of network communications. This means that the same second-level domain name or subdomain name cannot exist under the same top-level domain.
For example, in. In the cn top-level domain, two names named westcn. Only one ** or web service can use that particular domain name. This is to avoid confusion and conflicts and ensure the accessibility of web resources. If a domain name is already registered and in use, others will no longer be able to register the same domain name.
However, it is important to note that the same domain name can exist between different domain extensions. For example, westcom and westcn are two different domain names because they use different top-level domains (..)com and. cn）。
In summary, a domain name must be unique within the same TLD, but the same domain name can exist between different TLDs. This principle helps to ensure that domain name resources on the Internet are fairly and rationally distributed, while providing a clear and orderly network structure.