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How many websites can be built in a domain name? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

A domain name can build a website, or it can build countless websites. In general, we only use a domain name to build a website to build the products we want to promote. At the same time, we can also use unlimited secondary domain names and tertiary domain names to build countless websites and build different content.

Domain name level is a standard for URL classification, including top-level domain names, second-level domain names, etc. A complete domain name consists of two or more parts, with an English full stop between them. To separate, the penultimate "." The right part of the top-level domain is called the top-level domain name (TLD, also known as the first-level domain name, which contains a legal string and a domain name suffix), and the left part of the top-level domain string goes to the next "." Until now, it is called the second-level domain name (SLD), and the left part of the second-level domain name is called the third-level domain name, and so on, each level of domain name controls the allocation of its lower-level domain name.

For example, yisu.com is a first-level domain name; www.yisu.com, www.yisu.com and club.yisu.com are second-level domain names; if you add a layer before the second-level domain name, it is a third-level domain name.

When we build a website, we generally use www as the home page of the website to build the most important content. Then put all kinds of branch content under www in column form. That is, under www.yisu.com, https://www.yisu.com/jiaoyi/ represents domain name transaction, https://www.yisu.com/cloudhost/ represents CVM and so on.

If there is an independent content system, we can use a secondary domain name to store it. For example, www.yisu.com is used to build cloud computing industry information; club.yisu.com is used to build a discussion community for rice farmers.

In addition, we can also use these secondary domain names to build completely different content, such as Baidu, www home page is search service, zhidao is to build Q & A knowledge, tieba is to build forum community, baike is to build professional encyclopedia knowledge.

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