Domain name registration is a crucial step in website construction. Whether it's a personal blog, a corporate website or an e-commerce platform, a domain name is the “identity card” in the Internet world. Before registering a domain name, it is important to understand the concepts and technical knowledge related to domain names in order to build a website. This article will introduce the significance of domain name registration, composition and pan-domain resolution and other related concepts.
1. The significance of the existence of domain names
From a technical point of view, domain name is a way used to solve the problem of mapping addresses on the Internet. Although it was initially just a technical term, with the development of the Internet, domain name has become an important part of the global network culture and is widely used in various fields such as websites, branding and e-commerce.
2. Reasons for registering a domain name
In the age of the Internet, the first step to publish information or set up a website online is to register a domain name. Domain name is the entrance to access the Internet, and having your own domain name is a prerequisite for users to access your website. In addition, the domain name is unique, the sooner you register it, the more you can ensure that you avoid others to seize the domain name of the same name, especially for enterprises or brands, timely registration is crucial.
3. Basic Composition of Domain Name
Top Level Domain: Domain name is divided into several parts from right to left, the rightmost part is called the top level domain (TLD). Common top-level domain names are .com, .net, .org, as well as country or regional suffixes, such as .cn, .us and so on.
Second-level domain name: The portion of the domain name located to the left of the top-level domain name is called the second-level domain name. For example, in CCTV.com, CCTV is the second-level domain name. Second-level domain names are usually used to identify a specific brand or business.
Sub-domain: There can be more sub-domains under the second level domain name, like mail.CCTV.com, where mail is the sub-domain, which is used to specify mail servers or other specific services.
4. What is generic domain name resolution?
Pan-domain resolution means that all sub-domains under a domain name automatically point to the same IP address. For example, if you set up a generic domain name under A.com domain name, *.A.com (e.g. B.A.com) will be resolved to the same IP address as A.com and display the same page. This is useful for websites that require multiple subdomains but have consistent content.
5. Structure of a domain name
A domain name usually consists of multiple parts, with the top level domain on the right part and second level domains, third level domains, etc. on the left. Each section is separated by a dot (.) Separated by a dot (.). When registering a domain name, the composition and selection of the domain name has an important impact on the branding of the website.
6. Domain name rules
Since different organizations manage different levels of domain names, the naming rules of domain names for each level will be different. But broadly speaking, domain name naming follows the following general rules:
Allowed Characters:
Letters (A-Z, case insensitive)
Numbers (0-9)
Hyphens (-)
Domain Name Length Limits:
There is usually a limit on the length of domain name characters, the maximum length of a third-level domain name for CN domain names is 20 characters.
Prohibited names:
Country name: such as “China”, “China”, etc., need to get official approval.
Administrative divisions: e.g. government names above the county level, official approval is required.
Trademark protection: registered enterprise names and trademarks shall not infringe on the rights and interests of others.
Social public interest: the name shall not jeopardize the national and social public interest.
Summarize
Domain name registration is not only the first step in website construction, but also an important means for enterprises and individuals to establish an independent identity in the Internet world. Understanding what constitutes a domain name, naming rules and concepts such as pan-domain resolution is crucial to the successful operation of a website. We hope this article will help you better understand the basics of domain name registration and make the right choice.
Domaincn.com Committed to providing fair and transparent reports. This article aims to provide accurate and timely information, but should not be construed as financial or investment advice. Due to the rapidly changing market conditions, we recommend that you verify the information yourself and consult a professional before making any decisions based on this information.