The first-level domain name is also called the top-level domain name, and the two have the same meaning.

Top-level domain name, also known as first-level domain name, common ones include ".com", ".org", ".net", ".cn", etc. "Second-level domain name" is one level added before the first-level domain name.

Domain names above the second-level domain name are collectively referred to as sub-domain names and are not included in the category of "registered domain names". According to ICANN, after one Organizations can apply to register top-level domain names within two years, and individuals can apply to register second-level domain names.

Domain names

should be concise and easy to remember and easy to input: this is the most important factor in judging the quality of a domain name. . A good domain name should be short and easy to remember, and it should be easy to remember at a glance, and should be clear in pronunciation and avoid spelling errors. In addition, homonyms should be avoided when choosing a domain name. p>

Using words or phrases with certain meaning and connotation as domain names is not only easy to remember, but also helps to achieve the company's marketing goals, such as company name, product name, trademark name, brand name, etc. A good choice, so that the company's online marketing goals and non-online marketing goals can be consistent.