Domain Name Common Sense
Domain names can be divided into different levels, including top-level domain names, second-level domain names, etc.
Top-level domains are divided into two categories: one is national top-level domains (nTLDs), such as cn in China, us in the United States, and jp in Japan;
the other is international top-level domains (iTDs), such as .Com for industrial and commercial enterprises, .net for network providers, .org for non-profit organizations, etc.
In order to strengthen domain name email list management and solve the shortage of domain name resources, on the basis of the original three international gTLDs: (com.net.org), seven new international gTLDs have been added: firm (company), store (sales). Companies or enterprises), Web (units highlighting WWW activities), arts (units highlighting cultural and recreational activities), rec (units highlighting recreational and recreational activities), info (units providing information services), nom (persons).
The second-level domain name refers to the domain name under the top-level domain name. Under the international top-level domain name, it refers to the online name of the domain name registrant, such as ibm, yahoo, microsoft, etc.; under the national top-level domain name, it is a symbol representing the category of registered enterprises , such as com, edu, gov, net, etc.
Popularization of Domestic Domain Name Knowledge