If the suffix is cn, it means that this website belongs to China, and cn is the abbreviation of China.
Com is the abbreviation of company, which stands for commercial organization.
Gov stands for government departments.
Net is the abbreviation of network, which stands for the main network support center and provides network services.
Education is the abbreviation of education, which stands for education department.
Org is the abbreviation of organization, which stands for social organizations, mostly non-profit.