The Generic Top Level Domain (gTLD) is a category of Top Level Domains (TLD) that are assigned by the Internet Corporation for Assigned Names and Numbers (ICANN). Generic top level domains are divided into general and sponsored top level domains.
The generic TLDs are also called unsponsored TLDs, Unsponsored Top Level Domain (uTLD), which are the normal generic TLDs like *.arpa, *.org for non-commercial organizations and associations or *.info for information providers.Sponsored Top Level Domain (sTLD), have included *.gov for U.S. government agencies, *.pro for special professional groups, *.edu for educational institutions, *.aero for the air transportation industry, and several others. Sponsored TLDs can now also be applied for from ICANN by companies or by global organizations. Thus, future sponsored sTLDs could be issued to Nokia or Deutsche Bank as *.nokia or *.db. However, ICANN charges relatively high application fees and annual administration fees for this.