400
Hundreds of companies have recently spent a nice chunk of change for these newly offered website domains.
What is generic top-level domain (gTLD). Right now, there are 22 generic top-level domains (gTLDs), many of which are specialized (i.e. .aero for the air-travel industry, .gov for U.S. government sites, .edu for educational institutions), and many more country specific TLDs that are governed by ICANN (The Internet Corporation for Assigned Names and Numbers).