A TLD (top-level domain), also referred to as a domain extension, is simply the letters that appear at the end of a domain name. For example, in the domain name “www.IBScc.net” .net would be the TLD.
In Namibia is the TLD “NA”.
All of us are familiar with .com, and most internet savvy individuals are aware of its intended uses, being that it is an abbreviation for commercial. However, there are many other types of TLDs assigned by the IANA (Internet Assigned Numbers Authority) that are commonly used, and many many people are not familiar with their meaning or their usage.
That list contains more than 400 TLD and we can assist you if you want to choose one. But we recommend try to find a name within the popular TLD like .com, .net, .info, .biz or one with your country code.