The top-level domains (TLDs) are part of a country-specific such as .De .Fr or .Ch and other so-called generic like .Com or .Org. The two-digit suffix refers to the location of the name management and not on the location of the server hosting the domain. The three-character TLDs referred initially to the ISP, who ran the computer;. Examples are mil for military, gov for government agencies of the United States, edu for universities, net for providers and other Internet providers, org for non-commercial…. respectively .com for commercial organizations.
From a technical point of view there is no difference to the country TLDs. Contracting out some TLDs is still limited, especially .Mil or concerns .Gov. For others, the current specific restrictive procurement practice has been relaxed or eliminated completely. Everyone can now book one .Net, .Org or .Com domain.
Assignment of domains
The award and administration of domains is done by so-called Network Information Center (NIC) that are specifically authorized by the Internet Assigned Numbers Authority (IANA) or the Internet Corporation for Assigned Names and Numbers (ICANN). It also provides the information service “Whois” ready to be checked on whether the user desired domain name is registered at all available or to whom a domain name already. For domain registration, there are several possibilities: for example, directly at the registration organization or through a service provider.
Choice of the domain name
When choosing a domain name, the requirements of the relevant registration office to be considered. Allowed characters for domains are the numbers 0 to 9, the hyphen, the Latin letters A to Z and other characters from the currently valid Appendix to the domain policy. One-and two-digit and pure numeric domains can be registered. Another rule is that a domain can not begin or end with a hyphen yet.
In addition, please note that names, parts of a name or spelling that are offensive, defamatory or discriminatory or are generally perceived as offensive may be rejected at registration also. The applicant stated to the respective NIC also that he does not violate any rights and / or name or trademark of a third party or used. Therefore, no generic terms are used which are not occupied exclusively by the applicant or not be represented by him – such as cities or regions.