For much emphasis, there are actually so many types of domain name extensions today and due to the emergence of those domain names and alternatives, the picture became more and more complicated. To mention but a few, one of those types of domain name extensions is the Big 3 that is composed of .com, . This is so called as domain name IP address for the reason that this is the numeric address of any domain on the internet. As it is commonly noted, domain name IP addresses are much similar with telephone numbers. I am sure that you know that there is a common name listed in the phonebook that is associated with a long string of numerals pertaining to a specific telephone. Most of the domain name holders sell a domain name after finding that it has no use for them, or perhaps when the third party shows some interest in buying it. Given such fact, it is then a nice move if you have certain desire to sell a domain name that prior to getting down to the hard work that is necessary to sell a domain name, you know how to place some sorts of value on your domain name. biz and others and then click the search button. It is important to learn that if the domain name is in the whois database, the search results will show the contact information of the domain name holder so you will know who owns domain names. The information that will help you to determine who owns domain names include the name of the registrant, the administrative contact, billing contact, technical contact, record expiration date, and record creation date. With their domain name lookup service, they will automatically track the appropriate "whois" database server for a certain domain name, and then questions that database for details about that certain domain name. Also, they return all the available data after such process of locating the domain names. Such group then coordinates the distribution and mapping with each of the registry. Secondly, the ICANN is responsible of accrediting the domain name registrars. Generally, the ICANN has particular criteria for the domain name registrars' accreditation. It is commonly noted that once the domain name registrars are accredited, it is then a duty of the domain name registrars to sign a contract and agree to bear by the ICANN's guidelines and procedures.