The Registries just charge the domain name registrars for registration. And along with such responsibility, the domain name registrars as well update the domain name at the corresponding Registry whenever a contact or DNS change is created. In case if there are requests for domain names, such groups then communicate with the respective Registry to make certain whether the requested domain name is available for purchase or already owned by another party. Well, it is also typical that the web site designers or an internet service provider owns a domain name. Generally, a person who owns domain names or the initial owner who is technically called the "licensee" of a domain name is the person or entity that is listed as the domain name registrant. com is the most common top level domain that is used today, for it stands for commercial domains. Of course there are other types and each has its own uses and functions. Moreover, when you go for a domain name registration, you should know that the domain name that is entered into the domain name registration contact information is added to a database of all the available domain names. Aside from that, it is also interesting to know that speaking of the domain name IP addresses; others noted that the domain name IP addresses are like the reference numbers that are applied to categorize the books in a library. As the library codes apply for you to know the title of a book to find in the library, the domain name IP addresses also function somewhat that way. They usually do the domain name renewal every ten years until one hundred years run out. In taking into the domain name renewal, it is a common observation that a domain name registrant add whatever amount of time he or she select on the remaining time on his or her domain name registration. One of the examples that show this kind of situation involved in the domain name renewal is this one: if you have eleven months remaining on your domain name registration and then you decided to keep your domain name for a very long period of time, it is fact that you can perform a domain name renewal for nine years, but the maximum number of years is ten. Therefore in changing registered Domain Name Server information, the domain name will resolve with the average of 50 percent of the period to the primary name server and also 50 percent of the period to the secondary name server. There are further resources which state that if ever that you have an Internet Protocol address of your hosting server, it is better that in changing your registered domain name, you use the URL-forwarding service which is now offered by most domain name companies.