And speaking of the generic domain names to which the dot edu belongs, it is considered that as many of the domain name extensions have been approved today, many companies have gone on to create successful brands based on a generic domain name, and these domain names tend to be very important. Furthermore, the dot edu domain name is such of great importance for identifying the educational institution since many of the people today are looking for some resources or information about certain educational institutions or degree granting universities maybe for some purposes. For further information, such mentioned domain name extensions are called as the "Big 3" for the reason that they accessible to anyone, without limitations, and now widely recognized in all parts of the globe. In terms of the a country by country basis since most countries now have a matching top level domain name, under which domain names are sold, the most common domain name extensions are based on two characters ISO country codes. These mentioned domain name extensions belong on the international front and these domain name extensions are the common in such field. In terms of a country by country basis, the common domain name extensions are based on the two-character ISO country codes and this is for the main reason that many countries offered these kinds of domain name extensions. Domain Name IP Address When we talk about domain name, we are basically referring to an address of a web site that is primarily intended for an easy and quick identification. Speaking of these user-friendly addresses for web sites, these help connect both computers and people on the internet. Given such fact, it is interesting to know that the domain name is understood as string of letters or numbers that is used to describe an IP address. Finally, after the domain name redemption period of the expired domain name, there comes a final period known as the "domain name deletion period". So five days after the end of the redemption period for the expired domain name, the domain name will be totally deleted from the registry and will then be made available by anyone who wishes to register for a domain name. According to some experts, when you register a domain name, you really need to specify your Domain Name Server or DNS information. However, there are some instances that you need to change such registered DNS information for certain purposes. Speaking of those purposes, one is noted that if you have a new web site or even an email account, your web hosting or the Internet Service Provider will ask you to change your registered Domain Name Server information in order to make your registered domain name to be connected to your web site and so your email account can be setup.