Monday, February 11, 2008

What Are Top-Level Domain Names?

Top-level sphere name calling or TLDs are the suffixes of Internet domain names. They dwell of the letters, which are after the last stud of a name. For instance, with the sphere name www.EzineArticles.com, the TLD is "com".

Basically, top-level domains are of three types. The first are the state codification top-level domain name calling or ccTLDs. These are used by dependent districts or countries. They are usually made up of two letters such as as .uk for the United Kingdom or .us for The United States.

The adjacent type would be the generic top-level domains or gTLDs. These are used by a specific social class or a specific organization. They are usually made up of three or more than letters. A batch of gTLDs are available worldwide, however the .mil for military and the .gov for governmental could only be used by the several authorities. These gTLDs are also classified to sTLDs or sponsored top-level domains like .coop and .aero; and uTLDs or unsponsored top-level domain name calling like .info and .pro.

The 3rd type would be the substructure top-level domains or iTLDs.

There are also some TLDs that are no longer used are considered historical. One of which is .nato. This TLD was created by the NIC or National Information Science Center in the late 1980s to be used by North Atlantic Ocean Treaty Organization or the North Atlantic Treaty Organization, as they did not experience that were any existent TLDs at that clip that was able to demo their international organisation status. After it was, however, the TLD .int was created by NIC, which could specifically be used by international organizations. North Atlantic Treaty Organization was then convinced to utilize nato.int arsenic their TLD. The .nato TLD was eventually deleted in July 1996.

Some other TLDs which are no longer used are .zr for Zaire, .cz for Czechoslovakia and .oz for Australia.

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