.jp domain names have only been offered since May of 2001, but since that date have become the standard for use among online businesses in Japan. Registrations of .jp domain names have skyrocketed, following closely the growing importance of the online economy in Japan.
There are many reasons why the .jp domain name has proven so popular:
It is easily recognized and trusted by the Japanese consumer
It is easy to obtain; there are NO restrictions on registering or using these names
There is NO limit to the number of registrations possible by one entity (companies can now create online identities for all of their products and business units)
With Japan Registry, there is NO need to host on Japanese servers. You can host this domain anywhere in the world, making it easy to approach the Japanese market from overseas