Namecoin, or NMC, is called the domain name currency. Namecoin is a distributed domain name system based on bitcoin technology that has security and uncensored features. The concept of Namecoin is similar to bitcoin, which is based on bitcoin code, but Namecoin USES a new blockchain (OuKuai Lian), independent of the blockchain of bitcoin. The cost of registering a Namecoin domain name is made up of two parts: network fees and fees. These costs through Nameconin (NC) to pay, first registered cost 50 NC, network fee will be reduced twice every two months, this means that the network fee will be less than 1 NC slowly, in a year have started to pay the high cost of network is in order to improve the early registration bar, in order to ensure that later still have plenty of domain names, but as time goes on, a few years later will be of no. This network fee will not flow into anyone's hands because it will be destroyed during the transaction. And handling fee will be paid to the miners, dig the starting stage, how much to pay fee is up to you to decide, can be 0.01 NC or even for free, but the pay is higher, the speed of your transactions are corresponding to ascend, and COINS as you need to obtain Namecoin by mining, in addition to this you can ask others to, for example, and the other to exchange the currency and Namecoin. About every three months you need to upgrade your domain name, but the process is free. Account in the upgrade way is through your domain name binding by Namecoin as input, produce trade to upgrade, the account is endowed with special NC 0.01, this particular currency will not be traded, which ensures that your account will not be reset.