first, if you want to love Shanghai auction, you need very large a sum of money. It is reported that take a keyword to millions of dollars of funds, indeed, for large companies is not what, but for ordinary small and medium-sized enterprises is not a small number, but also need to improve their ranking sites have the economic strength is insufficient. Shanghai Longfeng optimization cost is very low, basically do not need a lot of money, we can gain a good effect.
therefore, under the condition of low cost, low risk, it is very good to optimize. If the other way, the cost is very high, so also cannot obtain huge profits. Before there is a lot of enterprises, through the optimization of Shanghai dragon in such a way as to bring their own to a great deal of interest. For example, the first.