External chain quality
 

Although the number of chain of seo optimization website usually less than the chain of seo optimization site's ranking may be better, but in reality situation it is a high quality external chain is more than dozens of weight low website external chain, is equivalent to in the campaign process, a manager said you like ten several ordinary employees in front President said hello more weight, so seo optimization website out chain construction need to find those high weight on the chain operation, to make your website to obtain the true quality of ascension.