The significance of the construction of the chain
 

EO website optimization of the outer chain to ranking has a very important significance.
Basically has the following significance:
(a) : attract baidu spider spider came to this site to crawl, thus the breadth and depth of the optimization of optimization methods to increase included, external links quality is stronger, the search engine spiders to crawl frequency is bigger, snapshot update and content of the more frequently updated.
(2) : improve your weight, the chain of quality and quantity is higher, be connected web site weight is higher.
(3) : improve the keywords ranking, import link anchor text and correlation become search engine correlation judgment is one of the important factors.