We all know the external links to the importance of rankings, but also recommended not to ignore the role of the link station. In most cases of external links is not good control, but also after a very long period of accumulation, the internal link is completely under the control of their own. Optimization stations listed below are several links experience. (1) create a site map Whenever possible, the best to the site to build a complete site map sitemap. While the site map link on the home page, so search engines can easily find and crawl all the pages. Many CMS systems do not automatically generate site map, may need to add some plug-ins. For large sites, the site map can be divided into several files, each file should not put too many pages. (2) Each page maximum value from the home page file name 3 For a small web sites, to ensure that starting from the home page, click within the four would meet any one page. Of course, if in three clicks of the better, twice is better. Site map with the use of it should not be a big problem. We can calculate, click on at least four times a few million pages, so the general site should be able to apply. (3) Try to use text navigation Site is best to use text link navigation system. Some sites like to use images or JS drop-down menus, but the best is SEO text links, so that search engines can crawl smoothly, but also through the link text to understand the specific content of these columns page. If you had to use pictures for aesthetic or JS, or at least the bottom of the site map on the website should have all the sections of the text links. (4) Text Link Keywords Site Navigation link text should accurately describe the contents of the column, and naturally there will be in the link text in keywords, but do not spelled keywords here. Mentioned in the article text in the page or content pages, they can naturally use keywords to link to other pages. The key words in the reverse link is also an important factor in ranking, in their own station has full control of their own. (5) The whole station transmission and mobile PR As long as the overall structure of a good web site, the site of the PR transfer should be very homogeneous, Home highest part of the page, content page again. But sometimes you can link to the page of the importance of PR and transmission of a page or a few pages of the PR value and importance of the increased focus of these pages is to push your web page. (6) pages link to each other Said before the site tree structure, but note that this tree does not mean that the article under the heading of each page there is no link between, on the contrary, it should be in a different part of the web page links to other relevant sections of the page . The whole structure looks more like a spider's web site, both the composition of the main vein from the column, there are appropriate links between pages. Good link quality is particularly important.