The complete edition of SEO Technology Tutorial Fifth Chapter key: Link strategy

Links are the soul of the site. Users through the hyperlink to get rich content of the site, search engine spiders are also along the page of a website link layer tracking in-depth, complete the Web site information crawl. For search engines, especially Google, the key to determining the ranking of a site is how many high quality links outside it point to the site. This is an external link or reverse link, also known as an import link (Inbound links or backlinks). The export links from the site to other sites and the links between pages within the site also have a greater or lesser impact on rankings.
　
Search Engine Classification directory
Search engine Directory (directory) is the search engine's artificial classification directory. Today, the login classification directory is the site after the completion of a very basic, important work, especially to log in several major categories, the importance is not whether visitors through the directory links to find your site, but mainly through these directories your site has been important, high-quality external links, This is important for your site to improve rankings.
　

At present, for the Chinese site, the most important categories are the following: Open Directory Odp,yahoo! , the portal Search engine directory Sohu, NetEase, Sina. Can be divided into free login and pay for the two cases of login. Either for free or for a fee, you must enter the login manually.
　

Free Login:
The most famous and important login is the world's largest open directory Project:www.dmoz.org. The objective of the ODP is to build the most comprehensive and authoritative catalogue on the Internet, and to build a resource pool that is considered to be of high quality by the public. Under this objective, the global volunteer editors choose a website with high quality content to be approved for entry into the classification catalogue.
　

As Google and other important search engines are using the ODP database, is Google's monthly depth index base, so submit to the ODP of the Web site to become the first job after the completion of each website. Login ODP directory is free, but to accept a more rigorous manual audit and longer waiting, and the last possible site login is not successful, but also experience the process of repeated submission.
　

Because the DMOZ directory in the ranking of the role of the site, making more and more mixed with the site to DMOZ submitted or illegal submission, and volunteered to join the artificial editorial team in the phenomenon of abuse of personal gain and quality is not high, many factors make it now landing DMOZ very difficult, no one site can guarantee to be DMOZ included. Therefore, the only way to ensure a successful login is to be careful to fully comply with the DMOZ login terms. Here are the submission considerations that must be followed: