English SEO: A study of the value distribution of the outside chain

First, here is a map of the distribution of link values:

　　

The above diagram is a straightforward illustration of the respective proportions of the factors that determine the value of the link:

1. The weight of the site: if the above figure several factors determine the proportion of the value of the link, then a site is the weight of the value of the link to determine the size of the weight of the decision is nothing more than everyone familiar with: PR, Station age, included. Note: The weight of the site in Google will have a ranking of the additional rewards, generally +30.

2. Anchor text: The importance of anchor text I believe that SEO personnel know that even if the entire site does not appear in a keyword, can use a large number of anchor text to make its row in the home page, that year's "Google Bombs" event is a good description of the importance of anchor text. 3. Google to the site trust: Pay attention to distinguish between the difference and weight, trust reflected in how many related sites linked to your station, how many highly authoritative sites such as the government, schools and other links to your site, these can greatly increase Google's trust to you. Note: Publishing press release More is a good way to improve trust. (The explanation of trust degree can refer to: http://www.seomoz.org/learn-seo/moztrust)

4. Relevance of Links: better understanding, your site is a medical industry site, put a link on the above point to the hospital must be more relevant than pointing to a school, this everyone's understanding is not much said, if you want to specifically guide the keyword and the relevance of the target site can use this tool: http:// Www.seomoz.org/labs/lda

5. Link in the location of the page: the beginning of Google for a page any location of the links are treated equally, now Google and other search engine algorithms to upgrade to become more intelligent, the link to different locations is not the same, you can refer to the following figure:

　　

As you can see from the diagram, the more "easily seen and clicked by the user" location of the link PR transfer value greater. This tells us, in your hair outside the chain or to do page optimization, as far as possible to put anchor text in front of the article position.

6. Export links to the number of cliché topic, the export link is of course the less the better, at the same time this also shows that the catalog type of the chain value is very low. Summary: Through this analysis, we can do in the mind has a general base, you can estimate the value of the link, the time to use up to do the most valuable things.