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The impact of the link is very important, the strength of the chain determines the site is crawling the frequency is very deep. In addition, each linked environment (in the position of the page, anchor text, surrounding text, etc.) in determining the relevance is also considered, if the link made is determined as a spam link will destroy the site's SEO.
Other factors that affect link value
1. Anchor text-The impact of anchor text can be large.
2. Relevance, external chain sources of relevance, if not relevant, does not conform to the search engine link construction technology strategy.
3. Authority degree.
4. Trust degree.
5. Third party links, the station group has no SEO value.
6. The same domain name does not have the link.
7. Diversification of sources.
8. Link time factor (when the link appears, when the link disappears, how long the link exists).
9. Context/relevance, how do you identify relevance?
1 nearby links, your link around whether there are links to such as, Viagra, betting and other bad sites.
2 The location of the page, whether there is a pile of spam links appear
3 near the text, whether there is a topic keyword
4 the nearest block, is there any related
5 The context of the page, whether relevant, if there is, may be a positive signal
6 The overall content of the website, whether it is related to the theme of your website
10. Source top-level domain name, such as. edugov.cn
Determine the value of a link
1. To provide links to the site's homepage PR
2. The authority of the website
3. Link the PR of the page
4. The authority of the link page
5. Link page export number of links pr=n/r (a page passed the PR value N, the number of links exported is R)
6. Link pages and Web site dependencies.
Link psychology-Why is it created
1. Link is paid
2. Links only give limited value (because it is a transaction)
3. What you offer attracts publishers
4. Business cooperation
5. Link bait can be: Pictures, articles, videos, tools, games, etc.
6. Content synchronization, create a content placed on other sites, each other to give you a link
7. Manually establish links, such as: forum, blog and so on.
Complete link Strategy
1. Active implementation
2. Periodic policy review
3. Do not stop
Issues to be aware of when publishing links
1. The relevance of the external chain source, if not relevant, does not conform to the search engine link construction technology strategy
2. Try not to publish your own website already have articles
How search engines judge spam links
1. Mark as advertisement, sponsor, Partner
2. Whole Station Link
3. Purchase link
4. Whether the chain is related
5. Link quality Around
6. Link Location
Summary: External links are the main determinants of ranking, so it is important to do the outside links. Good link building comes from simple concepts: building good content, telling others, and motivating them to share.
This article from SEO Help Help blog, original address: http://www.v302.net/seozw/9.html