How to judge the quality of the outer chain

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Many webmaster in the beginning of the station only know crazy increase outside the chain, but do not know what is high-quality outside the chain. So how do you judge the quality of a link? For the quality of the external links to judge, basically can be based on the following factors:

1. Site dependencies

Website relevance is the search engine used to judge the quality of the site is an important factor, but also the focus of SEO. Therefore, when expanding external links, the first type of link you need to find is the site associated with your own topic.

For example, a friend's station (www.920575.cn) to find the type of link, should be movies, television, drama and entertainment class.

2.SEOSPAM

Very simply, the website can not be cheated or have cheat traces.

3. Export Links

Each other's home page includes the number of export links, the quality of the exported links, the proportion of high and low quality links. If the first page to export a lot of links, quality is not good, as far as possible to avoid exchange links with such sites.

4. Website content Quality

The content quality of the other site, the original content of the majority or collection, reprinted mainly.

5. Website content Update Frequency

Can observe the content of the other site update frequency, keep the regular content update frequency, spiders will visit the site frequently.

6. Website ranking

Random sampling to observe the other site's main keywords, two-level keywords, long tail keywords and other rankings, to understand the weight of the other site

Summary

For the quality of external links to judge, according to the other site of a number of factors to observe, the simple PR value can not represent the quality of the link, need to observe the various factors of the site, the purpose of the exchange link is to improve the weight of the site, enhance the site rankings. With high-quality website Exchange links, can quickly improve the ranking of the site. Perhaps a high-quality Web site links do not have any effect, but if accumulated to 20, 30, 50 high-quality site links, you will find that your site in the search engine performance is very good. Outside the chain is not much, but the essence.