Case study: nofollow label use how to grasp a "degree"

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It has been almost a year since nofollow tagged into Seoer's field of vision. In this more than a year of time, Seoer to the Nofolow label attitude from distrust to accept, and then gradually pay attention to this label, passed a long time of reflection. The significance of using the nofollow tag is to tell the search engine not to track the link with this label, do not give the crawl the link weight, in order to prevent weight loss. To today many webmasters have also recognized that the nofollow tag in the prevention of weight loss, but also caused by many stationmaster to nofollow label excessive dependence and abuse. As soon as you see the site there is no keyword link directly to your last nofollow tag, is like a lot of webmaster see PR High site to find their own friendship links, regardless of each other's Baidu weight how, snapshot new not new, regardless of 3,721 directly to exchange, but do not know has caused the label of excessive optimization scruples. Nofollow is a very important label, but also because of its importance, it is more reasonable to use it, grasp the optimization of a "degree" to achieve their own optimization purposes. The following is the current SEO optimization of the most successful industry network case analysis, to see these high weight site if you want to grasp the nofollow label a "degree."

1, Million table network (the current weight of the highest Watch mall network) included 46800 PR5 Baidu Weight 6 first page of the chain Total 405 use nofollow link Number 30 use rate 30/405*100%=6% (nofollow label use more reasonable)

2, poly fashion (the current weight of the second watch network, before the first) included 46800 PR5 Baidu Weight 5 first page of the chain Total 223 use Nofollow link number 95 use rate 223/223*100%=42% (nofollow tag usage is too high)

(Note: The following figure is the use of poly Fashion table Industry nofollow label, from the following figure code can be seen, poly fashion table Industry nofollow label widely used in the article link, there is a suspicion of excessive optimization. In this period of time, the weight of poly fashion has declined, I think more or less with the site of the label over the optimization has a relationship.

3, OL jewelry net (at present the weight of the highest jewelry network) included 55600 PR5 Baidu Weight 7 first page of the chain total 240 use Nofollow link number 35 use rate 35/240*100%=14% (nofollow label more reasonable)

4, Doido (now the weight of good jewelry network) included 1500 PR5 Baidu Weight 4 first page of the chain total 207 use Nofollow link number 67 usage 67/207*100%=32% (nofollow tag usage is too high)

Although the overall weight of the site and the operation of the site and optimization strategy has a great relationship, but also by a number of optimization factors. However, from the above data can still be seen, the weight of the site is more or less affected by the use of NOFOLLOWW tags. Here, the author through the data survey that nofollow label must grasp a "degree", the general use of the ratio is best not to exceed the total number of links 20% for the most appropriate.

Case study Source: Swiss watch net http://www.gudoi.com reprint please keep the link.