SEO experience Sharing: Zac Groping's debate about nofollow

About Nofollow,zac Groping teachers have published their views, they both said a lot of, Zac Teachers think nofollow will waste PR and weight, guoping teachers think nofollow will waste pr.

This is true of their example: suppose you originally had a page PR value of 10 points, this page has 10 links. Nofollow before each link to 1 points of the PR value. If you nofollow off 5 of these links, you think the remaining 5 links per link can be divided into 2 points of the PR value, but in fact, each link can only be divided into 1 points PR value.

Both of them were based on Matt Cutts's English:

"So what happens if you are have a page with" Ten PageRank points "and ten outgoing links, and five of those links are Nofol Lowed? Let's leave aside the decay factor to focus on the core part of the question. Originally, the five links without Nofollow would have flowed two points of PageRank each (in essence, the nofollowed link s didn ' t count toward the denominator when dividing PageRank by the outdegree of the page. More than a year ago, Google changed how the "PageRank flows so" five links without nofollow would flow one point O F PageRank each. "

Original: http://www.mattcutts.com/blog/pagerank-sculpting/

According to Matt Cutts's original reasoning, each nofollow link is a waste of a certain proportion of PR. Suppose your blog has 100 links, 10 links are your site, 90 are you nofollow off the comments, then that is to say you waste 90% of the PR, your every page of PR in the comments after others became the previous 10%. Then the more the blog PR should be less, but in fact not so, There are hundreds of of messages (not spam) blog is generally more than the blog without the message of higher PR; On the other hand, there is no mention of weights here!!!

If "nofollow will waste PR and weight", then all the blog to turn off the comment function is the only option, all the small sites have to cancel nofollow is the only option, large sites if not for the number of the consideration then cancel nofollow is the only option, but, This is clearly not the thing.

Google engineers are not retarded, is Google launched Nofollow is the key to all of the People's blog PR and weight unlimited reduce it?

I think that Matt Cutts did not put this issue completely out, after all, search engines do not want the webmaster to use a variety of skills to achieve the goal of disrupting the rankings. My understanding of Matt Cutts's sentence is:

Suppose there is a page PR has 10 points:

If 10 links from the beginning of the show there are 5 links are nofollow, then each dofollow link to get 2 points PR value;

If 10 links start is dofollow, such as weight, PR after you give 5 add nofollow, then each dofollow link to get 1 points PR value. When after a period of time, DoFollow get the PR value slowly rise to 2 points.

Hope to continue to communicate with guoping teacher, Zac Teacher nofollow views.

Article from: http://www.seoclubs.com/zac-guoping-nofollow.html