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Nofollow浪費權重和PR?看Matt Cutts怎麼講!

Nofollow浪費權重和PR?看Matt Cutts怎麼講!

Nofollow浪費權重和PR?看Matt Cutts怎麼講!
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目前有一些人認為nofollow會浪費權重和PR值,根據的都是Matt Cutts的一篇文章:PageRank sculpting,裏邊最核心的是下邊的這句話:2 T9 o$ V3 W+ C1 f3 o

& L5 _: j( {* @4 l  “So what happens when you have a page with "ten PageRank points” and ten outgoing links,and five of those links are nofollowed? 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 links 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 that the five links without nofollow would flow one point of PageRank each.”
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3 I# @% t1 s: Z! C" y  原文翻譯:
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  如果你有一個頁面PR值有10點,這個頁面中有10個鏈結,有5個是導出鏈結,那麼會發生什麼呢?讓我們撇開衰減因數(見備註),把重點放在問題的核心部分。以前,沒有nofollow的5個鏈結每個會得到2點PR值,nofollow之前每個鏈結分到1點的PR值(其實,在分配鏈出頁PR值的時候nofollow的鏈結數沒有計入分母)。一年多以前,穀歌改變了PR的流動方式,沒有nofollow的5個鏈結每個只得到1點。


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