PageRank Sculpting

PageRank Sculpting是一种对内页Link Juice操控的SEO技巧,通过对Page Rank流向的操控,来得到最大SEO效果。

Page Rank Sculpting一直是专家级别的SEOer们所采用的站内SEO手法。但是,Matt Cutt在SMX会议上说了这么一段话

“ So today at SMX Advanced, sculpting was being discussed, and then Matt Cutts dropped a bomb shell that it no longer works to help flow more PageRank to the unblocked pages. Again — and being really simplistic here — if you have $10 in authority to spend on those ten links, and you block 5 of them, the other 5 aren’t going to get $2 each. They’re still getting $1. It’s just that the other $5 you thought you were saving is now going to waste.”

就像下面图的意思,如果把一个页面的PageRank比喻成一桶水,把导出链接比喻成水管。 如果有3根水管往外输水,那么如果你将其中的1根水管扎起来,就只有2根水管往外输水,那么理论上讲,每个水管的输水量也将提升。在SEO中,SEO专家们使用nofollow标签来告诉Google哪些链接是不计算Page Rank的,那么平摊Page Rank的链接数量减少了,每个链接所导出的Page Rank也就增加了,这就是PageRank Sculpting。原本一个水管被封了,另外两个水管可以享受更多的水源(各为1/2),但是如果一旦改变nofollow属性后,就算那个水管被封,原来节省的那1/3水源不会被转给他其他水管里。。因此那1/3的水就白白浪费掉了。
pagerank sculpting

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