External link construction before PR update

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We all know that PR will soon be updated, dear Webmaster, your friendship links in how to do it?

Webmaster A: In order to update in this PR has a leap, I now in the crazy to do outside the chain, mainly for the exchange of links, as long as the PR high I have to change.

Webmaster B: I bought a few PR high links. Just wait for this PR update.

Webmaster A and B is not advisable, a good site not only to have a good ranking, but also have a relatively high weight. Blindly pursue the site PR value, the ultimate result can only be the site is K, the site lost value. So what should we do at this critical juncture?

Let's look at the formula of PR calculation first.

PR (A) = (d) + D (pr (t1)/C (T1) + ... + PR (TN)/C (TN))

which PR (a) is from an external link site T1, based on the PageRank system to your site to increase the PR score; PR (t1) represents the external link

The PR score of the website itself; C (T1) indicates the number of external links owned by the external linked site. Everyone should remember: A website's voting rights only the site PR

A value of 0.85, and the 0.85 weight is evenly distributed to each of the external sites it links to.

Imagine a page named Http://www.ltnpx.com, which is linked to the PR value of 4, the external link number of 9 of the B page http://www.21345.com.cn, then

The formula is as follows:

PR (AKA) = (1-0.85) + 0.85* (4/10)

PR (AKA) = 0.15 + 0.85* (0.4)

PR (AKA) = 0.15 + 0.34

PR (AKA) = 0.49

Eventually we got a score of 0.49,

You want to link the site if you export too many links, then you will get less points, the role of your site to promote PR will be smaller. So in the PR will be updated, webmaster Friends link must be cautious.

1, links not only to do relevance, but also to see the site's export links.

2, the external link step-by-step.

3, to do high-quality outside the chain.

4. Reasonable website layout.

Finally summary: Do not pay too much attention to the PR value, webmaster should put more energy on the content of the site. I wish you webmaster in this PR update can have a leap.