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home have noticed the first two days toolbar (sidebar) PR has been updated. Matt Cutts sent a post to answer questions about PR and PR updates.
asked: I am very curious how the PR value is stored inside? Is it a decimal, like people guess, or an integer?
: It's more accurate to think of it as a decimal. Of course, our internal PR calculation is much longer than the 0-10 shown by toolbar.
asked: Do I need to know this? I know what PR can tell me, why should I care? That is to say to the ordinary website, PR has what purpose?
: I think it's a very healthy attitude. If you don't care about PR, and your website is running well, that's good.
: Will those data centers with older infrastructure be updated, or is my PR different for the next few months?
: the latter. I think most data centers use the new infrastructure, such as the Info:related:link: Directives and PR, and I believe all the data centers that use the new infrastructure have already exported the new PR value. Other older data centers may take a couple of months to turn into a new infrastructure in some way.
asked: A lot of people ask PR is not from date x to date y? And the reverse link is date z?
: I wouldn't worry about that. I'm not really sure myself. At a certain point in time we reduced the internal PR value to 0-10 and then output so that we could see it on the toolbar. If you're upset about what the reverse link is, then you may have a reverse link obsession. You should stop and do something else until your back-link obsession gets better. I suggest keyword analysis, study log files, find out what should be added, think more about the link bait, make your site more attractive, and study how to improve conversion rates and so on.
Q: Google can only output a few months ago the PR value, is very troublesome.
A: I have said that PR is continuous calculation, we have the machine input to the PR algorithm, calculate the PR results. So at any point in time, a URL in Google's system has the latest PR value, we occasionally have the internal PR value output to toolbar, let everyone see.
asked: I wonder why you don't bother to tell us about the new PR update? Is this the first time you've done this?
answer: Good question. I am not quite sure whether I am the official spokesperson for the PR output. It's not a big deal at Google. Frankly I do not know this PR update, I saw other people on the internet to talk about, and then went to check to see if it is true. In the past few months, it has been noted that sometimes Google's engineers choose a less common data center and do experiments such as backlinks and info: queries. So I think I should tell you, this is a true PR output, not an engineer in the experiment.
: Does PR update affect search results? Will we see a change in search results next?
answer: Good question. These values have been considered in the ranking algorithm when you see the new PR in toolbar. So you might be happy to look at the new PR value, but it's not the reason for the change in the ranking results. So you will not see because the PR update results in the changes in the rankings, the results of these rankings have been from the last PR update began to calculate.
