Okay now we are to the Google PageRank Calculations, this is very simple so pay attention, I learned it over night, not really. The factors about Google PageRank Calculation is that no one knows exactly how it works, but people have discovered over time somewhat how it works, but lets get into an example.
PR(A) = (1-d) + d(PR(t1)/C(t1) + ... + PR(tn)/C(tn))
Above is a Google PageRank algo. that was released in the development of Google algo. Thats right the actualy algo equitation . Which google is not telling us what it does, but that does not matter because the equatation is good enough.
In the equation 't1 - tn' are pages linking to page A, 'C' is the number of outbound links that a page has and 'd' is a damping factor, usually set to 0.85.
A more simpler way to think of it is:
a page's PageRank = 0.15 + 0.85 * (a "share" of the PageRank of every page that links to it)
Share = The linking page's PageRank is divided by the number of outbound links
A page "votes" an amount of PageRank onto each page that it links to. The amount of PageRank that it has to vote with is a little less than its own PageRank value (its own value * 0.85). This value will be shared equally between all pages
Therefore; it would be better to get a page linked to you that has a PageRank of 5 with 2 outbound links then it would be to have a page linked to you with a PageRank of 8 with 500 outbound links, but don't get me wrong. It would be better to have both pages linked to you, but if you was to take your choice, think about it.
Now the Google PageRank algorithm is based between a pr of 1 to 10, but many people believe that numbers are set to a algo logarithmic scale. Which there is a very good reason to believe this, but no one knows for sure outside of google, now there has probably been people that have figured it out somewhat, but to be sure, you would of had to write the Google PageRank algorithm your self.
PageRank 0
Often indicates that the page rank has not yet been assigned, or that the site has no inbound links.
PageRank 1 to 2
Very few inbound links, and those links are from low ranking sites.
PageRank 3
Site has some inbound links, either a large number of low quality links or a few links of good quality. Site will be returned on search results, but will tend to be outranked by other competitive sites.
PageRank 4
Site has many good inbound links. An achievable target for most small clubs and companies.
PageRank 5
Site has many good inbound links. Achievable with work. This is the highest PageRank that most sites can realistically aspire to.
PageRank 6
Very difficult to obtain because of the number and quality of inbound links required.
PageRank 7-10
Extremely difficult to obtain for all but the most popular websites. Often only obtained by websites that have become household names.
The original PageRank formula used and patented by Google was:
PR(A) = (1-d) + d(PR(T1)/C(T1) + ... + PR(Tn)/C(Tn))
where:
PR(A)
is the page rank of the page to be calculated.
T1 ... Tn
The pages which point to page A.
d
A damping factor, which can be set between 0 and 1 (typically 0.85) and which Google may set individually for sites.
C(A)
The number of links out from page A.
Google may have revised this formula since it was first introduced. What the formula shows is that the page rank of a page will be higher the more pages link to it and that links from pages with a higher page rank count for more than links from pages with a lower page rank.
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