PR(A) = (1-d)+ d(PR(t1)/C(t1)+ ... + PR(tn)/C(tn))

if www.a.com have pagerank 4 and 1 backlink:
PR(A) = (1-0.85) + 0.85*(4/1)
=0.15+0.85*4
=0.15+3.40
=3.55
your site gets 3.55 from a.com


if www.a.com have pagerank 4 and 2 backlinks
PR(A) = (1-0.85)+ 0.85*(4/2)
=0.15+0.85*2
=0.15+1.70
=1.85
if your site gets 10 pr=0 sites' backlinks:
PR(A) = (1-0.85) + 0.85*(0/N) + 0.85*(0/N) + ... + 0.85*(0/N)
=0.15+0
=0.15
your site gets 0.15 from the 10 sites.

I hope this is helpful to newbies, just like to me

This is actually quite handy. What do you mean by the 10 sites on the second example, isn't it just one site?

Originally Posted by Micallef

This is actually quite handy. What do you mean by the 10 sites on the second example, isn't it just one site?

no its 10 diffrent sites, u can find if you get 100 pr0 sites' backlinks your get 0.15 still.
so, pr0 backlinks is useless for your improving pr.

im pretty sure it gets much more confusing than this, how would you get your hands on something so important to google

Actually it's 10 different *pages* since each page has its own PR.

But yeah this calculator is awesome.

Basically leave your link on a page with only a few outgoing links and you'll be fine

Originally Posted by FleshJoe

Actually it's 10 different *pages* since each page has its own PR.

But yeah this calculator is awesome.

Basically leave your link on a page with only a few outgoing links and you'll be fine

thats sure, thanks i will edit it

Originally Posted by mark9510

im pretty sure it gets much more confusing than this, how would you get your hands on something so important to google

It 's public on their patent.

I'm somewhat confused as to the importance of this for improving your websites rankings in the SERPs. PR doesn't seem to be that important anymore, unless you want to make a domain look good before you sell it. Am I missing something?

Link juice is what you get from backlinks. More link juice with target anchor text you have, the better your SERP position for that target anchor text. Page Rank is a general approximation of the amount and quality of link juice flowing to your site. It's just a number which in infrequently updated.

interesting resource

off to work on it!

Here's the calculations, greatly simplified by me based on what I understand.

Just replace the green information with your numbers.

PR/Linkjuice for Your Site = (1-0.85) + 0.85*(PR of target page/number of outbound links)

Example:
Target page: PR7
Outbound links: 20(including mine)

PR = (1-0.85) + [0.85 x (7/20)]
PR to my site = 0.4475

All credits goes to OP for posting the original version.

How can we know if this formula is right anyway...

@OP: Where did you find all these things?

can you get a PR 0 site to PR 4 site with just 10 backlinks?

oh! i never thought abut this. thanks

no its 10 diffrent sites, u can find if you get 100 pr0 sites' backlinks your get 0.15 still.
so, pr0 backlinks is useless for your improving pr.

but isn't it still important for link diversity purposes?

Where did you find this info ?
Can you post source link ?

Lol, once i open this thread automatically i was scratching my head.. Did any1 got your next PR answer, lol

having a calculation for pr may mean that he has cracked g00gle. did you?

well it hold it on their patent . Read http://en.wikipedia.org/wiki/PageRank and check external links , which leads to patents

yes, the formula for determining PR is in wikipedia. I've seen it before but didn't take it seriously..not until I read this thread

So in Short, you could actually calculate the PR of your actual site by applying this formula to every sites linking to you...

i don't think it is thats easy. That information is quite outdated actually and google always updates its algorithm

I haven't done it actually but I will experiment on it. I will look for 10 high PR websites and put my links on them. I'll update you about my progress soon

Thanks a lot man. Really informative. I think that perfectly explains a PR2 for my new site.

how many links have you got pointing to your new website?

Hi,

... very infomative - i just read the patent (http://patft.uspto.gov/netacgi/nph-P...S=PN/7,269,587) myself and i must say its very interesting.

Although i think the actual PR is still different. As the patent says itself: (The following quote comes from the patent mentioned above):

... . A simpler approach is to weight links from pages contained on the same web server less than links from other servers. Also, in addition to servers, internet domains and any general measure of the distance between links could be used to determine such a weighting.

Additional modifications can further improve the performance of this method. Rank can be increased for documents whose backlinks are maintained by different institutions and authors in various geographic locations. Or it can be increased if links come from unusually important web locations such as the root page of a domain.

Links can also be weighted by their relative importance within a document. For example, highly visible links that are near the top of a document can be given more weight. Also, links that are in large fonts or emphasized in other ways can be given more weight. In this way, the model better approximates human usage and authors' intentions. In many cases it is appropriate to assign higher value to links coming from pages that have been modified recently since such information is less likely to be obsolete. ...

So they give themself a lot of room to calculate a lot of algorithmes (additionally) that make the thing very intransparent again.

However the basic formula is very interesting. Thx. :-)

Question: What about PR Bleeding? Any comments on that?

Cheers
Catman

Perhaps you can write a script or a piece of software?

Reason: why would angela's site hxxp://angelasdisc0untmarket.com/ would have a page rank of only 3??? (It has hundreds of High PR backlinksss)

Maybe the sites it has links to has also other outbound links which saturates the PR given to angela's site.

I think the goal here is to find high PR websites with few or no outbound links at all then put you links there, which I think is easier said than done...

Originally Posted by crack_dhat

Maybe the sites it has links to has also other outbound links which saturates the PR given to angela's site.

I think the goal here is to find high PR websites with few or no outbound links at all then put you links there, which I think is easier said than done...

You got it right , you will get more link weight if there is less outbound links on the page . Also relevancy and sites authority is the key.

Originally Posted by crack_dhat

but isn't it still important for link diversity purposes?

i think you are right. these links can be used for link diversity. dint think of it in your angle. great work!