Hey everyone, I recently came upon a guide that shows you how many links you need from a specific PR in order to get a specific PR on your site. I did some more searching and research and this seems to be at least somewhat accurate, but it is of course not going to be completely accurate, no one knows how google actually operates and decides PR. Only use this as a general guide and don't come in here saying things like "how do you know" "can you prove it" etc. because I don't know for sure and I can't prove it. This is just to the best of my knowledge and research. Use it as a general guide and enjoy! PR Links For PR3 PR4 PR5 PR6 PR7 PR8 1 555 3,000 17,000 93,000 508,000 2,800,000 2 101 555 3,000 17,000 93,000 508,000 3 19 101 555 3,000 17,000 93,000 4 4 19 101 555 3,000 17,000 5 1 4 19 101 555 3,000 6 1 4 19 101 555 7 1 4 19 101 8 1 4 19 9 1 4 10 1 PR Links For PR9 PR10 1 15,400,000 84,700,000 2 2,800,000 15,400,000 3 508,000 2,800,000 4 93,000 508,000 5 17,000 93,000 6 3,000 17,000 7 555 3,000 8 101 555 9 19 101 10 4 19
oops, it got all bunched up after I posted it, but basically 19 links from a certain PR will get you an equal PR, 4 links will get you a PR of 1 less, and 1 link will get you a PR of 2 less. So, 19 links from a PR8 will get you a PR8, 4 links will get you a PR7, and 1 link will get you a PR6. Or so the chart indicates, it remains to be seen what you will actually get, but this is hopefully pretty accurate.
Googles pagerank algorithm changes all the time. In my opinion this is too general as some sites will give more "link juice" than others.
The precise numbers, of course, are unknowable to other than Google staff. But I think that your chart (and others I've seen like it) gives a general sense of how the PR calculation may work.
people are always trying with this, but nice try anyway google is the one to decide who gets what PR at the end, i have never found it to be the same every time
I agree, it isn't actually the way it is, no one knows but google. and you're right .essence. some links, like .edu are worth more, but it's meant as a general guide only, and from what i can tell is at least somewhat accurate, so far it's the best guide i've seen to explain pr link impact.
You also have to consider how many other links are on the page and if there are rel="nofollow" tags on the links or other means to prevent link drain.
I've been building sites for about 8 years and from what I've seen with my own sites, those figures sound very accurate. I have noticed that a link from a pr6 will give a new site a pr4 in the next update. I also noticed that a whole bunch (like 100) of links from pr0 pages will give you a pr1. Because each page even though it says is pr0 has a tiny little bit of link juice that it passes like PR0.0015. So every page has a little bit of PR right from the beginning. This is kinda why Big sites have high PR because they have so many pages all linking to their home pages. Not to mension all the links pointing to those internal pages pushing even more PR to the home page.
Honestly, it is said that .edu's give more power but I seriously doubt it. It's just one of those things that's always posted on forums and everyone jumps on the knowledge train.
I believe that unrelated links that point to your site do not matter at all. If that was the case, Yahoo would have been banned a long time ago because every subject in the world links to yahoo. I believe it is just anchor text that google counts. Not related links. Related links are only important to the page that is linking to your page. The anchor text in the links that point to your page actually helps the page that is linking to your page rank higher for their page for the keywords in your anchor text. Google did this to confuse webmasters a little bit to basically counteract buying links. Then there is a sandbox period that new links go through for about 3 months before they actually pass page rank. Google did this to combat buying links. Then there is also I believe a link growth algorythm that measures how fast you acquire new links. If you start out real fast and get alot of links and then quit for a while, I think sites are penalized which could be the -49 and -99 penalties people have been complaining about lately. Google knows that links grow slowly when you do it naturally. So penalizing for doing it too fast helps control spammers from ranking too high too fast. I got more you can read on my blog here http://www.hpdesktopcomputers.com/p/p2.html I know what I know because I build alot of sites and test alot of things to figure out what google is doing. Scott
.edu, .gov and .mil links don't necessarily pass more authority. It's a myth Matt Cutts: "Typically, our policy is: a link is a link, is a link; wherever that link's worth is, that is the worth that we give it. Some people ask about links from DMOZ, links from .edu or links from .gov, and they say: "Isn't there some sort of boost? Isn't a link better if it comes from a .edu?" The short answer is: no, it is not. It is just .edu links tend to have higher PageRank, because more people link to .edu's or .gov's." http://www.stephanspencer.com/search-engines/matt-cutts-interview