8 replies to this topic

[Jill]

The text on the page (whether there is any or none) makes no difference to its PR. If it's linked to from pages that have no PR higher than 5, the page could never be higher than 5 itself, and generally it would be a lower 5, if that.

Jill

[Randy]

I don't have any conclusive proof one way or another Well, but your observations match pretty closely what I've noticed.

I've never had a site that managed to get over PR5 with backlinks only from ODP-related listings. Likely that's because of the number and individual PR of those ODP sites. So that one may be a moving target. Generally though I'd have to agree with you.

As you've noted, Google really seems to like new content. I've never let any of my sites sit there with no updates long enough to see if their rankings go down after a time, so I can't speak to that point. I've gotten myself into the habit of adding or updating at least one or two things on every site each week. Google has apparently recognized my habit, because Googlebot comes back practically daily to all of my sites to see if I've made any changes.

Does that help maintain rankings? No clue. But it's certainly never hurt me.

[Jill]

O.K but what if (in the same case) its get 100 back links from PR5 ...- is it still won't go to 6

From my understanding of how PageRank works, it would be impossible for the page to get anything higher than a PR5 if no page higher than a PR5 linked to it.

Now, my understanding may certainly be incorrect. You might head over to Chris Ridings forum and ask him.

Jill

[powerofeyes]

O.K but what if (in the same case) its get 100 back links from PR5 ...- is it still won't go to 6 ?

Yes it will increase your PageRank to even 7, No of links and the quality of links from where it comes from does count towards the PageRank, For example a PageRank 6 link from yahoo and dmoz directory is valued more than a normal PR6 link from a blog,

PHPBB.com was a PageRank 10 merely by the no of backlinks it had, It didnt have links from pages more than PageRank 8 when you check, but still it had a PageRank of 10 due to the massive No of links it had,

highrankings.com has a pagerank of 7 just by the No. and quality of links pointing to it, Checking the backlinks of highrankings.com I cannot even see a link from a PageRank 7 site but still the homepage is a PageRank 7,

From my understanding of how PageRank works, it would be impossible for the page to get anything higher than a PR5 if no page higher than a PR5 linked to it.

If this is the case highrankings.com should have a PR8 link do you have one Jill, All I can see is PR6 links and didnt find even a single PR7 link,
It is the quality of the inbound links that matters a lot IMO,

[Jill]

Hmm...I'm not sure. I suppose that makes sense though Vijay!

I know I have a link or two from Search Engine Watch, but don't know what the PR is.

[projectphp]

From my understanding of how PageRank works, it would be impossible for the page to get anything higher than a PR5 if no page higher than a PR5 linked to it.

Ok then, how do sites get a better PR then? If you need a higher PR Page to link to you to get that PR, how did the pages with higher PR than you get there in the first place?? Kinda like if nothing sticks to Teflon, how do they get the Teflon to stick to the pan??

Seriously though, PageRank is a measure of importance in which each link is a vote, but not all votes are equal. So, a PR 1 link is not as strong a vote as a PR 10 link, and you may need 1,000,000 PR 1 votes to equal the value of 1 PR 10 vote. But the fact remains there is a point at which enough PR 1 links will be equal to the value of a PR 10 link.

PageRank is a very simple algorithm: Value of PageRank of all links in = PageRank of a page. Repeat until values stop changing. (this is a recursive algo, that is, if the value of my PR changes, after each time it is calculated, so do the PRs of all pages I link to, changing my PR... ad nauseam).

PageRank, quite simply, does not concern itself with any other factor.

Think of it like cooking. An algorithm is like a recipe. It takes ingredients (factors), in varying quantities (weighting of factors) and pops out a cooked meal (SERP). Now, the quality of anyone ingredient is independant of any other, that is the chilli you use is good or bad based upon where it was grown. So, PageRank is calculated independant of any other factor, and only looks at links.

Now, an Algorithm change is like a recipe change. Instead of using sugar, you use Palm Sugar. Instead of Soya Sauce, Kecap Manis. That changes the flavour, and thus the outcome of the meal (SERP). Ditto if you use 10 chillis instead of one.

In the end, questions regarding maximum PageRank acheivable in Scenario X are pretty pointless. The relevant question to ask is how to improve PageRank, and the answer to that is very simple: get links in from other sites. Each and every link in does increase PageRank, the question is simply by how much.

[Grumpus]

I'm going from memory and this is a bit over simplified, but PR is calculated as follows:

YPR = YPR + ((LPPR * 0.8) / NoL))

YPR = Your page rank.
LPPR = Linking Page's PR
0.8 = only 80% of a page's pagerank can get passed onto another page. (This number may be wrong... It's around there, tho.)
NoL = The number of links on the linking page. In other words, the value of the PR that gets passed is divided amongst all the links on the page.

NOTE: The "real PR" is different than the PR you see in the toolbar. PR2 is twice as large as PR1 - PR3 is twice as large as PR2, and so on.

It's still addition, though. If you had enough links from PR1 pages, you could get a PR10. Granted, I'm not sure your computer has enough RAM to calculate how many PR1 links it would take to reach that level...

Again, that formula isn't exactly right, but it's close enough for government work.

G.

<added> I just looked it up to be sure. The 80% in my formula is wrong. If you really want to know the more complex formula, here you go:

The original* PageRank formula: PR(A) = (1-d) + d (PR(T1)/C(T1) + ... + PR(Tn)/C(Tn))

For math wizards:
PR(x) is the PageRank of x, C(x) is the number of outbound links on a page x, d is a damping factor set between 0 and 1 and is controlled by Google.

from WebPro News

</added>