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InsideGoogle
Monday, November 15, 2004
 
How Many Links Does It Take To Get To The Center Of A PageRank Pop?
Olivier Duffez of PR Weaver conducted a study over the last seven months, figuring out roughly how many backlinks are needed to achieve specific PageRanks. Obviously this is imperfect, because backlinks are also rated by quality, but its still the best such study I've seen. Olivier is advertising his company's software, but the fact that they are conducting studies like this definitely says some good things about the company. Here are the figures for the last two months:

PageRank

Backlinks 9/04

Backlinks 10/04

0

83

80

1

11

11

2

24

24

3

12

17

4

60

75

5

220

288

6

1,307

1,508

7

16,545

20,954

8

32,357

30,658

9

75,305

73,693

10

1,334,000

1,334,000


Just note the fact that PR10 sites are very 1334.

Comments:
I suppose this is simply about the quantity of links shown in Google (a link:www.example.com query). Then it would be correct, at least judging from my own site (PR6 with 2,130 backlinks shown). Anything else would be truly irrelevant, as I can put online 10,000 links to my site within minutes, but they will be worthless because they are from just half a dozen domains. I wonder though what happens if one gets 10 links from 10 different PR10 site? Would one jump to a PR9 or PR8 without any other links? Of course, it would be totally impossible to get so many PR10 links for an obscure site (unless you hack all of them).
 
To mvaneerde: I did say "Obviously this is imperfect, because backlinks are also rated by quality", didn't I? :-)

Phillip: I guess you could find a way to convince a bunch of those sites to do it, perhaps through kidnapping, or offers of exorbitant amounts of chocolate. But seriously, how many PR10 sites are there, or at least how many that are not owned by Google?
 
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