Contribution of links to prvalues

Source: Internet
Author: User

Websites with different PR values contribute different PR values to their links. The more websites with more external links, the less PR values that are delivered to each website, this article lists how many different prvalue external links are required to reach a certain prvalue.

Google's formula for calculating the prvalue is PR (A) = (1-D) + d (Pr (T1)/C (T1) +... + Pr (TN)/C (TN )). If the number of links to study in the UK is 10, and the value of "study in the UK" is 3, the PR score sent to each link is: Pr = (1-0.85) + 0.85 * (3/10) = 0.405.

The following is a prvalue calculation table. From the table, we can see that 0.607 websites with a prvalue of 7 and a number of external links of 50 can bring the prvalue of a website to 5. Only when 16803 websites with a PR value of 1 can bring the PR value of a website to 5.

Prvalue calculation reference table

Prvalue

Start score

End score

Median

PR transfer value

PR5

Pr6

PR7

PR8

1

6

30

18

0.30

16,803

92,414

508,277

2,795,522

2

30

164

97

1.65

3,055

16,803

92,414

508,277

3

166

900

533

9.06

555

3,055

16,803

92,414

4

915

4,948

2,931

49.83

101

555

3,055

16,803

5

5,033

27,213

16,123

274

18.362

101

555

3,055

6

27,681

149,670

88,675

1,507

3.339

18.362

100.992

555.456

7

152,244

823,186

487,715

8,291

0.607

3.339

18.362

100.992

8

837,339

4,527,522

2,682,431

45,601

0.110

0.607

3.339

18.362

9

4,605,367

24,901,372

14,753,369

250,807

0.0201

0.110

0.607

3.339

10

25,329,516

136,957,543

81,143,530

1,379,440

0.0036

0.020

0.110

0.607

Assuming that 85% of the PR score is passed, it is calculated based on the median value.

Assume that the number of external links on the website homepage is 50.

Comments:

this article mainly describes the influence of the increase of external links on Google PageRank. The increase of external links, especially the high-quality external links, is an important means of website ranking. Websites of small and medium enterprises are often ranked by the quality and quantity of external links. Therefore, it is a better way for small and medium enterprises to obtain a good ranking for the increase of high-quality external links.

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