Forecast PR value based on Alexa reputation value

PR is what: PR value is called PageRank (Web level), September 2001 was granted the United States patent, the patent is one of Google founder Larry Page. Therefore, the page in PageRank does not refer to pages, but to Pec, that is, the hierarchical method is named after Peggy. It is part of Google's ranking algorithm (the ranking formula) and is one of the key criteria that Google uses to measure the quality of a Web site, a way Google uses to identify the level and importance of a Web page. After blending all the other factors, such as the title tag and the keywords logo, Google adjusts the results by PageRank to improve the relevance and quality of the search results by making those more "grade/important" pages more highly ranked in search results.

PR is a Web site ranking evaluation system launched by Google, the value from 0-10. The general Google is based on this: PR0 for the start of the site (that is, just set up the site), PR1 for the Novice station, PR2-PR3 for the rookie station, PR4 for the mature and stable site, PR5-PR6 for the very popular site, PR7-PR9 for extremely very popular site, PR10 site very few, Google set its value to PR10.

The above are all theoretical things, according to the author three years of SEO experience, to draw some conclusions, according to the Alexa reputation value can also predict the value of PR, the higher the Prestige value, PR value is the largest, conversely the smaller.

Evaluation Address: Http://www.alexa.com/siteinfo

The following is the author summed up, for reference only (considering the PR value of the general three month or so update, so the reputation value with the daily growth of the chain and constantly changing), the general Alexa reputation value update to once a week.

Reputation value is less than 50,PR value <2

　　

Reputation value is less than 100,PR value is 3

　　

Reputation value is greater than 100, less than 250,PR value is 4

　　

Reputation value size 250, less than 400,PR value of 5

　　

Of course, this data is not exactly accurate, the key to see the other side of the link to the PR value and the number of export links, to analyze the distribution of the PR value how much.

Summary: Now the webmaster of the size of the PR value is not many years ago so obsessed and charmed, but this does not mean that the PR value is useless, the size of the PR value directly affects the keyword in Google's ranking situation, although Google temporarily withdrew from mainland China, but the security is not allowed that day back? So I think, to improve the PR value, Is still the lesson we need to do.

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