PR Update Strange phenomenon: Open 5 days 0 outside the chain Web site PR sudden rise to 5 is why

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Lantern Festival, Google still adhere to its Chinese characteristics, the traditional festival in China updated Google ranked the cornerstone of the standard PageRank value, this is referred to as PR thing is the Chinese grassroots webmaster Gray often valued a website rating standards, but with Google in China's increasingly depressed, As well as the so-called Baidu weight is increasingly popular, coupled with the PR value has been abolished and then several irregular updates, make everyone of this thing a little lost interest, so the PR update or not so be webmaster friends value. However, in view of the current lack of Baidu official website rating standards, as well as outside the chain market is still to PR as a link pricing of the reality of the site, or a lot of webmaster are concerned about the site PR fluctuation. Familiar with the PR of friends should know that the value is based on the site to address the external link to the page rating of a site, this is why some of the site's PR even higher than the home page, the reason is that the page has a higher weight of the external links, but as to how Google is the site's external links to calculate the PR, argument, this article no longer repeat. PR has a total of 10 ratings from 0 to 10, 0 for the lowest, 10 for the highest, the general use of new domain name to establish a new station, PR is certainly 0, but also some of the new station PR is very high, this is because the domain name before the construction station experience, that is, the site is new but the domain name is old. A website PR can reach about 4, is generally a good station, but can only say that the site for Google may have some good external links, and can not prove the number of visits.

The above introduces some of the situation about PR, mainly want to explain two points, the first new station PR is generally 0; the second PR is determined by the outside of Google, the chain less PR value is small even 0. Well, now back to the title of this article, according to the above introduction, a new just opened 5 days, outside the chain of 0 of the site, PR rose to 5 should be impossible things, but the fact appears. One of my new site's two domain name, the main station of the domain name before PR is 0, the Lantern Festival after the update PR to 2, and just 5 days before the opening of a two-class domain name, Baidu's back chain only less than 10, included or 0, Google also included only hundreds of, Google's outside the chain is 0, but the PR value unexpectedly in the update after the change to 5 , this has to say is a PR update strange phenomenon. In addition to the surprise, it is inevitable to consider the circumstances of this situation.

Guess one: Inherit the superior domain name weight?

Under normal circumstances, a two-level domain name of the site's PR will be subordinate to the main domain name, for example, a main domain name PR for 5, that even if the following two-level domain name PR for just online less than a month's new station, if the main domain name chain to this two-level domain name links, as long as the PR update, That two-level domain name substation PR may rise to 4. The strange phenomenon this time is because the two domain name inherited a high PR of the main domain name? The answer is no, because the above also has introduced, the two-level domain name of the main domain name of PR only 2. Besides, I have a more than the two-level domain name online also early on a two-level domain name site, its inherited main station of the PR is 6, the PR update, the two domain name of the PR is still 0. So, in combination with the above two points, this kind of speculation should be wrong.

Guess two: PR is affected by the content of the website?

Play the station group webmaster Friends should know, some station group software in the introduction of their own performance will refer to the link in the PDF file, the default PR is 4, in order to prove that the station group software in the release and acquisition of the strong outside the chain. Through this, we can easily associate the content of the site to its domain name PR value impact. The PR rose to 5 of this two-class domain name, mainly engaged in the project is an online school, the content of the site to text and teaching video mainly, a variety of pages to add up to an estimated more than 100,000 of the huge, and daily update frequency is very high. is not because of the content of the site caused by the PR of the sudden rise? Google officials do not have such a statement, this author also dare not speculate, so, tentatively this guess is wrong.

Guess three: This two-level domain name site has a strong internal link to guide the main chain?

If there is a lot of internal links to each site, and each page has a link-oriented home page, then the page also has the weight to guide the home page. If Google can retrieve more than enough pages, it would be equivalent to a sufficient number of external links to the two-level domain name. At present, the site is Google included in the page has 500 or so, each page has a guide to the home page is the two-level domain name link, however, these pages are recently included, each page can be assigned to this level two domain name is very limited, absolutely not up to PR5 level, so the guess should have a certain correctness , but not the main cause of the phenomenon.

Guess four: PR abnormal fluctuation?

Google in the PR update, the general given the value is not stable, a part of the site's PR will be adjusted. In view of the PR is updated yesterday, may still be in the wave period, perhaps the two-level domain name of the PR value will also reduce volatility. This speculation is correct, and wait a few days to see whether its PR value changes to know, but I think that this possibility is slim.

Guess five: The two-level domain name has a high weight outside the chain of import?

The article is written here, I suddenly think of a thing, that is, the two-level domain name is not no outside the chain import, in fact, in my PR for 4 of the site, added to the site one-way link, in the two-level domain name inherited the main domain name, also added to the one-way link of the site. In addition, in the domain name inherited by the main domain of the site, there are many articles directed to the two-level domain name, plus the two-level domain name Home page does not have an export link, so the weight of these import links are all added to the level two domain name, so PR rose to 5. Although somewhat high, this may be the main reason.

Combined with the above five guesses, personally, if guessing four of the situation does not exist, then the main reason for the PR jump to 5 should be guessing 5 of the introduction, followed by a guess 3 of the factors described in the impact, and then may also be guessed 2 inside the factors described in a little influence. The above is the entire content of this article, by http://xa.pppppj.cn Webmaster Original, hope to webmaster friends in depth to understand Google PR has helped, reproduced words also please indicate the source, thank you.