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As one of the important means of website promotion, the exchange of friendship links is one of the often applicable means, however, in the actual operation, we found that a lot of webmaster Friendship link Exchange Principle some backward, some paranoid. Here is a brief discussion for your reference.
Generally, most of the webmaster in the exchange of links, there will be such a sentence: The PR value >=**, search engine included normal. It can be seen that the PR value is these people exchange links of the main requirements of indicators. In fact, this time, regardless of the current number of Web site PR value of the authenticity of how many, even the real PR, also can not fully represent the quality of the site. At present, in fact, there are a large number of large flow, high weight of the site in Google's PR is not high. Of course, here refers to the weight of the main refers to the weight of Baidu, because the current reality is that more than 90% rely on the search to flow of the webmaster its main source of traffic is Baidu, Google to the flow is often only Baidu 1/n, so, with the PR value as the main reference indicators, in the current market, is clearly outdated. In my opinion, a Baidu included normal, snapshot date new, Baidu keyword ranked high site is I like to exchange links site. Therefore, I 211.html "> feel that judging a station is not worth exchanging links, should mainly consider the following aspects:
1, Baidu included, Google included whether normal.
2, Baidu "included yesterday", "Recent week included", "recently one months" is normal
3, Baidu snapshot history, the latest snapshot date is enough new
4, see the station in Baidu keyword ranking how
5, PR value is high (for Google)
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