7 Criteria for judging links

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1.PR value.

PR value represents the weight of the site, only with the weight of the site exchange links, will enhance their weight. Generally speaking, as long as the other side of the PR value than their own higher can change. But the other side is not a fool, so the general friend chain Exchange is to be equal. If the PR at least 4 is a valuable friend chain, the new station can only rely on money to buy links.

2. Search engine included quantity.

There are three criteria to follow:

First: The collection should not be too small.

Second, the search engine's collection number and the actual content of its website, should not be too big difference.

Third, the other side of the site in Baidu and Google included the best not too big difference, this can refer to its similar sites of different search engines included in the proportion.

3.Alexa rankings.

Alexa rankings represent the amount of traffic on a website. Although many sites are ranked by cheating, which makes the Alexa measurable decline, but we have to be clear, that is: there is a ranking of the site does not necessarily have real traffic, but no ranking of the site must be no traffic. As for the ranking of how high the site exchange is appropriate, there is no clear norms, personally think as long as you and your own site rankings are not very different.

4. The content of both sides of the website is related.

Many webmaster Exchange friends chain does not look at the site content of the relevance, so there may be primary school official website and Gynecological Hospital Exchange friend chain situation. Of course, this may not be too much harm, but everyone knows that in the absence of competition under the premise of both sides of the site content of the higher the relevance of things will become more harmonious.

5. Home snapshot time.

This is mainly for Baidu, the other side of the home snapshot time, preferably within three days. Of course, this is based on the situation of their own web site at least to be quite a prerequisite.

6. Visibility.

For personal webmaster or small team operation of the site, to achieve visibility is difficult. However, the best state is: the other side site has a certain degree of visibility, or in the industry has a certain degree of influence.

7. Update speed.

The content of each other's site is best to update every day, because only the site updated every day, search engines will pay attention to, users will like, links will be valuable.

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