Analysis of the weight relationship between two-level domain name and principal domain name in search engine optimization

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Many sites will be open for a variety of reasons two domain names, some of the content of the station, a number of regional stations, and some are in the form of a level two domain name completely open up a new site with no relationship to the main domain name content. In this case, it is necessary to consider these two domain name and the main domain name in search engine optimization between the positive and negative weight is how to pass, because only to understand this problem, to better use the search engine, so that the site's main domain name and level two domain names are in a good optimization situation, get a better ranking. Before the specific content is carried out, two concepts should be clearly stated. One is the concept of the main domain name, a two-level domain name concept, it is generally believed that the domain name with www as the beginning of the main domain name, the other form of prefix to the beginning of the domain name is a level two domain name. Of course, this argument is not able to scrutinize, because in fact for search engines, the two-level domain name and the relationship between the main domain should be relative, but that is too complicated to say, that this article on the normal "generally think" as the beginning of the introduction of the following content. This article will be divided into two parts to introduce SEO main domain name to the two-level domain name to bring the positive and negative weight impact, and two-level domain name to the main domain name to bring positive and negative weight impact.

In the first part, first of all, to see the weight of the main domain name, the impact of the two-level domain name. A first-level domain name high weight of the site, in it opened a new two-level domain name Web site, in fact, and a new site is almost the same, that is, this two-level domain name is in fact unable to inherit the weight of its main domain name, a pioneering level two domain name, regardless of its primary domain name weight how high, Want to use the high weight of the main domain name quickly get a good ranking naturally is not realistic. Of course, some people may refute me, because the reality is that the high weight of the main domain name of the two domain name generally also has a good search engine rankings. Here I want to say is: this phenomenon is not because such a class two domain name inherited its main domain name weight, but the main domain name in its own page to the two-level domain name made a link. Then look at the main domain name penalty, the impact of the two-level domain name. When a site's main domain name because of cheating, unfortunately, whether the primary domain name or two-level domain name, the general situation will not be spared the implicated in, this actually needless to say more, there are many webmaster friends have experienced. But this is not absolute, because sometimes the two-level domain name weight will be higher than the main domain name, it's strong impact resistance, and some level two domain name has its own completely independent IP address, in these cases, two-level domain name may also survive the difficult.

In the second part, first of all look at the two-level domain name when the weight is high, to the main domain name and Other level two domain name impact. Two-level domain name when the weight is high, under normal circumstances for its main domain name is also no substantive help, because in fact, the so-called main domain name can also be regarded as the WWW prefix of the level two domain name. In many SEO tutorials, the primary domain name that begins with WWW is assumed to be higher than the so-called two-level domain name that begins with the other prefix. But many facts prove that this argument is untenable. It is an example of how many national sites have a better ranking than other local sites. When the weight of a two-level domain name is high, it is an independent web site, for the two-level domain name of the subordinate directory, must be able to pass the weight. But for other level two domain names, also include the domain name that starts with WWW, there is no weight transmission. Then look at the level two domain name penalty, to the main domain name and Other level two domain name impact. The fact that the point is very simple, that is, the two domain name is a completely independent individual, it because of cheating or other reasons by the search engine punishment, for the main domain name and Other level two domain name is no impact, at least not to bring joint punishment, of course, If the main domain name has a large number of links to the penalty of the two-level domain name or other two-level domain name and the two-level domain name has countless links, it may inevitably be punished.

Above is the individual to two domain name and the main domain name of the weight relationship analysis, purely personal opinion, if there is a poor place, also hope to forgive. http://xa.pppppj.cn original works, reproduced please specify the source!