How to choose the Site directory and level two domain name?

Top-ranked, com,.net,.org,.cn, etc. belong to the international top-level domain, according to the current international http://www.aliyun.com/zixun/aggregation/12851.html "> Internet domain Name System, The international top-level domain is divided into two categories: category top-level domain name (GTLD) and geographical top-level domain name (ccTLD) two kinds. Category top-level domain names are "COM", "NET", "ORG", "BIZ", "INFO" and so on the end of the domain name, are responsible for the management of foreign companies. The geographical top-level domain name is the domain name that ends with the country or region code, such as "CN" on behalf of China, "UK" on behalf of the United Kingdom. The geographical top-level domain name is generally managed by each country or region.

The level two domain name is the domain name based on the top-level domain name, the analogy China's level two domain has,. com.cn,.net.cn,.org.cn,.gd.cn and so on. The child domain name is the child domain name of its parent domain name, the analogy parent domain name is abc.com, the child domain name is www.abc.com or *. ABC.com.

Generally speaking, two domain name is a domain name of a record, such as alidiedie.com is a domain name, www.alidiedie.com is one of the more commonly used records, the general default is to use this, but similar *. Alidiedie.com's domain name is all called the alidiedie.com level two domain name.

Many webmaster brothers or enterprises in the Web site, always confused with the two-level domain name and directory selection, do not know which SEO effect is better, in fact, the search engine will be a two-level domain name as a separate site to see, and the directory or belong to the same site of the two-level domain name will be slightly higher than the sub directory, Because the search engine will take this domain name as the homepage of the website, in addition many people have observed that the main domain name will pass a small amount of weight (not PR) to the two domain name, so only from the point of view of the URL, two domain name than the weight of the directory higher, but from the point of view of the search engine rankings, enterprises or webmaster in doing the site , or try to use the form of the table of contents, rather than the level two domain name, I do the site, the use of this strategy, to give up the level two domain name, and the form of the directory.

Why is that?

Two level domain name and the main domain name is two completely different website, if you want to promote is two websites, all network marketing work all needs to do again, the website PR value, domain name Trust degree will be dispersed by these two websites.

The use of level two domains will make the site a lot, and is each site began to become very small, the directory will make a site more and more, in search engine optimization of various technical indicators, the content of the site and the quality and strength of the site itself, the size of the site is one of the most important indicators, the more the site to do the larger, Contains a lot of content naturally, the user's help will be greater, the weight of the domain name will be increased. So the whole site theme is closely related to the premise, should try to use the form of the directory.

Of course, this is only from the point of view of SEO rankings, many times in other considerations, also have to use the two domain name, such as the company's product lines are more, and the difference between the product lines is relatively large, this situation can choose two domain name, but for a small and medium-sized enterprises, Or suggest as much as possible to put all the content in the root directory, to form a large site, so in the SEO optimization, will take up a lot of advantages, the company's business has a big help.

Article from: www.51cixuanji.cn molar knowledge network.