Comparison and selection of directory and subdomain in SEO optimization

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At the beginning of the website construction and the website operation process, adds the rich new content to be faced with the use directory or the sub domain name choice. Common SEO advice is that if you want to open the channel content is not rich, use the form of the directory, if the new open channel content rich, you can use the subdomain.

In the SEO effect point of view, regardless of the link to import the weight of the case, generally the same site within the weight of various pages of the relationship between the size of:

Home > Sub domain name home > Primary Domain name directory > sub domain name > main domain name inside page > domain

The two "directories" in the relationship are sibling directories. There are two main relationships here, one is the weight of the sub domain name is greater than the weight of the main domain name directory; One is the main domain name inside the page is greater than the weight of the page within the child domain. So it is recommended that if your new channel is just a few keyword rankings for the Competition channel Home page, the internal page ranking is not important, then use the form of sub-domain name, of course, the sub domain name also needs to be equipped with some internal pages, preferably not just a single page; If you get a better ranking of new channels, get more long tail browsing, You can use the form of a directory below the top-level domain name.

Using a subdomain will make the home page ranking better, and using a table of contents will make it easier to rank the channel content pages. There used to be a site of a channel to use the form of a subdomain, the sub-domain name is very good home, but the content page ranking is very poor. Later the site to convert the child domain name to the main domain name of the directory, the Channel home page ranking from the first fell to the Baidu search of the second/three pages, but the overall content page ranking has been greatly improved, browsing over 2-3 times. Use the form of a table of contents, you can put this directory home as a Web site to do optimization and link building, but also a comparison to the force.

Again such as the current property sites and business-to-business sites, most of the real estate and enterprise use of the sub domain name, although the following sub-domain name does not have anything, but rely on the congenital weight of the sub domain name only to compete for property name or company name is relatively easy. At this time think about, why the universal Domain name resolution cheating method will always be rampant? Why each search engine is trying to crack down on the ubiquitous domain name resolution cheating website? is because the pan-domain name resolution is too effective, the main domain name is relatively high in the case of a child domain name to rob a single keyword ability will be very strong. On the contrary, almost no "subdirectory home Cheat", which also validates the sub-domain name directory high weight theory.

Use an inappropriate example to compare directories and subdomains:

The site's main domain name is like the emperor, the son domain name is the emperor's brother, the main domain name of the first class directory is the Prince, the prince to respect the emperor, so the emperor will look like a cow, that is, the child domain name will be more powerful than the main domain name directory. But the son of uncle can not be emperor, the emperor's grandson is a hope when the emperor, that is, the inner page of the domain name than the main domain name of the inner page to be less.

In the normal SEO operation, although to consider the effect of SEO, but for the long-term interests of the site to consider, but also strict refusal to cheat. In ⊥ for new content, select Sub domain name or directory form and not just from the point of view of the SEO to make decisions, but also to consider the operation of the site, the site structure, content and new content of the specific situation, and finally decide whether to use the directory or sub domain name.

"Baidu Search engine Optimization Guide" for the site directory and sub-domain selection recommendations are as follows.

1. The content of a channel is not rich enough to be used as a stand-alone site before the use of directory forms, such as accumulation of sufficient content, and then converted to the form of a subdomain.

A Web page can be ranked in front of the search results, "birth" is very important, if from a site with a higher weight of the site, the possibility of a larger row to the front, the contrary is smaller. Usually the primary site is the highest weight, the subweb will inherit from the main site a portion of the weight, the number of inherited depending on the quality of the subweb.

Before it is rich enough to be a stand-alone site, content is placed in the next directory on the main site to get a better performance in search engines.

2. The content difference degree is bigger, the correlation degree is not high content, uses the Sub Station ' point form search engine will identify the site the topic, if the site content correlation degree is not high, may cause the search engine wrong identification. Less relevant content, placed under different subdomains, can help search engines to better understand the theme of the site.

3. The contents of the domain to do a good job, separated from each other, a.laser568.com content, can not be accessed through the b.laser568.com, the contents of the subdomain between each other, may be used as a search engine as a repeat of the content of the processing, the preservation of the URL is not necessarily under the normal domain name.

4. Do not abuse the subdomain, no rich content and misuse of a large number of subdomains, will be the search engine as a cheat and be punished.

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