What is the difference between a second level domain name and a second level directory, and what are

To put it simply, the second-level domain name can be said to be independent, which has an advantage in optimizing keyword rankings, and the second-level directory belongs to the main one, and the increase in content inclusion is not as good as the second-level in terms of weight.

Differences and advantages and disadvantages between second-level domain names and second-level directories:2.In the form of a secondary directory, it will inherit the weight of the first page and increase the number of ** included.

The second-level domain name is something like this: "This is a second-level domain name. The secondary directory is "like this."

Just like insulators and non-insulators, they are not absolute, and in some stations, the second-level domain name is higher than the second-level directory, and in some stations, the second-level directory is higher than the second-level domain name. Let's briefly analyze the situation of second-level domain names and second-level directories.

Analyze the weight: Many friends know that the second-level domain name is actually a small station separated from the main site, and the small station will take the weight of the main site. If there are too many second-level domains and there is not enough manpower and time to take care of them, it is easy to create a balance of weights.

Size imbalance: If a large number of second-level domain names are used as column pages, it is easy to lead to a lack of content on the main site, problems in quantity and quality, and the main site has no content, and the weight will be relatively low. When search engines crawl to second-level domains, they treat it as a small site.

In other words, it is to divide a large station into several small stations. The lack of concentration of power leads to an imbalance between the weight of the main station and the sub-station.

Advantages of second-level domain names:

1.Second-level domain names are domain-level paths that have a higher weight than directories, making it easier to rank.

2.Second-level domain names are good for later maintenance and upgrades, and if one of the classified pages has high traffic, it can be transferred to a separate server, while the directory is not.

3.A large number of second-level domain names form a sub-domain name station group, and the mode of traveling sub-stations surrounding the main site is very helpful for the ranking of the main domain name.

4.Easy access to high-quality backlinks.

Disadvantages of second-level domain names:

1.The workload increases, and the content increases. Content updates are inconvenient.

2.It is easy to cause imbalance in the content of the main site.

Advantages of Categories:

1.All the content is under the main site, and the quantity and quality of the content directly affect the ranking of the website.

2.The content is easy to update, and a background is sufficient.

Cons of Categories:

1.It's hard for categories to rank well.

Precautions for choosing second-level domain names:

Portals, information stations, news stations** :(suitable).

This kind of station is very informative, with a lot of information ** and breadth.

2.SME Station: (Not suitable).

With less content, using a categorized catalog, can help you rank higher.

Comparison of advantages of other paths:

When we carry out domain name resolution and construction, we often have three concepts: first-level domain name, second-level domain name, and second-level directory, so what is the difference between first-level domain name, second-level domain name and second-level directory?

1. The number of levels of domain names is to see how many are behind the domain name"."A delimited suffix.

For example: "fuyeor com" has a to:"."The delimited suffix is a first-level domain name. where com is the top-level domain, or root domain name, domain extension.

The second-level domain name is the domain name that is hosted below the main domain name, which is the domain one level to the left of the naked domain nameName. Generally speaking, a second-level domain name is a format like 3 Ws (www).

For example: "www fuyeor com" has two toes"."The delimited suffix is a second-level domain name.

The secondary directory is the subdirectory, inherited in the main directory, is equivalent to the root directory of the establishment of a folder storage.

For example: "www fuyeor com zh-cn" means that there is a folder of "zh-cn" under the root directory of **, which is a secondary directory.

From the perspective of optimization, usually the weight of the main domain name is the highest, the second-level domain name is second, and the second-level directory is lower than the second-level domain name.

The first-level domain name starts with www, and the rest is the second-level domain name, and the second-level directory: ** This is the second-level directory name.