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This article shows you the difference between the first-level domain name and the second-level domain name, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

About the first-level domain name

A first-level domain name is a domain name body composed of letters or Chinese characters, pinyin, numbers, hyphens, etc., plus a domain name suffix. Domain names in the form of yisu.com are first-level domain names. West is the domain name body and .cn is the domain name suffix. West263.com, baidu.com and so on are also first-level domain names.

About second-level domain name

To put it simply, the second-level domain name is to add another level before the first-level domain name. For example, for the first-level domain name, yisu.com,www.yisu.com is the second-level domain name, and club.yisu.com is also the second-level domain name. It's just that people are used to using the secondary domain name prefixed with www as the main domain name entry of the website, which is more convenient for everyone to remember.

The difference between first-level domain name and second-level domain name

Registration price: you need to pay to register a first-level domain name, while a second-level domain name is extended based on a first-level domain name. Usually, many service providers support free resolution of second-level domain names.

Utilization rate: the utilization rate of second-level domain name is higher than that of first-level domain name, and it has its own collection, snapshot, PR value, anti-chain and so on.

Existence: the second-level domain name is attached to the first-level domain name, and if the top-level domain name disappears, the second-level domain name will not exist. The secondary domain name will not be done, and the main domain name website will not be affected.

Included: the search engine's inclusion of the first-level domain name is much better than the second-level domain name, and the PR value and weight of the second-level domain name is lower than that of the first-level domain name. When the primary domain name is punished, the secondary domain name will also be punished.

What is the difference between the first-level domain name and the second-level domain name? have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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