Basic knowledge for building your own website: What is a Subdomain

It's easy to build a website yourself by following the web development knowledge from Naibabiji. However, during the process, Naiba learned that many novice users are still confused about some basic terms, such as the subdomain introduced in this article. Presumably, friends preparing to build a website should at least know what a domain name is; a domain name is what we call a website address. To have your own domain name, you can directly refer to Naiba'sDomain Topic Articlesto register and purchase one.

What is a subdomain?

A subdomain is also called a subdomain. Using Naibabiji's domain name as an example will make it clear. The primary domain name of Naibabiji is naibabiji.com. Both www.naibabiji.com and blog.naibabiji.com are subdomains. That's right, only the domain name without anything attached is the primary domain name; any domain name with www. or other prefixes like blog. is a subdomain.

What is the function of a subdomain?

The main function of a subdomain is to distinguish different website content under the same website. After some large websites have a lot of content, they often consider separating relatively independent content into a separate website. This is beneficial for content focus and also for website SEO. If each website applied for a new domain name, it would not only waste resources but also be detrimental to brand building. Therefore, familiar examples like Baidu Zhidao, Baidu Tieba, Baidu Images, and Baidu Wenku all use subdomains of baidu.com.

How to obtain a subdomain?

As long as you own a domain, you can create subdomains under that domain. Creating a subdomain is simple; you just need to add the corresponding DNS record in the domain resolution settings. For example, to add the subdomain blog.naibabiji.com, you only need to fill in 'blog' for the record, select A record, and enter the corresponding server IP as the resolution value. Subdomains can also be multi-level (the exact number of levels Naiba hasn't researched), with the most commonly seen being two-level subdomains. For example, www.blog.naibabiji.com.