A sub-domain is a lower level domain. If your domain name is “example.com,” where .com is the top-level domain, you can create a sub-domain by adding a name to the left of your domain name. Your sub-domain name can, therefore, be“subdomain.example.com,” “help.example.com,” “blog.example.com” or a myriad of other names. It is also possible to add multiple levels of sub-domains for example “pics.blog.example.com” to point to a more specific area of your website.
A sub-domain has the same functional capability as a domain, so there is no need to sign up for a new domain name if you do want to separate your website content, build another website or share your site with another party. You only need to create a sub-domain under your existing domain and use it as a separate entity. Here’s some of the most popular articles that you can check: How Web Hosting and Domains Impact SEO Strategy
How to Create a Sub Domain – step by step
Sub-domain creation is done on the DNS panel of your web host. Most web host interfaces are somewhat similar since they use a CPanel interface. This guide should, therefore, work with most web hosts.
- Log into your account on the CPanel
- On the control panel, click on the domain icon and choose the domain from the drop down list
- Under the domains category, you should see options for “Addon Domains,” “Parked Domains,” “Simple DNS Zone Editor,” “Redirects” and “sub-domains.” Select the Sub-domains options.
- After clicking on the sub-domains option, two text boxes will appear. One should contain your domain name, and the other should be empty. On the empty box input the sub-domain name, you have chosen.
- After typing in the name, click the Create button. Now you have a sub-domain
Selecting a sub-domain name
The choice of sub-domain name can affect your SEO negatively or positively. You should keep it as short as possible and use keywords that help your website rank higher. Try to be creative and come up with a memorable name that makes sense. Your sub-domain name should be descriptive. It should represent the franchise, product line, niche or content it holds. For example, if it is about car parts, you can pick “carparts.example.com,” or if it is a blog, you can pick “blog.example.com.”
When creating sub-domains, you should be very careful in name selection and creation of a sub-domain strategy. Mistakes like poor naming or creating sub-domains with similar theming can damage your site performance.
— Gary Freeman (@GaryLFreeman) 28 de abril de 2017