A subdomain is an additional part of your primary domain.
To remove a subdomain in cPanel, here is what you need to do.
1. Log in to your cPanel Account.
2. In the Domains section, click on Subdomains.
3. Under the Modify a Subdomain list, you can see a list of subdomains.
4. Find your subdomain, and click on Remove under the Actions tab.
5. For confirmation, click on Delete Subdomain to remove your subdomain permanently.
