How to add a subdomain in cPanel?

A subdomain is an address associated with an existing domain, such as support.exemple.com. It can serve a separate website or application.

Prepare the address and directory

Choose the subdomain name and a suitable directory. Check where the domain's DNS zone is managed before adding or changing a record.

Create the subdomain

1. In cPanel, open Domains.
2. Choose Create a New Domain.
3. Enter the full subdomain address.
4. Use your chosen document root, separate from the primary website if you want independent content.
5. Confirm and check the address and created directory.

In an older interface, a separate Subdomains tool may appear. The goal remains to associate the address with its web directory.

Check DNS and the certificate

If DNS is managed outside this hosting account, add the necessary record with that provider. Then open the subdomain over HTTPS and check its certificate.

Avoid publishing errors

A subdomain displaying the wrong website often indicates an incorrect document root or DNS setting. Check these before moving files or deleting the domain.

Interface illustrations

These screenshots show the versions used when the original article was written. Labels may differ in your current version; follow the written procedure and your account settings.

Related guides

• Difference between additional domain, subdomain, and alias.
• cPanel