How Do I Add a Subdomain to My DNS Server?


Heather Bennett

How Do I Add a Subdomain to My DNS Server?

If you want to create a subdomain for your website, it’s essential to understand how to add it to your DNS (Domain Name System) server. The DNS server is responsible for translating domain names into IP addresses, allowing users to access websites using easily recognizable names.

Step 1: Access Your DNS Server

The first step is to access your DNS server’s control panel or interface. This can usually be done through your web hosting provider’s dashboard or a standalone DNS management tool.

Step 2: Locate the Domain Settings

Once you have accessed the DNS server, locate the domain settings section. This is where you can manage various aspects of your domain, including adding subdomains.

Step 3: Add the Subdomain Record

In this step, you need to add a new record for your subdomain. The specific method may vary depending on the interface of your DNS server, but generally, you will find an option like “Add Record” or “Create New Entry.”

Under the “Type” or “Record Type” field, select “CNAME” (Canonical Name) or “A” record type depending on your requirements. CNAME is commonly used for creating subdomains that point to another domain or hostname, while A records are used when you want the subdomain to have its own IP address.

Note: If you choose the CNAME option, you will need to specify the destination domain or hostname that this subdomain should point to.

Step 4: Enter Subdomain Details

In this step, provide the necessary details for your subdomain:

  • Name: Enter the name of your subdomain. For example, if you want to create a subdomain called “blog” for your website “,” enter “blog” in this field.
  • TTL (Time to Live): Specify the TTL value for the record.

    This determines how long DNS information is cached by other servers before being refreshed.

  • Value: If you chose the CNAME option, enter the destination domain or hostname that this subdomain should point to. If you opted for an A record, enter the IP address associated with the subdomain.

Note: Some DNS servers may also provide additional options like priority or weight, but these are usually optional and can be left blank unless required.

Step 5: Save and Verify

Once you have entered all the necessary details for your subdomain, save the changes. The DNS server will now update its records accordingly.

To verify if the subdomain has been successfully added, you can perform a DNS lookup or use online tools that check DNS records. These tools will display your domain’s DNS records, including any newly added subdomains.


Adding a subdomain to your DNS server is a straightforward process. By following these steps and properly configuring the necessary records, you can create as many subdomains as needed to organize and expand your website effectively.

If you encounter any difficulties while adding a subdomain, don’t hesitate to reach out to your web hosting provider’s support team for assistance. They will be able to guide you through the process specific to their system.

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