How do I add a subdomain?

This article will show you how to add subdomains within your 123 Reg Control Panel.

Subdomains are an extension of your web address that can be used to direct visitors to a different area of your website. They are represented as an extra word that appears before your main domain name. For example, if your website is, you could use the subdomain to take people to your online store. Since search engines will recognise subdomains as separate entities, they can work separately from your main website. Simply follow the instructions below to get started.

Please note: this article was originally created for our current Control Panel. As such, the steps outlined below may not be relevant for domain names purchased before September 2023 as we will be migrating them to our current Control Panel between August and December 2023.

Step 1 of 7

Start by logging in to your 123 Reg Control Panel.

Step 2 of 7

Next, select Manage All opposite Domains within the ‘All Products and Services’ section.

Step 3 of 7

You will now see a complete list of your purchased domain names. Select which one(s) you wish to update from the provided list.

Select Domain

Step 4 of 7

This will take you to the overview page for your chosen domain. From here, click DNS within the toolbar.

Step 5 of 7

On the next page, click Add New Record.

Step 6 of 7

Create a new record with the following information:

  1. Type: select A from the list.
  2. Name: the hostname or prefix for this record (i.e. blog or shop).
  3. Value: enter the IP address this record will point to. You can even add multiple IP addresses to this record if you want.
Step 7 of 7

Once you’ve done this, click Save to update your DNS records.

Please note: it can taken between 24-48 hours for any DNS changes to fully propagate across the internet.