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Connecting a subdomain to your Squarespace site

A subdomain is an extension of your domain name that forwards to your site. The most common subdomain is "www," as in If your domain provider supports alternate subdomains, you can also use a subdomain like, where the subdomain is "blog," to redirect to your site. The process of connecting a domain or subdomain to your site is also called mapping.

Use this guide if you're adding a subdomain to an existing third-party domain. If you registered a domain through Squarespace, or if you transferred a third-party domain to Squarespace, visit Creating a subdomain for your Squarespace Domain instead of following this guide.

Note: All connected subdomains will point to the homepage and lead to your primary domain. It isn't possible to connect a subdomain to a page that isn't your homepage. 

Before you begin

  • You'll need a registered domain to set up a subdomain. You can register a domain with Squarespace, including a free custom domain if you're on the yearly plan. If you prefer to register with a third-party provider, ensure they offer Full DNS services. Examples include GoDaddyNetwork Solutions, or Dotster.
  • After you register a domain, set up your subdomain with your provider. 
  • You don't need to connect your regular domain to your site to connect a subdomain. For example, you should connect by following this guide, but you don't need to connect first.

Step 1 - Start the connection in Squarespace

To connect your domain, start in the Domains panel:

  1. In the Home Menu, click Settings, then click Domains. You can also press the ? key while any panel is open and search domains.
  2. Click Use a Domain I Own.
  3. Enter the subdomain name you’re connecting in the Domain Name field, then click Continue
  4. Click Connect From Provider.
Note: If you see a message that says "This domain is already connected to another Squarespace site," check your other Squarespace sites to find where the domain is connected. Then disconnect it from that site.
  1. Select Other from the drop-down menu.
  2. Click Connect Domain.
Note: Even if your third-party provider is listed in the drop-down menu, you should still select Other. The customized setup feature is for connecting domains, not subdomains.
  1. In the message that appears, click Okay.
  2. A new panel will open with the records to create in your provider account. Keep this panel open for your reference.

Step 2 - Log into your domain account

Log into your domain account, and find where you manage your DNS settings. Depending on your provider, this may be called Zone File Settings, Manage Domains, Domain Manager, DNS Manager, or something similar.

Here, you'll create these records so your domain correctly links to your Squarespace site.

Step 3 - Add the first CNAME record

In the first line of your Squarespace DNS Settings, copy the unique code that appears directly below the Host column. The unique code is a random string of numbers and letters that must point to

In your provider's DNS manager, create a CNAME with these values:

  • Alias or Host Name - Paste the unique code from the Domains panel (a random string of numbers and letters). Then add a period (".") at the end (with no spaces), followed by your subdomain. For example, if you're connecting, the format should be:
  • Type or Record Type - CNAME or CNAME Alias
  • Points To -
Note: If you're experiencing issues verifying your subdomain with a CNAME Record or if your domain provider doesn't support CNAME Records, verify your domain using a TXT Record.
Note: If you don't add this CNAME, or if it's entered incorrectly, the subdomain will unlink from your site after 15 days. If this happens, you can start over to reconnect the subdomain.

Step 4 - Add the second CNAME record

In the second line of your Squarespace DNS Settings, www appears directly below the Host column. This is the normal subdomain used for domains, but you'll point your subdomain to instead.

In your provider's DNS manager, create a CNAME with these values:

  • Alias or Host Name - Your subdomain. For example, if you're connecting, the format should be: blog
  • Type or Record Type - CNAME or CNAME Alias
  • Points to -

Step 5 - Refresh

After changing your records, return to your Squarespace DNS Settings and click Refresh below the records.

The Current Data column in the panel will start to update and show if your records are entered correctly. It can take up to 72 hours for this information to process.

Note: The www CNAME will still display as Record not found, even after the subdomain is connected.

Step 6 - Wait and test

If all records are entered correctly, your subdomain will connect to your site within 24 hours. At times, it can take up to 72 hours. Visit the Domains panel at any time to check your progress.

When the domain is correctly linked, the subdomain will direct to your Squarespace site.

Note: Even if your subdomain directs properly you may not see a Connected label in your subdomain panel. This is normal, as the www prefix isn't recognized for subdomains.

Step 7 - Uncheck Use WWW Prefix

The final step is to disable the "www" prefix from appearing. This is only required if you've set your subdomain as your primary domain.

In the Home Menu, click Settings, then click Domains. Select the subdomain, and ensure Use WWW Prefix is unchecked.

Note: Wait until your subdomain is correctly linked to complete this step, or you may see a "WWW Prefix Toggle Failed" error message.

Troubleshoot with the DNS record checker

If we detect that your records weren’t set up properly, your subdomain will appear in the Domains panel with the message “Can’t verify domain ownership.”

To troubleshoot, use the DNS checker tool in the Domains panel to see the exact CNAME and A Records to fix with your domain provider. Click the domain in the Domains panel, then click DNS Settings. Keep these tips in mind:

  • A Records pointing to IP addresses can interfere with the connection. Delete any A Records pointing to a different site in your domain provider. 
  • You can ignore A Records listing "Record not found" in the DNS Settings. Only CNAMEs are needed to connect a subdomain.

For more troubleshooting tips, visit Checking your domain mapping records.

Note: While these mapping steps will work for most subdomains, we recommend contacting your domain provider for specific help.
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Connecting a subdomain to your Squarespace site