How can I add or update CNAME Records in my Wix account?
A CNAME or canonical name record specifies that the domain name is an alias of another, canonical domain name. You can add or update your CNAME records from the Domains page of your Wix account.
To add or update a CNAME record: Sign in to your Wix account > from the top menu, hover over Subscriptions > click Domains > under My Domains, next to the relevant domain, click Manage.
Under Domain Summary, select the Advanced tab > next to DNS Records, click Manage > next to CNAME (Aliases), click Add a new CNAME record to add or click the pencil icon to edit > enter the information in the pop-up window > click Save.
If your domain is connected to your Wix site via Pointing, your domain host is in control of your CNAME records.