Adding a CNAME Using 1and1

Updated 3 months ago by John Hurley

  1. Log in to your account at https://admin.1and1.com
  2. If it's not already selected, click the Administration tab.
  3. Click Domains. The Domain Overview page appears.
  4. From the New drop‐down menu, select Create Subdomain. (If you've already created a
    subdomain for your file sharing address, skip to step six.)
  5. Enter only the subdomain you want to use, and click OK. For example, if you chose
    uploads.mydomain.com for your blog's address, you should enter “uploads” here.
  6. Select the checkbox next to the subdomain that you will be using. (Example: uploads.mydomain.com)
  7. From the DNS menu, select Edit DNS Settings.
  8. Click the radio button next to CNAME.
  9. Enter <0000000000>.customCNAME.com next to Alias.
    Note: Support will give you a unique 10 character prefix for the .customCNAME.com upon request.
  10. Click OK.


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