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The Subdomain is Used by Another Application

For Linux hosting and 1&1 Managed Server packages

Learn how to rectify the error "Your subdomain is in use by another application" when trying to evaluate a Click & Build application.

In order to evaluate one of the Click & Build applications, the subdomain that was included in your package must not be assigned to any other 1&1 product or tool. These steps will help you check some of the other tools that may already be linked with you subdomain.

Please note:
If you are going to use a Click & Build application, you will first need to disconnect the current application from your subdomain.
Step 1
Log in to your 1&1 Control Panel and select the relevant package.
Step 2
From the Domains panel, click on Manage Domains.
Domains > Manage Domains
Domains > Manage Domains

Step 3
Check to see if your subdomain is currently connected to another application by viewing the Destination section of the Domain Overview page. If there is an abbreviation of an app next to the subdomain in question, then this verifies that it is unable to be linked to any programme. Below is a listing of potential app abbreviations to recognise when you are checking:
  • /app: Indicates a Click & Build Safe Mode Application.
  • /clickandbuilds: Indicates a Click & Build Free Mode Application.
  • /shop: Represents the 1&1 eShop package.
  • /wsb: Represents the 1&1 WebsiteBuilder programme.
  • /dsc: Represents the 1&1 DynamicSiteCreator.
Domain overview page
Domain overview page
Please note:
You will have to uninstall the Click & Build application before the subdomain can be applied to a different programme.
For additional information, you may want to reference: