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Publishing your website on an IONOS domain

Learn how to connect your B12 website to your IONOS domain

Written by: Madeline B.

Last updated: 26 Nov., 2025

  This feature requires the Basic Subscription or above.
View plans and pricing here.

If you’re using IONOS to manage your domain, you can connect it to your B12 website. Follow these steps to complete your setup.

Addiing your domain

1. In the left sidebar menu, go to Domains.

2. Click Connect domain I already own.

3. Enter your domain, starting with www.

  • Check the Make this my primary domain box if you want this domain considered your official domain by search engines. We accomplish this by automatically adding a canonical tag to all pages of your website pointing to your primary domain.

  • Check Enable email sending for this domain if you want to be able to send emails through B12, but you are using another email service to receive emails. See more information here.

  • Check Enable email forwarding for this domain if you would like to create a custom email address. See more information here.

4. Click Sync domain.


5. The editor will detect your domain provider and prompt you to log in to your IONOS account.

Registrar not detected? If your registrar is not detected, use this article to manually connect your domain!

6. Enter your IONOS login credentials.

7. Approve the connection request.

8. Click Publish to update your live website.

Note: It may take a few hours for your Domain to show as Connected in the Editor, and it may take 24-48 hours for your B12 website to appear on your domain.