> ## Documentation Index
> Fetch the complete documentation index at: https://docs.webapp.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Hosting Domains

> Deploy your project to a custom domain or the onwebapp.io domain

## Custom Domains

If you want to deploy your webapp.io virtual machine to a custom domain, add a domain in the `Custom Domains` section from your organization dashboard.

<img src="https://mintcdn.com/webappio/s6-eR6DYSUsnelQ0/resources/deploy-custom-domains.png?fit=max&auto=format&n=s6-eR6DYSUsnelQ0&q=85&s=53917cf3f5ce51ee9cfc675fb121fc03" alt="View of the custom domains page" width="3012" height="1564" data-path="resources/deploy-custom-domains.png" />

## onwebapp.io Domain

If you don't have a domain that you want to deploy to or you want to test with a domain, you can use the `onwebapp.io` domain.

To use this domain, click on `Webapp.io Subdomain` when selecting for a `Domain Type`.

<img src="https://mintcdn.com/webappio/s6-eR6DYSUsnelQ0/resources/deploy-domain-type.png?fit=max&auto=format&n=s6-eR6DYSUsnelQ0&q=85&s=f194fbd67a35f8a4ec74d5faede49dcf" alt="View of the domains when deploying" width="3012" height="1478" data-path="resources/deploy-domain-type.png" />

In the input field, enter in a subdomain. A subdomain can only contain lowercase letters, numbers, and dashes.

If your subdomain is available, we'll start a new run and deploy your project to the URL listed below the input field. If it's not available you'll receive an error to use a different domain.

<Warning>
  * Dashes for the onwebapp.io subdomain are not allowed at the beginning or end of the subdomain
  * You cannot deploy to the onwebapp.io domain
</Warning>