It’s possible to set up a custom domain for our extensions by subscribing to the PRO plan and up. To set this up, you need to go to:

To use a custom domain, you need to own a domain name. Once you've entered the domain name, please reach out to our support team using chat. Our team will help you to connect your custom domain to our servers.

This will only affect the customer-facing interfaces like form and portal. The extensions setting page will still be using web.miniextensions.com.

You can also embed the extension on your site as an alternative.