SAAS Alias and White label

Good afternoon!
I moved my domain to the system. Can I create alias names for a saas project without having a site in the system and using only DNS.
Example.
My domain sum.com and I need to provide clients with white option labels:
xxx.sum.com or charge.com leading to my platform.
Can I implement this? Or do I need a website on the platform for this?

xxx.sum.com is possible.

Wildcard subdomains can be activated, but there are a few requirements:

  1. The site must be on a Pro or above team.

  2. The DNS must be managed by Netlify OR you need to bring a custom wildcard SSL certificate.

  3. The site should not have any domain aliases or branch subdomains.

  4. The primary domain of the website should be on the same level as the required wildcard domain. For example:

If you need the wildcard to be *.bar.domain.com where * can be your wildcard subdomain, the primary domain must be www.bar.domain.com (www can be replaced with any string).

  1. You need to configure the DNS for the wildcard subdomain even in case you are using Netlify DNS. You can follow the external DNS configuration for subdomains and add a CNAME entry with * as the hostname or any other value that you want. The value of this DNS entry should be the Netlify site address.

If that sounds like something that would work, please let us know and we’d enable it for your site.