Steps to reproduce:

1. Enable the Site Factory.
2. Create a Foo folder under an Ibexa Digital Experience Platform content.
3. Create a Bar Site in Site Factory, use Foo as a parent content, use default domain as "domain" and type foo/bar in a path field so that final URL will look like: http://localhost/foo/bar.
4. Access the URL.

Result:
One is not able to match any content and is receiving a 404 exception.

Expected result:
path and domain fields validation in the Site Factory form should be implemented to avoid confusion later on.