Default holding page for domain pointing to server that has no related cpanel account

Hi there If a customer points their domain to our server - but there's no entry on our server for that domain, we would like to show a default template. So - for example, customer goes to Google Domains and buys a domain and sets the nameservers to our server: Customer Domain = domainexample.com They set their DNS to our server NS NS1 = my1.serverexample.com NS2 = my2.serverexample.com Then, when someone types in " domainexample.com " - it should show the default template from our server (we can set the message in default template) Is there a way to do that without having any entry at all on our server? Basically, it's a "catch all" template for any domain that points to us, but we have not yet set anything up for them. Thanks