CThat isn't a supported port https://developers.cloudflare.com/fundamentals/get-started/reference/network-ports/. You can use an origin rule to change the port though https://developers.cloudflare.com/rules/origin-rules/features/#destination-port
CCorrect. You can follow this guide to make one https://developers.cloudflare.com/rules/origin-rules/create-dashboard/
Chost equals punᚷᚷᚷᚷᚷwork.de. You use one rule to redirect an the other to change the destination portCYeah
CDo you have a DNS record for the domain?
