If you run into an issue with players not being able to connect, you may want to disable Proxied, but this will expose your IP. If you have DDoS protection with us, then don't worry and feel free to disable it.
A Record Type
Add an SRV Record
Name: play.YourURL.com i.e play.projectsloth.org
Port: 30120 (default port, change this to your own port if you have a different one)