Accessing my docker webUI with domain names via tailscale

I hope I can explain this properly but I have a domain name that I would like to use to access my dockers hosted on my unraid server but I do not want to open it out to the internet.

Currently I'd be connecting to tailscale and logging in via http://:

But the port numbers are kinda hard to remember and I have a domain name so I was wondering if it's possible to connect via: https://radar.mydomainname.com but only locally via tailscale?