Im using tailscale and have all my devices connected through it. Im not exposung any services in particular, just handy to be able to ssh around. Its always on and i did not notice huge power loss on my phone

1. network interface - check
2. dns - not applicable
3. firewall - check
4. ping - check
5. navigating to the web site - fail

There are two causes here. Either server fucks it self over or the client fucks itself over. For server check logs, for client: check spelling, specify full protocol and try different browser to pinpoint the problem. It would be great to see the full ip address output from ‘ip -c a’ on both client and server.