How do I know if my server is up without friends' help?

[Niven]

My friends are like never on, or there doing sommething like a DM and don't wanna exit. So I tried forwarding my ports. How do I know if my server is up or dead?

[Ad Bot]

[Cheemo]

I always use GUI Editor and look at it with the "Join Server GUI" or I use "Ping Diagnostic" which I download from 'info' from some server.