Server Isn't Public?

Basically my server hasn’t been on the public server list the last couple days, and just today I saw it on there. But a couple hours later, its not on there?

Why is this?

I’m guessing your server is ran off your IP, check that you forwarded the ports properly…

No it has all to do with Your server rank

the server’s activity / number of users joined / average user count / ping / etc.

Thanks sam, massive help!