@Dark_Jester
Seems compile.html is broken in the current version of CS (@dfabulich).
But you can download and replace the file with this one for the time being, which still works.
Then all you have to do is follow the steps here (to ammend your url and make it act like a public link): Can't post my Demo
I should add that when we say ‘ammend the url’ we just mean when you post it on the forum, you can’t actually change it on the DB website.