It is offline for everyone. My guess is that when the website tries to access the server to check for population, it doesn't get an answer back from the server, and never changes the number it is displaying. Pretty sure that if you keep checking, the number will always be the same, for as long as the server is down.
Correct, the server is pretty much frozen, as such it continues displaying the same number of user connected. Just gonna have to go into withdrawal and be without our pokemon fix for a while guys.