I've made a basic population / uptime tracker for Haven, you can view it here:
http://66.150.198.94/RedFox/Haven/Tracker.html
It should be fairly self explanatory, but a few notes:
- You can pick the range with the buttons in the top left corner
- The graph will update with new data automatically, you don't need to refresh the page
- Green is uptime
- Orange is the server shutting/shut down
- Red is a server crash
You can also check in on Legacy Haven here:
http://legacy.havenandhearth.com/portal/srv-state
~Enjoy