After rebooting a server, my tklapp.com domain was not longer available:
Did your server change it's IP? It might be a DNS propogation issue...
I didn't explicitly change the IP. Perhaps the reboot resulted in an IP change. So maybe I just didn't wait long enough.
For your own use, using a 'better' DNS provider will help (eg Goole's 184.108.40.206), but that isn't much good for other people trying to access your site.
More information about formatting options