Today, we had our server equipment migrated to a new physical location. The host was down from about 12:45 PM - 4:45 MDT.
Everything came back online automatically and looks normal. No problems were encountered during the server move.
In the weird event that you are unable to connect to the Minecraft server, but this website is loading, you may be having issues with caching the previous DNS records. Try forcing your DNS cache to update. Windows users can do this by executing the following: