Possible downtime
 

We are currently in the process of adjusting the nameserver settings to ensure that NH remains accessible even if our main nameservers should fail. However whilst the nameservers propagate, you may experience periods when the site is not accessible. This should only last 48 hrs or so, so don't be concerned.

Update!
All changes have been completed and should now have propagated.

For those that are interested, we are now using 6 nameservers instead of the usual 2 for maximum reliability.