We did have about an hour of downtime last evening. It was due to an upstream provider outage, though that problem has been resolved. We do apologize for the inconvenience.
I will add specifying a secondary DNS to our feature request list.
Go to everydns.net and setup a secondary DNS server record there. Then on your nameserver information add the everydns dns servers and then you will have good redundancy for free.
hi, a agree! could it be that such a downtime happened yesterday? my domains could not be reached for some hours, and i also couldnt reach dynadot.com. i think the reason why you have to specify at least 2 nameservers is to prevent such downtimes. but this doesnt make sense if both of them are located so close (same network...) that they go down at the same time.