Implementing secondary DNS servers is essential, and has kept our primary site up and running. That said, it is UNFORGIVABLE (imo) that Zerigo failed to send A

Implementing secondary DNS servers is essential, and has kept our primary site up and running. That said, it is UNFORGIVABLE (imo) that Zerigo failed to send ANY type of notification to its DNS customers... they have apparently been having ddos trouble for about 24 hours. afaik they do not offer any type of text or email alerts when they are experiencing trouble (such as the SMS messages I get from Heroku). So, while I like their tools, and the ddos hasn't affected our website that have secondary DNS, we will "walk" to another provider that cares enough about their customers to offer proactive alerts.