More info - NetSuite knows about it and is working on it:
We have heard reports that this problem is affecting a lot of customer and this is a widespread issue. We understand the situation and apologize for the inconvenience this may have caused.
We have filed a high priority issue for this matter. I will be attaching this case to that defect and keep you posted about it.
Defect 607135 SCA/ SiteBuilder > Boston DB > Website Can't be reached
The urgency level assigned to your defect was escalated to the highest level - U1. We understand this is a very critical defect.
Our management and engineering teams have been contacted to investigate and work on a resolution – we will keep you posted on the progress of the investigation. We will not stop working on this until it’s resolved.