Perhaps. In this case the web was down. I definitely understand the point, stale data with TTLs which have expired, especially on RRSIG records is dangerous. B

Perhaps. In this case the web was down. I definitely understand the point, stale data with TTLs which have expired, especially on RRSIG records is dangerous. But I have to wonder about situations like this where DNS has been taken down, what the better good is. If the records can be proven to have been cached as authentic data at some point within some period of time. In this case hours, is it for the better good that stale authentic records are acceptable to serve back? In this case a stale period of some number of hours would have been good. I'm not so sure which is better in this case.