[dns-operations] which registries test nameservers before delegations?

[Randy Bush]

>> btw, 2182 server separation is mandatory, which may be a bit unusual.
> * checking different IP addresses

catches a lot.  folk in the poorer countries fall prey to crap service
providers.

> * using traceroute and looking for diversity in the final N hops

yep, backbone diversity and colo diversity

and one gets to know the more popular ancast providers, which are ok

randy