https://cmdns.dns-oarc.net/ is a custom developed DNS nameserver
that creates dynamic delegated subdomains to enable clients to query
for never-seen-before resource records in order to support a
general-purpose framework for testing DNS resolvers.

This is the command line client that you can run locally,
this will allow you to specify which resolver to test against.

Note: run tests with -done, otherwise it looks like it hangs
Example: cmdns-cli -suite standard -done
