http://sjnrk23rmcl4ie5atmz664v7o7k5nkk4jh7mm6lor2n4hxz2tos3eyid.onion/hackathon-ietf-105.html
This
is because Unbound does not follow the caching model described
in RFC 1034 . For performance reasons, it has two caches, one for entire DNS messages and
one for resource records. The first one is used for "normal" DNS
queries (for instance a TXT record), the
second for information that may be needed to answer queries,
such as the IP addresses of name servers.