And:
pi@ph5a:~ $ nc localhost 4711 <<< '>stats >quit'
[..]
dns_queries_today 6943
pi@ph5b:~ $ nc localhost 4711 <<< '>stats >quit'
[..]
dns_queries_today 2217
EDIT: And the second node (b) is a Pi 1B+ compared to node 1 (a) which is an older Pi 1B (without the +).