minimal - minimizes size of the DNS response message whenever possible.
The minimal plugin tries to minimize the size of the response. Depending
on the response type it removes resource records from the AUTHORITY and
Specifically this plugin looks at successful responses (this
excludes negative responses, i.e. nodata or name error). If the successful
response isn't a delegation only the RRs in the answer section are written
to the client.
Enable minimal responses:
BIND 9 Configuration Reference
forward . 220.127.116.11