AXFR Method are not answers

By example, when create a query using nsztm1.digi.ninja server as UDP4 protocol and zonetransfer.me as hostname in AXFR method return a empty array response:

const dnsPacket = require('dns-packet')
const dgram = require('dgram')

const socket = dgram.createSocket('udp4')

const buf = dnsPacket.encode({
  type: 'query',
  id: 1,
  flags: dnsPacket.RECURSION_DESIRED,
  questions: [{
    type: 'AXFR',
    name: 'zonetransfer.me'
  }]
})

socket.on('message', message => {
  console.log(dnsPacket.decode(message))
})

socket.send(buf, 0, buf.length, 53, 'nsztm1.digi.ninja')

Results:

{
  id: 1,
  type: 'response',
  flags: 257,
  flag_qr: true,
  opcode: 'QUERY',
  flag_aa: false,
  flag_tc: false,
  flag_rd: true,
  flag_ra: false,
  flag_z: false,
  flag_ad: false,
  flag_cd: false,
  rcode: 'FORMERR',
  questions: [ { name: 'zonetransfer.me', type: 'AXFR', class: 'IN' } ],
  answers: [],
  authorities: [],
  additionals: []
}

I was expecting it to respond with the known and unknown records as a objects and buffer.

But using dig command:

$ dig -t AXFR zonetransfer.me @nsztm1.digi.ninja

; <<>> DiG 9.16.1-Ubuntu <<>> -t AXFR zonetransfer.me @nsztm1.digi.ninja
;; global options: +cmd
zonetransfer.me.    7200    IN  SOA nsztm1.digi.ninja. robin.digi.ninja. 2019100801 172800 900 1209600 3600
zonetransfer.me.    300 IN  HINFO   "Casio fx-700G" "Windows XP"
zonetransfer.me.    301 IN  TXT "google-site-verification=tyP28J7JAUHA9fw2sHXMgcCC0I6XBmmoVi04VlMewxA"
zonetransfer.me.    7200    IN  MX  0 ASPMX.L.GOOGLE.COM.
zonetransfer.me.    7200    IN  MX  10 ALT1.ASPMX.L.GOOGLE.COM.
zonetransfer.me.    7200    IN  MX  10 ALT2.ASPMX.L.GOOGLE.COM.
zonetransfer.me.    7200    IN  MX  20 ASPMX2.GOOGLEMAIL.COM.
zonetransfer.me.    7200    IN  MX  20 ASPMX3.GOOGLEMAIL.COM.
zonetransfer.me.    7200    IN  MX  20 ASPMX4.GOOGLEMAIL.COM.
zonetransfer.me.    7200    IN  MX  20 ASPMX5.GOOGLEMAIL.COM.
zonetransfer.me.    7200    IN  A   5.196.105.14
zonetransfer.me.    7200    IN  NS  nsztm1.digi.ninja.
zonetransfer.me.    7200    IN  NS  nsztm2.digi.ninja.
_acme-challenge.zonetransfer.me. 301 IN TXT "6Oa05hbUJ9xSsvYy7pApQvwCUSSGgxvrbdizjePEsZI"
_sip._tcp.zonetransfer.me. 14000 IN SRV 0 0 5060 www.zonetransfer.me.
14.105.196.5.IN-ADDR.ARPA.zonetransfer.me. 7200 IN PTR www.zonetransfer.me.
asfdbauthdns.zonetransfer.me. 7900 IN   AFSDB   1 asfdbbox.zonetransfer.me.
asfdbbox.zonetransfer.me. 7200  IN  A   127.0.0.1
asfdbvolume.zonetransfer.me. 7800 IN    AFSDB   1 asfdbbox.zonetransfer.me.
canberra-office.zonetransfer.me. 7200 IN A  202.14.81.230
cmdexec.zonetransfer.me. 300    IN  TXT "; ls"
contact.zonetransfer.me. 2592000 IN TXT "Remember to call or email Pippa on +44 123 4567890 or pippa@zonetransfer.me when making DNS changes"
dc-office.zonetransfer.me. 7200 IN  A   143.228.181.132
deadbeef.zonetransfer.me. 7201  IN  AAAA    dead:beaf::
dr.zonetransfer.me. 300 IN  LOC 53 20 56.558 N 1 38 33.526 W 0.00m 1m 10000m 10m
DZC.zonetransfer.me.    7200    IN  TXT "AbCdEfG"
email.zonetransfer.me.  2222    IN  NAPTR   1 1 "P" "E2U+email" "" email.zonetransfer.me.zonetransfer.me.
email.zonetransfer.me.  7200    IN  A   74.125.206.26
Hello.zonetransfer.me.  7200    IN  TXT "Hi to Josh and all his class"
home.zonetransfer.me.   7200    IN  A   127.0.0.1
Info.zonetransfer.me.   7200    IN  TXT "ZoneTransfer.me service provided by Robin Wood - robin@digi.ninja. See http://digi.ninja/projects/zonetransferme.php for more information."
internal.zonetransfer.me. 300   IN  NS  intns1.zonetransfer.me.
internal.zonetransfer.me. 300   IN  NS  intns2.zonetransfer.me.
intns1.zonetransfer.me. 300 IN  A   81.4.108.41
intns2.zonetransfer.me. 300 IN  A   167.88.42.94
office.zonetransfer.me. 7200    IN  A   4.23.39.254
ipv6actnow.org.zonetransfer.me. 7200 IN AAAA    2001:67c:2e8:11::c100:1332
owa.zonetransfer.me.    7200    IN  A   207.46.197.32
robinwood.zonetransfer.me. 302  IN  TXT "Robin Wood"
rp.zonetransfer.me. 321 IN  RP  robin.zonetransfer.me. robinwood.zonetransfer.me.
sip.zonetransfer.me.    3333    IN  NAPTR   2 3 "P" "E2U+sip" "!^.*$!sip:customer-service@zonetransfer.me!" .
sqli.zonetransfer.me.   300 IN  TXT "' or 1=1 --"
sshock.zonetransfer.me. 7200    IN  TXT "() { :]}; echo ShellShocked"
staging.zonetransfer.me. 7200   IN  CNAME   www.sydneyoperahouse.com.
alltcpportsopen.firewall.test.zonetransfer.me. 301 IN A 127.0.0.1
testing.zonetransfer.me. 301    IN  CNAME   www.zonetransfer.me.
vpn.zonetransfer.me.    4000    IN  A   174.36.59.154
www.zonetransfer.me.    7200    IN  A   5.196.105.14
xss.zonetransfer.me.    300 IN  TXT "'><script>alert('Boo')</script>"
zonetransfer.me.    7200    IN  SOA nsztm1.digi.ninja. robin.digi.ninja. 2019100801 172800 900 1209600 3600
;; Query time: 228 msec
;; SERVER: 81.4.108.41#53(81.4.108.41)
;; WHEN: mar mar 29 10:59:39 -03 2022
;; XFR size: 50 records (messages 1, bytes 1994)

mafintosh / dns-packet

AXFR Method are not answers #82