watchWWW/iana.org/kresdについて、ここに記述してください。

どこに問い合わせたかによって、振る舞いが異なるのか。

$ dig www.iana.org @127.0.0.3

; <<>> DiG 9.9.5-3ubuntu0.7-Ubuntu <<>> www.iana.org @127.0.0.3
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44815
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;www.iana.org.                  IN      A

;; ANSWER SECTION:
www.iana.org.           3600    IN      CNAME   ianawww.vip.icann.org.
ianawww.vip.icann.org.  30      IN      A       192.0.32.8

;; Query time: 477 msec
;; SERVER: 127.0.0.3#53(127.0.0.3)
;; WHEN: Fri Feb 12 11:59:26 JST 2016
;; MSG SIZE  rcvd: 107

[plan] plan 'www.iana.org.' type 'A'
[resl]   => using root hints
[resl]   => querying: '202.12.27.33' score: 10 zone cut: '.' m12n: 'ORG.' type: 'NS'
[resl]      optional: '199.7.83.42' score: 10 zone cut: '.' m12n: 'ORG.' type: 'NS'
[resl]      optional: '193.0.14.129' score: 10 zone cut: '.' m12n: 'ORG.' type: 'NS'
[resl]      optional: '192.58.128.30' score: 10 zone cut: '.' m12n: 'ORG.' type: 'NS'
[iter]   <= referral response, follow
[resl]   <= server: '202.12.27.33' rtt: 6 ms
[resl]   => querying: '199.19.57.1' score: 10 zone cut: 'org.' m12n: 'iana.ORg.' type: 'NS'
[resl]      optional: '199.19.53.1' score: 10 zone cut: 'org.' m12n: 'iana.ORg.' type: 'NS'
[resl]      optional: '199.249.120.1' score: 10 zone cut: 'org.' m12n: 'iana.ORg.' type: 'NS'
[resl]      optional: '199.19.54.1' score: 10 zone cut: 'org.' m12n: 'iana.ORg.' type: 'NS'
[iter]   <= referral response, follow
[resl]   <= server: '199.19.57.1' rtt: 7 ms
[resl]   => querying: '199.4.138.53' score: 10 zone cut: 'iana.org.' m12n: 'wWW.iAnA.org.' type: 'A'
[iter]   <= rcode: NOERROR
[iter]   <= cname chain, following

[plan] plan 'ianawww.vip.icann.org.' type 'A'
[resl]   <= server: '199.4.138.53' rtt: 165 ms
[resl]   => querying: '199.19.53.1' score: 10 zone cut: 'org.' m12n: 'IcANN.org.' type: 'NS'
[resl]      optional: '199.249.120.1' score: 10 zone cut: 'org.' m12n: 'IcANN.org.' type: 'NS'
[resl]      optional: '199.19.54.1' score: 10 zone cut: 'org.' m12n: 'IcANN.org.' type: 'NS'
[resl]      optional: '199.249.112.1' score: 10 zone cut: 'org.' m12n: 'IcANN.org.' type: 'NS'
[iter]   <= referral response, follow
[resl]   <= server: '199.19.53.1' rtt: 6 ms
[resl]   => querying: '199.4.138.53' score: 165 zone cut: 'icann.org.' m12n: 'VIp.iCaNn.oRg.' type: 'NS'
[iter]   <= referral response, follow
[resl]   <= server: '199.4.138.53' rtt: 174 ms
[resl]   => querying: '192.0.32.252' score: 10 zone cut: 'vip.icann.org.' m12n: 'IAnaWWw.ViP.ICanN.org.' type: 'A'
[resl]      optional: '192.0.47.252' score: 10 zone cut: 'vip.icann.org.' m12n: 'IAnaWWw.ViP.ICanN.org.' type: 'A'
[iter]   <= rcode: NOERROR
[resl]   <= server: '192.0.32.252' rtt: 114 ms
[resl] finished: 4, queries: 2, mempool: 32800 B