这里有用 IPv6 上网的同学么？

[Livid]

如果你们运行一下 dig a1.mzstatic.com 会看到的地址是什么呢？

[ooxxcc]

没有AAAA记录
[21:02]ooxx@cc-MBP:~$ dig a1.mzstatic.com
; <<>> DiG 9.8.3-P1 <<>> a1.mzstatic.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32341
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;a1.mzstatic.com. IN A

;; ANSWER SECTION:
a1.mzstatic.com. 10 IN CNAME a1.mzstatic.apple.com.akadns.net.
a1.mzstatic.apple.com.akadns.net. 10 IN CNAME a1.mzstatic.com.edgesuite.net.
a1.mzstatic.com.edgesuite.net. 10 IN CNAME a1.da1.akamai.net.
a1.da1.akamai.net. 5 IN A 72.246.190.73
a1.da1.akamai.net. 5 IN A 72.246.190.58

;; Query time: 238 msec
;; SERVER: 192.168.234.1#53(192.168.234.1)
;; WHEN: Thu Apr 11 21:02:09 2013
;; MSG SIZE rcvd: 179

[21:02]ooxx@cc-MBP:~$ dig in AAAA a1.mzstatic.com

; <<>> DiG 9.8.3-P1 <<>> in AAAA a1.mzstatic.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29224
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;a1.mzstatic.com. IN AAAA

;; ANSWER SECTION:
a1.mzstatic.com. 10 IN CNAME a1.mzstatic.apple.com.akadns.net.
a1.mzstatic.apple.com.akadns.net. 10 IN CNAME a1.mzstatic.com.edgesuite.net.
a1.mzstatic.com.edgesuite.net. 10 IN CNAME a1.da1.akamai.net.

;; AUTHORITY SECTION:
da1.akamai.net. 138 IN SOA n0da1.akamai.net. hostmaster.akamai.com. 1365684483 1000 1000 1000 1800

;; Query time: 72 msec
;; SERVER: 192.168.234.1#53(192.168.234.1)
;; WHEN: Thu Apr 11 21:02:25 2013
;; MSG SIZE rcvd: 207

[cutehalo]

; <<>> DiG 9.3.2 <<>> a1.mzstatic.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1681
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 6, ADDITIONAL: 6

;; QUESTION SECTION:
;a1.mzstatic.com. IN A

;; ANSWER SECTION:
a1.mzstatic.com. 2448 IN CNAME a1.mzstatic.apple.com.akadns.net
.
a1.mzstatic.apple.com.akadns.net. 11 IN CNAME a1.mzstatic.com.ccgslb.com.cn.
a1.mzstatic.com.ccgslb.com.cn. 862 IN CNAME cc00123.h.cnc.ccgslb.com.cn.
cc00123.h.cnc.ccgslb.com.cn. 24 IN A 202.205.109.244

;; AUTHORITY SECTION:
cnc.ccgslb.com.cn. 44835 IN NS ns8.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 44835 IN NS ns7.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 44835 IN NS ns4.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 44835 IN NS ns9.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 44835 IN NS ns1.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 44835 IN NS ns10.cnc.ccgslb.com.cn.

;; ADDITIONAL SECTION:
ns1.cnc.ccgslb.com.cn. 65781 IN A 202.108.251.40
ns4.cnc.ccgslb.com.cn. 62030 IN A 60.217.241.22
ns7.cnc.ccgslb.com.cn. 62020 IN A 202.108.251.143
ns8.cnc.ccgslb.com.cn. 61862 IN A 122.143.8.224
ns9.cnc.ccgslb.com.cn. 61900 IN A 58.68.141.4
ns10.cnc.ccgslb.com.cn. 63076 IN A 221.204.248.66

;; Query time: 370 msec
;; SERVER: 202.112.144.236#53(202.112.144.236)
;; WHEN: Thu Apr 11 21:34:02 2013
;; MSG SIZE rcvd: 371

[iEverX]

; <<>> DiG 9.8.1-P1 <<>> a1.mzstatic.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26538
;; flags: qr rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;a1.mzstatic.com. IN A

;; ANSWER SECTION:
a1.mzstatic.com. 1187 IN CNAME a1.mzstatic.apple.com.akadns.net.
a1.mzstatic.apple.com.akadns.net. 74 IN CNAME a1.mzstatic.com.ccgslb.com.cn.
a1.mzstatic.com.ccgslb.com.cn. 60 IN CNAME cc00123.h.cnc.ccgslb.com.cn.
cc00123.h.cnc.ccgslb.com.cn. 74 IN A 111.161.38.44
cc00123.h.cnc.ccgslb.com.cn. 74 IN A 202.108.251.163
cc00123.h.cnc.ccgslb.com.cn. 74 IN A 202.108.251.171
cc00123.h.cnc.ccgslb.com.cn. 74 IN A 111.161.38.6

;; Query time: 18 msec
;; SERVER: 127.0.1.1#53(127.0.1.1)
;; WHEN: Thu Apr 11 21:57:37 2013
;; MSG SIZE rcvd: 214

[mutinux]

% dig a1.mzstatic.com !2053

; <<>> DiG 9.8.3-P1 <<>> a1.mzstatic.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25579
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;a1.mzstatic.com. IN A

;; ANSWER SECTION:
a1.mzstatic.com. 1070 IN CNAME a1.mzstatic.apple.com.akadns.net.
a1.mzstatic.apple.com.akadns.net. 188 IN CNAME a1.mzstatic.com.edgesuite.net.
a1.mzstatic.com.edgesuite.net. 14558 IN CNAME a1.da1.akamai.net.
a1.da1.akamai.net. 9 IN A 165.254.157.153
a1.da1.akamai.net. 9 IN A 165.254.157.186

;; Query time: 196 msec
;; SERVER: 208.67.220.220#53(208.67.220.220)
;; WHEN: Thu Apr 11 22:07:23 2013
;; MSG SIZE rcvd: 179

[xiaochong]

dig a1.mzstatic.com

; <<>> DiG 9.8.1-P1 <<>> a1.mzstatic.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13672
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 6, ADDITIONAL: 6

;; QUESTION SECTION:
;a1.mzstatic.com. IN A

;; ANSWER SECTION:
a1.mzstatic.com. 1133 IN CNAME a1.mzstatic.apple.com.akadns.net.
a1.mzstatic.apple.com.akadns.net. 274 IN CNAME a1.mzstatic.com.ccgslb.com.cn.
a1.mzstatic.com.ccgslb.com.cn. 288 IN CNAME cc00123.h.cnc.ccgslb.com.cn.
cc00123.h.cnc.ccgslb.com.cn. 95 IN A 202.205.109.244

;; AUTHORITY SECTION:
cnc.ccgslb.com.cn. 26787 IN NS ns7.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 26787 IN NS ns9.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 26787 IN NS ns4.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 26787 IN NS ns1.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 26787 IN NS ns8.cnc.ccgslb.com.cn.
cnc.ccgslb.com.cn. 26787 IN NS ns10.cnc.ccgslb.com.cn.

;; ADDITIONAL SECTION:
ns1.cnc.ccgslb.com.cn. 70929 IN A 202.108.251.40
ns4.cnc.ccgslb.com.cn. 81272 IN A 60.217.241.22
ns7.cnc.ccgslb.com.cn. 83137 IN A 202.108.251.143
ns8.cnc.ccgslb.com.cn. 62864 IN A 122.143.8.224
ns9.cnc.ccgslb.com.cn. 63743 IN A 58.68.141.4
ns10.cnc.ccgslb.com.cn. 70912 IN A 221.204.248.66

;; Query time: 3 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Apr 11 23:37:53 2013
;; MSG SIZE rcvd: 371