Check that www.cenic.org exists for IPv4 in case we have a typo on the domain name. Use dig to query the local name server (::1).


; <<>> DiG 9.4.1-P1 <<>> +trace +all cenic.org soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 347
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; AUTHORITY SECTION:
.			3600000	IN	NS	A.ROOT-SERVERS.NET.
.			3600000	IN	NS	B.ROOT-SERVERS.NET.
.			3600000	IN	NS	L.ROOT-SERVERS.NET.
.			3600000	IN	NS	I.ROOT-SERVERS.NET.
.			3600000	IN	NS	E.ROOT-SERVERS.NET.
.			3600000	IN	NS	D.ROOT-SERVERS.NET.
.			3600000	IN	NS	F.ROOT-SERVERS.NET.
.			3600000	IN	NS	K.ROOT-SERVERS.NET.
.			3600000	IN	NS	J.ROOT-SERVERS.NET.
.			3600000	IN	NS	G.ROOT-SERVERS.NET.
.			3600000	IN	NS	M.ROOT-SERVERS.NET.
.			3600000	IN	NS	H.ROOT-SERVERS.NET.
.			3600000	IN	NS	C.ROOT-SERVERS.NET.

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	465054	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	465054	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	423318	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	165712	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	162266	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	162266	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	420638	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	465925	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	161661	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	466589	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	423627	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	423627	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	465161	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	465161	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 04:49:10 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1786
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 12

;; QUESTION SECTION:
;cenic.org.			IN	SOA

;; AUTHORITY SECTION:
org.			172800	IN	NS	a0.org.afilias-nst.info.
org.			172800	IN	NS	a2.org.afilias-nst.info.
org.			172800	IN	NS	b0.org.afilias-nst.org.
org.			172800	IN	NS	b2.org.afilias-nst.org.
org.			172800	IN	NS	c0.org.afilias-nst.info.
org.			172800	IN	NS	d0.org.afilias-nst.org.

;; ADDITIONAL SECTION:
a0.org.afilias-nst.info. 172800	IN	A	199.19.56.1
a2.org.afilias-nst.info. 172800	IN	A	199.249.112.1
b0.org.afilias-nst.org.	172800	IN	A	199.19.54.1
b2.org.afilias-nst.org.	172800	IN	A	199.249.120.1
c0.org.afilias-nst.info. 172800	IN	A	199.19.53.1
d0.org.afilias-nst.org.	172800	IN	A	199.19.57.1
a0.org.afilias-nst.info. 172800	IN	AAAA	2001:500:e::1
a2.org.afilias-nst.info. 172800	IN	AAAA	2001:500:40::1
b0.org.afilias-nst.org.	172800	IN	AAAA	2001:500:c::1
b2.org.afilias-nst.org.	172800	IN	AAAA	2001:500:48::1
c0.org.afilias-nst.info. 172800	IN	AAAA	2001:500:b::1
d0.org.afilias-nst.org.	172800	IN	AAAA	2001:500:f::1

;; Query time: 39 msec
;; SERVER: 2001:7fd::1#53(K.ROOT-SERVERS.NET)
;; WHEN: Fri May 18 04:49:10 2012
;; MSG SIZE  rcvd: 429

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1801
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3

;; QUESTION SECTION:
;cenic.org.			IN	SOA

;; AUTHORITY SECTION:
cenic.org.		86400	IN	NS	ns4.cenic.org.
cenic.org.		86400	IN	NS	ns5.cenic.org.
cenic.org.		86400	IN	NS	ns6.cenic.org.

;; ADDITIONAL SECTION:
ns4.cenic.org.		86400	IN	A	137.164.29.67
ns5.cenic.org.		86400	IN	A	137.164.29.69
ns6.cenic.org.		86400	IN	A	198.188.255.193

;; Query time: 354 msec
;; SERVER: 2001:500:48::1#53(b2.org.afilias-nst.org)
;; WHEN: Fri May 18 04:49:10 2012
;; MSG SIZE  rcvd: 129

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;cenic.org.			IN	SOA

;; ANSWER SECTION:
cenic.org.		10800	IN	SOA	ns4.cenic.org. dnsmgr.cenic.org. 2011032387 3600 900 1209600 10800

;; Query time: 204 msec
;; SERVER: 198.188.255.193#53(ns6.cenic.org)
;; WHEN: Fri May 18 04:49:11 2012
;; MSG SIZE  rcvd: 74

HTTP

Looking for CNAME of www.cenic.org
Checking if there is a AAAA for www.cenic.org ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.cenic.org aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1067
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.cenic.org.			IN	AAAA

;; AUTHORITY SECTION:
cenic.org.		10800	IN	SOA	ns4.cenic.org. dnsmgr.cenic.org. 2011032387 3600 900 1209600 10800

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 04:49:12 2012
;; MSG SIZE  rcvd: 78

Checking other options ... succeeded as www6.cenic.org.
Sending...

HEAD / HTTP/1.1
Host: www6.cenic.org
User-Agent: ipv6-survey.pl/1.97 http://www.mrp.net/IPv6_Survey.html

Reading ...

HTTP/1.1 200 OK
Date: Thu, 17 May 2012 19:19:13 GMT
Server: Apache/2.2.21 (Unix) DAV/2
Accept-Ranges: bytes
Cache-Control: max-age=60
Expires: Thu, 17 May 2012 19:20:13 GMT
MS-Author-Via: DAV
Content-Type: text/html

Accessed / [2607:f380:0:4000:0:0:cf3e:5042] Response: HTTP/1.1 200 OK

SMTP

MX 0 mail2.cenic.org
Looking for AAAA on mail2.cenic.org
MX 0 joshuatree.cenic.org
Looking for AAAA on joshuatree.cenic.org

DNS

Looking for AAAA of NS ns5.cenic.org
No AAAA record for ns5.cenic.org
Looking for AAAA of NS ns4.cenic.org
No AAAA record for ns4.cenic.org
Looking for AAAA of NS ns6.cenic.org
No AAAA record for ns6.cenic.org

NTP

Looking for an A record for ntp.cenic.org
Found an A or AAAA record. Now looking for a AAAA.
Cannot find a AAAA record for ntp.cenic.org
Cannot find a AAAA record for ntp.ipv6.cenic.org

XMPP

Looking for a SRV record for _xmpp-client._tcp.cenic.org
Looking for a SRV record for _xmpp-server._tcp.cenic.org

Last Updated: Thu May 17 19:19:15 2012 UTC