Check that www.qwest.com 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 qwest.com soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 873
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			177961	IN	NS	b.root-servers.net.
.			177961	IN	NS	a.root-servers.net.
.			177961	IN	NS	l.root-servers.net.
.			177961	IN	NS	f.root-servers.net.
.			177961	IN	NS	i.root-servers.net.
.			177961	IN	NS	m.root-servers.net.
.			177961	IN	NS	e.root-servers.net.
.			177961	IN	NS	j.root-servers.net.
.			177961	IN	NS	h.root-servers.net.
.			177961	IN	NS	c.root-servers.net.
.			177961	IN	NS	d.root-servers.net.
.			177961	IN	NS	g.root-servers.net.
.			177961	IN	NS	k.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	47284	IN	A	198.41.0.4
a.root-servers.net.	47284	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	5548	IN	A	192.228.79.201
c.root-servers.net.	393332	IN	A	192.33.4.12
d.root-servers.net.	351681	IN	A	128.8.10.90
d.root-servers.net.	351681	IN	AAAA	2001:500:2d::d
e.root-servers.net.	2868	IN	A	192.203.230.10
f.root-servers.net.	48155	IN	A	192.5.5.241
f.root-servers.net.	353031	IN	AAAA	2001:500:2f::f
g.root-servers.net.	48819	IN	A	192.112.36.4
h.root-servers.net.	5857	IN	A	128.63.2.53
h.root-servers.net.	5857	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	47391	IN	A	192.36.148.17
i.root-servers.net.	47391	IN	AAAA	2001:7fe::53

;; Query time: 20 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 00:52:00 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 109
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;qwest.com.			IN	SOA

;; AUTHORITY SECTION:
com.			172800	IN	NS	g.gtld-servers.net.
com.			172800	IN	NS	e.gtld-servers.net.
com.			172800	IN	NS	i.gtld-servers.net.
com.			172800	IN	NS	f.gtld-servers.net.
com.			172800	IN	NS	l.gtld-servers.net.
com.			172800	IN	NS	k.gtld-servers.net.
com.			172800	IN	NS	j.gtld-servers.net.
com.			172800	IN	NS	d.gtld-servers.net.
com.			172800	IN	NS	b.gtld-servers.net.
com.			172800	IN	NS	h.gtld-servers.net.
com.			172800	IN	NS	c.gtld-servers.net.
com.			172800	IN	NS	a.gtld-servers.net.
com.			172800	IN	NS	m.gtld-servers.net.

;; ADDITIONAL SECTION:
a.gtld-servers.net.	172800	IN	A	192.5.6.30
b.gtld-servers.net.	172800	IN	A	192.33.14.30
c.gtld-servers.net.	172800	IN	A	192.26.92.30
d.gtld-servers.net.	172800	IN	A	192.31.80.30
e.gtld-servers.net.	172800	IN	A	192.12.94.30
f.gtld-servers.net.	172800	IN	A	192.35.51.30
g.gtld-servers.net.	172800	IN	A	192.42.93.30
h.gtld-servers.net.	172800	IN	A	192.54.112.30
i.gtld-servers.net.	172800	IN	A	192.43.172.30
j.gtld-servers.net.	172800	IN	A	192.48.79.30
k.gtld-servers.net.	172800	IN	A	192.52.178.30
l.gtld-servers.net.	172800	IN	A	192.41.162.30
m.gtld-servers.net.	172800	IN	A	192.55.83.30
a.gtld-servers.net.	172800	IN	AAAA	2001:503:a83e::2:30

;; Query time: 129 msec
;; SERVER: 192.112.36.4#53(g.root-servers.net)
;; WHEN: Wed May 23 00:52:00 2012
;; MSG SIZE  rcvd: 487

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1470
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;qwest.com.			IN	SOA

;; AUTHORITY SECTION:
qwest.com.		172800	IN	NS	authns1.qwest.net.
qwest.com.		172800	IN	NS	authns2.qwest.net.

;; ADDITIONAL SECTION:
authns1.qwest.net.	172800	IN	A	63.150.72.4
authns2.qwest.net.	172800	IN	A	208.44.130.120

;; Query time: 344 msec
;; SERVER: 192.52.178.30#53(k.gtld-servers.net)
;; WHEN: Wed May 23 00:52:00 2012
;; MSG SIZE  rcvd: 112

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1694
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;qwest.com.			IN	SOA

;; ANSWER SECTION:
qwest.com.		3600	IN	SOA	authns1.qwest.net. dns-admin.qwestip.net. 2120502005 10800 3600 604800 3600

;; AUTHORITY SECTION:
qwest.com.		3600	IN	NS	authns1.qwest.net.
qwest.com.		3600	IN	NS	authns2.qwest.net.

;; ADDITIONAL SECTION:
authns1.qwest.net.	86400	IN	A	63.150.72.4
authns2.qwest.net.	86400	IN	A	208.44.130.120

;; Query time: 177 msec
;; SERVER: 63.150.72.4#53(authns1.qwest.net)
;; WHEN: Wed May 23 00:52:00 2012
;; MSG SIZE  rcvd: 166

HTTP

Looking for CNAME of www.qwest.com
Checking if there is a AAAA for www.qwest.com ... success.
Sending...

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

Reading ...

HTTP/1.1 301 Moved Permanently
Date: Tue, 22 May 2012 15:22:05 GMT
Server: Apache
Location: http://www.centurylink.com/
Vary: Accept-Encoding
Content-Type: text/html; charset=iso-8859-1

Accessed / [2001:428:b21:1:0:0:0:20] Response: HTTP/1.1 301 Moved Permanently
Redirecting to http://www.centurylink.com/
Sending...

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

Reading ...

HTTP/1.1 200 OK
Date: Tue, 22 May 2012 15:22:06 GMT
Server: Apache
Accept-Ranges: bytes
Cache-Control: max-age=0
Expires: Tue, 22 May 2012 15:22:06 GMT
Vary: Accept-Encoding,User-Agent
Content-Type: text/html

Accessed / [2001:428:b21:1:0:0:0:20] Response: HTTP/1.1 200 OK

SMTP

MX 20 sudnp798.qwest.com
Looking for AAAA on sudnp798.qwest.com
MX 20 suomp63i.qwest.com
Looking for AAAA on suomp63i.qwest.com
MX 20 suomp62i-sec.qwest.com
Looking for AAAA on suomp62i-sec.qwest.com
Connecting to 2001:428:b21:1:0:0:0:21 ... done.
220 suomp62i.qintra.com ESMTP Sendmail 8.14.4/8.14.4; Tue, 22 May 2012 10:08:58 -0500 (CDT)
250-suomp62i.qintra.com Hello suzuka.mrp.net [IPv6:2001:44b8:60::2], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE 15000000
250-DSN
250-ETRN
250-STARTTLS
250-DELIVERBY
250 HELP

DNS

Looking for AAAA of NS authns2.qwest.net
No AAAA record for authns2.qwest.net
Looking for AAAA of NS authns1.qwest.net
No AAAA record for authns1.qwest.net

NTP

Looking for an A record for ntp.qwest.com
Looking for an A record for clock.qwest.com
Looking for an A record for time.qwest.com
Looking for an A record for chime.qwest.com

XMPP

Looking for a SRV record for _xmpp-client._tcp.qwest.com
Looking for a SRV record for _xmpp-server._tcp.qwest.com

Last Updated: Tue May 22 15:22:07 2012 UTC