Check that www.att.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 att.com soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1536
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			6388	IN	NS	g.root-servers.net.
.			6388	IN	NS	e.root-servers.net.
.			6388	IN	NS	b.root-servers.net.
.			6388	IN	NS	k.root-servers.net.
.			6388	IN	NS	l.root-servers.net.
.			6388	IN	NS	c.root-servers.net.
.			6388	IN	NS	h.root-servers.net.
.			6388	IN	NS	m.root-servers.net.
.			6388	IN	NS	j.root-servers.net.
.			6388	IN	NS	f.root-servers.net.
.			6388	IN	NS	i.root-servers.net.
.			6388	IN	NS	d.root-servers.net.
.			6388	IN	NS	a.root-servers.net.

;; ADDITIONAL SECTION:
k.root-servers.net.	495906	IN	A	193.0.14.129
k.root-servers.net.	495906	IN	AAAA	2001:7fd::1
a.root-servers.net.	494380	IN	A	198.41.0.4
a.root-servers.net.	494380	IN	AAAA	2001:503:ba3e::2:30
c.root-servers.net.	195038	IN	A	192.33.4.12
d.root-servers.net.	191592	IN	A	128.8.10.90
d.root-servers.net.	191592	IN	AAAA	2001:500:2d::d
j.root-servers.net.	106650	IN	A	192.58.128.30
j.root-servers.net.	106650	IN	AAAA	2001:503:c27::2:30
b.root-servers.net.	452644	IN	A	192.228.79.201
e.root-servers.net.	449964	IN	A	192.203.230.10
i.root-servers.net.	494487	IN	A	192.36.148.17
i.root-servers.net.	494487	IN	AAAA	2001:7fe::53
f.root-servers.net.	495251	IN	A	192.5.5.241

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu May 17 20:40:24 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 71
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

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

;; AUTHORITY SECTION:
com.			172800	IN	NS	a.gtld-servers.net.
com.			172800	IN	NS	j.gtld-servers.net.
com.			172800	IN	NS	d.gtld-servers.net.
com.			172800	IN	NS	m.gtld-servers.net.
com.			172800	IN	NS	f.gtld-servers.net.
com.			172800	IN	NS	h.gtld-servers.net.
com.			172800	IN	NS	b.gtld-servers.net.
com.			172800	IN	NS	i.gtld-servers.net.
com.			172800	IN	NS	e.gtld-servers.net.
com.			172800	IN	NS	l.gtld-servers.net.
com.			172800	IN	NS	g.gtld-servers.net.
com.			172800	IN	NS	c.gtld-servers.net.
com.			172800	IN	NS	k.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: 126 msec
;; SERVER: 2001:dc3::35#53(m.root-servers.net)
;; WHEN: Thu May 17 20:40:24 2012
;; MSG SIZE  rcvd: 485

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2016
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3

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

;; AUTHORITY SECTION:
att.com.		172800	IN	NS	ns3.attdns.com.
att.com.		172800	IN	NS	ns2.attdns.com.
att.com.		172800	IN	NS	ns1.attdns.com.

;; ADDITIONAL SECTION:
ns3.attdns.com.		172800	IN	A	144.160.20.47
ns2.attdns.com.		172800	IN	A	144.160.128.140
ns1.attdns.com.		172800	IN	A	144.160.112.22

;; Query time: 349 msec
;; SERVER: 192.52.178.30#53(k.gtld-servers.net)
;; WHEN: Thu May 17 20:40:25 2012
;; MSG SIZE  rcvd: 134

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 355
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4

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

;; ANSWER SECTION:
att.com.		14400	IN	SOA	ns0.attdns.com. eiss-dns.att.com. 2012051501 3600 1800 2592000 14400

;; AUTHORITY SECTION:
att.com.		3600	IN	NS	ns2.attdns.com.
att.com.		3600	IN	NS	ns1.attdns.com.
att.com.		3600	IN	NS	ns3.attdns.com.
att.com.		3600	IN	NS	ns4.attdns.com.

;; ADDITIONAL SECTION:
ns1.attdns.com.		28800	IN	A	144.160.112.22
ns2.attdns.com.		28800	IN	A	144.160.128.140
ns3.attdns.com.		28800	IN	A	144.160.20.47
ns4.attdns.com.		28800	IN	A	144.160.229.11

;; Query time: 231 msec
;; SERVER: 144.160.20.47#53(ns3.attdns.com)
;; WHEN: Thu May 17 20:40:25 2012
;; MSG SIZE  rcvd: 217

HTTP

Looking for CNAME of www.att.com
Warning: Might be out sourced to a web service.
Checking if there is a AAAA for www.att.com ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.att.com aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1002
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.att.com.			IN	AAAA

;; ANSWER SECTION:
www.att.com.		300	IN	CNAME	www.att.com.edgekey.net.
www.att.com.edgekey.net. 7605	IN	CNAME	e2318.c.akamaiedge.net.

;; AUTHORITY SECTION:
c.akamaiedge.net.	1000	IN	SOA	n0c.akamaiedge.net. hostmaster.akamai.com. 1337253025 1000 1000 1000 1800

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu May 17 20:40:25 2012
;; MSG SIZE  rcvd: 157

Checking other options ... failed too.

SMTP

MX 10 grid1i-ent.seg.att.com
Looking for AAAA on grid1i-ent.seg.att.com
MX 10 grid2i-ent.seg.att.com
Looking for AAAA on grid2i-ent.seg.att.com

DNS

Looking for AAAA of NS ns1.attdns.com
No AAAA record for ns1.attdns.com
Looking for AAAA of NS ns4.attdns.com
No AAAA record for ns4.attdns.com
Looking for AAAA of NS ns2.attdns.com
No AAAA record for ns2.attdns.com
Looking for AAAA of NS ns3.attdns.com
No AAAA record for ns3.attdns.com

NTP

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

XMPP

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

Last Updated: Thu May 17 11:10:31 2012 UTC