Check that www.squareup.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 squareup.com soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 268
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			206066	IN	NS	k.root-servers.net.
.			206066	IN	NS	j.root-servers.net.
.			206066	IN	NS	g.root-servers.net.
.			206066	IN	NS	c.root-servers.net.
.			206066	IN	NS	m.root-servers.net.
.			206066	IN	NS	l.root-servers.net.
.			206066	IN	NS	h.root-servers.net.
.			206066	IN	NS	b.root-servers.net.
.			206066	IN	NS	a.root-servers.net.
.			206066	IN	NS	e.root-servers.net.
.			206066	IN	NS	d.root-servers.net.
.			206066	IN	NS	i.root-servers.net.
.			206066	IN	NS	f.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	75389	IN	A	198.41.0.4
a.root-servers.net.	75389	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	33653	IN	A	192.228.79.201
c.root-servers.net.	421437	IN	A	192.33.4.12
d.root-servers.net.	379786	IN	A	128.8.10.90
d.root-servers.net.	379786	IN	AAAA	2001:500:2d::d
e.root-servers.net.	30973	IN	A	192.203.230.10
f.root-servers.net.	76260	IN	A	192.5.5.241
f.root-servers.net.	381136	IN	AAAA	2001:500:2f::f
g.root-servers.net.	76924	IN	A	192.112.36.4
h.root-servers.net.	33962	IN	A	128.63.2.53
h.root-servers.net.	33962	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	75496	IN	A	192.36.148.17
i.root-servers.net.	75496	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 17:03:35 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1139
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

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

;; AUTHORITY SECTION:
com.			172800	IN	NS	c.gtld-servers.net.
com.			172800	IN	NS	j.gtld-servers.net.
com.			172800	IN	NS	b.gtld-servers.net.
com.			172800	IN	NS	e.gtld-servers.net.
com.			172800	IN	NS	h.gtld-servers.net.
com.			172800	IN	NS	k.gtld-servers.net.
com.			172800	IN	NS	d.gtld-servers.net.
com.			172800	IN	NS	i.gtld-servers.net.
com.			172800	IN	NS	a.gtld-servers.net.
com.			172800	IN	NS	g.gtld-servers.net.
com.			172800	IN	NS	m.gtld-servers.net.
com.			172800	IN	NS	l.gtld-servers.net.
com.			172800	IN	NS	f.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: 125 msec
;; SERVER: 2001:dc3::35#53(m.root-servers.net)
;; WHEN: Tue May 22 17:03:35 2012
;; MSG SIZE  rcvd: 490

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1192
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 4

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

;; AUTHORITY SECTION:
squareup.com.		172800	IN	NS	ns5.dnsmadeeasy.com.
squareup.com.		172800	IN	NS	ns6.dnsmadeeasy.com.
squareup.com.		172800	IN	NS	ns7.dnsmadeeasy.com.

;; ADDITIONAL SECTION:
ns5.dnsmadeeasy.com.	172800	IN	A	208.94.148.13
ns5.dnsmadeeasy.com.	172800	IN	AAAA	2600:1800:5::1
ns6.dnsmadeeasy.com.	172800	IN	A	208.80.124.13
ns7.dnsmadeeasy.com.	172800	IN	A	208.80.126.13

;; Query time: 132 msec
;; SERVER: 2001:503:a83e::2:30#53(a.gtld-servers.net)
;; WHEN: Tue May 22 17:03:36 2012
;; MSG SIZE  rcvd: 172

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 158
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 0

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

;; ANSWER SECTION:
squareup.com.		3600	IN	SOA	ns6.dnsmadeeasy.com. ops+dns.squareup.com. 2012051700 28800 3600 604800 3600

;; AUTHORITY SECTION:
squareup.com.		3600	IN	NS	ns7.dnsmadeeasy.com.
squareup.com.		3600	IN	NS	ns6.dnsmadeeasy.com.
squareup.com.		3600	IN	NS	ns5.dnsmadeeasy.com.

;; Query time: 178 msec
;; SERVER: 208.80.124.13#53(ns6.dnsmadeeasy.com)
;; WHEN: Tue May 22 17:03:36 2012
;; MSG SIZE  rcvd: 140

HTTP

Looking for CNAME of www.squareup.com
Checking if there is a AAAA for www.squareup.com ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.squareup.com aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1710
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
www.squareup.com.	3599	IN	CNAME	squareup.com.

;; AUTHORITY SECTION:
squareup.com.		3600	IN	SOA	ns6.dnsmadeeasy.com. ops+dns.squareup.com. 2012051700 28800 3600 604800 3600

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 17:03:37 2012
;; MSG SIZE  rcvd: 108

Checking other options ... failed too.

SMTP

MX 10 aspmx.l.google.com
Looking for AAAA on aspmx.l.google.com
MX 10 alt1.aspmx.l.google.com
Looking for AAAA on alt1.aspmx.l.google.com
MX 10 alt2.aspmx.l.google.com
Looking for AAAA on alt2.aspmx.l.google.com
MX 10 aspmx2.googlemail.com
Looking for AAAA on aspmx2.googlemail.com
MX 10 aspmx3.googlemail.com
Looking for AAAA on aspmx3.googlemail.com
MX 10 aspmx4.googlemail.com
Looking for AAAA on aspmx4.googlemail.com
MX 10 aspmx5.googlemail.com
Looking for AAAA on aspmx5.googlemail.com

DNS

Looking for AAAA of NS ns7.dnsmadeeasy.com
No AAAA record for ns7.dnsmadeeasy.com
Looking for AAAA of NS ns6.dnsmadeeasy.com
No AAAA record for ns6.dnsmadeeasy.com
Looking for AAAA of NS ns5.dnsmadeeasy.com
Querying 2600:1800:5:0:0:0:0:1 for SOA of squareup.com over IPv6 ... successful!

NTP

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

XMPP

Looking for a SRV record for _xmpp-client._tcp.squareup.com
Found XMPP client talk.l.google.com (5, 5222)
Trying to connect to 74.125.31.125 on 5222 ... Connection succeeded
Trying to connect to 2404:6800:800b:0:0:0:0:7d on 5222 ... Connection succeeded

Looking for a SRV record for _xmpp-server._tcp.squareup.com
Found XMPP server xmpp-server.l.google.com (5, 5269)
Trying to connect to 74.125.31.125 on 5269 ... Connection succeeded
Found XMPP server xmpp-server2.l.google.com (20, 5269)
Trying to connect to 74.125.134.125 on 5269 ... Connection succeeded
Found XMPP server xmpp-server3.l.google.com (20, 5269)
Trying to connect to 173.194.68.125 on 5269 ... Connection succeeded
Found XMPP server xmpp-server4.l.google.com (20, 5269)
Trying to connect to 74.125.131.125 on 5269 ... Connection succeeded
Found XMPP server xmpp-server1.l.google.com (20, 5269)
Trying to connect to 74.125.142.125 on 5269 ... Connection succeeded

Last Updated: Tue May 22 07:33:42 2012 UTC