Check that www.purdue.edu 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 purdue.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1223
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			174265	IN	NS	k.root-servers.net.
.			174265	IN	NS	j.root-servers.net.
.			174265	IN	NS	a.root-servers.net.
.			174265	IN	NS	i.root-servers.net.
.			174265	IN	NS	f.root-servers.net.
.			174265	IN	NS	b.root-servers.net.
.			174265	IN	NS	h.root-servers.net.
.			174265	IN	NS	g.root-servers.net.
.			174265	IN	NS	m.root-servers.net.
.			174265	IN	NS	c.root-servers.net.
.			174265	IN	NS	d.root-servers.net.
.			174265	IN	NS	e.root-servers.net.
.			174265	IN	NS	l.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	43588	IN	A	198.41.0.4
a.root-servers.net.	43588	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	1852	IN	A	192.228.79.201
c.root-servers.net.	389636	IN	A	192.33.4.12
d.root-servers.net.	347985	IN	A	128.8.10.90
d.root-servers.net.	347985	IN	AAAA	2001:500:2d::d
e.root-servers.net.	603977	IN	A	192.203.230.10
f.root-servers.net.	44459	IN	A	192.5.5.241
f.root-servers.net.	349335	IN	AAAA	2001:500:2f::f
g.root-servers.net.	45123	IN	A	192.112.36.4
h.root-servers.net.	2161	IN	A	128.63.2.53
h.root-servers.net.	2161	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	43695	IN	A	192.36.148.17
i.root-servers.net.	43695	IN	AAAA	2001:7fe::53

;; Query time: 14 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 01:53:36 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1172
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

;; QUESTION SECTION:
;purdue.edu.			IN	SOA

;; AUTHORITY SECTION:
edu.			172800	IN	NS	c.edu-servers.net.
edu.			172800	IN	NS	a.edu-servers.net.
edu.			172800	IN	NS	l.edu-servers.net.
edu.			172800	IN	NS	d.edu-servers.net.
edu.			172800	IN	NS	f.edu-servers.net.
edu.			172800	IN	NS	g.edu-servers.net.

;; ADDITIONAL SECTION:
a.edu-servers.net.	172800	IN	A	192.5.6.30
c.edu-servers.net.	172800	IN	A	192.26.92.30
d.edu-servers.net.	172800	IN	A	192.31.80.30
f.edu-servers.net.	172800	IN	A	192.35.51.30
g.edu-servers.net.	172800	IN	A	192.42.93.30
l.edu-servers.net.	172800	IN	A	192.41.162.30
g.edu-servers.net.	172800	IN	AAAA	2001:503:cc2c::2:36

;; Query time: 180 msec
;; SERVER: 192.228.79.201#53(b.root-servers.net)
;; WHEN: Wed May 23 01:53:37 2012
;; MSG SIZE  rcvd: 263

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 612
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;purdue.edu.			IN	SOA

;; AUTHORITY SECTION:
purdue.edu.		172800	IN	NS	harbor.ecn.purdue.edu.
purdue.edu.		172800	IN	NS	ns.purdue.edu.
purdue.edu.		172800	IN	NS	pendragon.cs.purdue.edu.
purdue.edu.		172800	IN	NS	ns1.rice.edu.

;; ADDITIONAL SECTION:
harbor.ecn.purdue.edu.	172800	IN	A	128.46.154.76
ns.purdue.edu.		172800	IN	A	128.210.11.5
pendragon.cs.purdue.edu. 172800	IN	A	128.10.2.5
ns1.rice.edu.		172800	IN	A	128.42.209.32

;; Query time: 236 msec
;; SERVER: 192.31.80.30#53(d.edu-servers.net)
;; WHEN: Wed May 23 01:53:37 2012
;; MSG SIZE  rcvd: 184

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 951
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 4

;; QUESTION SECTION:
;purdue.edu.			IN	SOA

;; ANSWER SECTION:
purdue.edu.		3600	IN	SOA	nomenclator.itt.purdue.edu. hostmaster.ns.purdue.edu. 2012052025 10800 3600 3600000 86400

;; AUTHORITY SECTION:
purdue.edu.		3600	IN	NS	harbor.ecn.purdue.edu.
purdue.edu.		3600	IN	NS	ns.purdue.edu.
purdue.edu.		3600	IN	NS	ns2.purdue.edu.
purdue.edu.		3600	IN	NS	ns1.rice.edu.
purdue.edu.		3600	IN	NS	pendragon.cs.purdue.edu.
purdue.edu.		3600	IN	NS	ns2.rice.edu.

;; ADDITIONAL SECTION:
ns.purdue.edu.		3600	IN	A	128.210.11.5
ns2.purdue.edu.		3600	IN	A	128.210.11.57
harbor.ecn.purdue.edu.	86400	IN	A	128.46.154.76
pendragon.cs.purdue.edu. 86400	IN	A	128.10.2.5

;; Query time: 277 msec
;; SERVER: 128.10.2.5#53(pendragon.cs.purdue.edu)
;; WHEN: Wed May 23 01:53:37 2012
;; MSG SIZE  rcvd: 283

HTTP

Looking for CNAME of www.purdue.edu
Checking if there is a AAAA for www.purdue.edu ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.purdue.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 818
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.purdue.edu.			IN	AAAA

;; AUTHORITY SECTION:
www.purdue.edu.		10800	IN	SOA	nomenclator.itt.purdue.edu. hostmaster.ns.purdue.edu. 20 10800 3600 3600000 86400

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 01:53:38 2012
;; MSG SIZE  rcvd: 98

Checking other options ... failed too.

SMTP

MX 10 mta1.smtp.purdue.edu
Looking for AAAA on mta1.smtp.purdue.edu
MX 10 mta2.smtp.purdue.edu
Looking for AAAA on mta2.smtp.purdue.edu

DNS

Looking for AAAA of NS pendragon.cs.purdue.edu
No AAAA record for pendragon.cs.purdue.edu
Looking for AAAA of NS ns.purdue.edu
No AAAA record for ns.purdue.edu
Looking for AAAA of NS ns1.rice.edu
No AAAA record for ns1.rice.edu
Looking for AAAA of NS harbor.ecn.purdue.edu
No AAAA record for harbor.ecn.purdue.edu
Looking for AAAA of NS ns2.rice.edu
No AAAA record for ns2.rice.edu
Looking for AAAA of NS ns2.purdue.edu
No AAAA record for ns2.purdue.edu

NTP

Looking for an A record for ntp.purdue.edu
Looking for an A record for clock.purdue.edu
Looking for an A record for time.purdue.edu
Found an A or AAAA record. Now looking for a AAAA.
Cannot find a AAAA record for time.purdue.edu
Cannot find a AAAA record for time.ipv6.purdue.edu

XMPP

Looking for a SRV record for _xmpp-client._tcp.purdue.edu
Looking for a SRV record for _xmpp-server._tcp.purdue.edu

Last Updated: Tue May 22 16:23:43 2012 UTC