Check that www.soton.ac.uk 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 soton.ac.uk soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1529
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			215960	IN	NS	l.root-servers.net.
.			215960	IN	NS	d.root-servers.net.
.			215960	IN	NS	g.root-servers.net.
.			215960	IN	NS	h.root-servers.net.
.			215960	IN	NS	i.root-servers.net.
.			215960	IN	NS	a.root-servers.net.
.			215960	IN	NS	k.root-servers.net.
.			215960	IN	NS	j.root-servers.net.
.			215960	IN	NS	c.root-servers.net.
.			215960	IN	NS	e.root-servers.net.
.			215960	IN	NS	m.root-servers.net.
.			215960	IN	NS	b.root-servers.net.
.			215960	IN	NS	f.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	85283	IN	A	198.41.0.4
a.root-servers.net.	85283	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	43547	IN	A	192.228.79.201
c.root-servers.net.	431331	IN	A	192.33.4.12
d.root-servers.net.	389680	IN	A	128.8.10.90
d.root-servers.net.	389680	IN	AAAA	2001:500:2d::d
e.root-servers.net.	40867	IN	A	192.203.230.10
f.root-servers.net.	86154	IN	A	192.5.5.241
f.root-servers.net.	391030	IN	AAAA	2001:500:2f::f
g.root-servers.net.	86818	IN	A	192.112.36.4
h.root-servers.net.	43856	IN	A	128.63.2.53
h.root-servers.net.	43856	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	85390	IN	A	192.36.148.17
i.root-servers.net.	85390	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 14:18:41 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1887
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 11, ADDITIONAL: 14

;; QUESTION SECTION:
;soton.ac.uk.			IN	SOA

;; AUTHORITY SECTION:
uk.			172800	IN	NS	ns1.nic.uk.
uk.			172800	IN	NS	ns2.nic.uk.
uk.			172800	IN	NS	ns3.nic.uk.
uk.			172800	IN	NS	ns4.nic.uk.
uk.			172800	IN	NS	ns5.nic.uk.
uk.			172800	IN	NS	ns6.nic.uk.
uk.			172800	IN	NS	ns7.nic.uk.
uk.			172800	IN	NS	nsa.nic.uk.
uk.			172800	IN	NS	nsb.nic.uk.
uk.			172800	IN	NS	nsc.nic.uk.
uk.			172800	IN	NS	nsd.nic.uk.

;; ADDITIONAL SECTION:
ns1.nic.uk.		172800	IN	A	195.66.240.130
ns2.nic.uk.		172800	IN	A	217.79.164.131
ns3.nic.uk.		172800	IN	A	213.219.13.131
ns4.nic.uk.		172800	IN	A	194.83.244.131
ns5.nic.uk.		172800	IN	A	213.246.167.131
ns6.nic.uk.		172800	IN	A	213.248.254.130
ns7.nic.uk.		172800	IN	A	212.121.40.130
nsa.nic.uk.		172800	IN	A	156.154.100.3
nsb.nic.uk.		172800	IN	A	156.154.101.3
nsc.nic.uk.		172800	IN	A	156.154.102.3
nsd.nic.uk.		172800	IN	A	156.154.103.3
ns1.nic.uk.		172800	IN	AAAA	2a01:40:1001:35::2
ns4.nic.uk.		172800	IN	AAAA	2001:630:181:35::83
nsa.nic.uk.		172800	IN	AAAA	2001:502:ad09::3

;; Query time: 48 msec
;; SERVER: 2001:7fd::1#53(k.root-servers.net)
;; WHEN: Tue May 22 14:18:41 2012
;; MSG SIZE  rcvd: 491

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1770
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 7, ADDITIONAL: 0

;; QUESTION SECTION:
;soton.ac.uk.			IN	SOA

;; AUTHORITY SECTION:
ac.uk.			172800	IN	NS	ns1.surfnet.nl.
ac.uk.			172800	IN	NS	ns0.ja.net.
ac.uk.			172800	IN	NS	ns4.ja.net.
ac.uk.			172800	IN	NS	auth03.ns.uu.net.
ac.uk.			172800	IN	NS	ws-fra1.win-ip.dfn.de.
ac.uk.			172800	IN	NS	ns3.ja.net.
ac.uk.			172800	IN	NS	ns2.ja.net.

;; Query time: 223 msec
;; SERVER: 156.154.101.3#53(nsb.nic.uk)
;; WHEN: Tue May 22 14:18:41 2012
;; MSG SIZE  rcvd: 197

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1650
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;soton.ac.uk.			IN	SOA

;; AUTHORITY SECTION:
soton.ac.uk.		86400	IN	NS	dns0.soton.ac.uk.
soton.ac.uk.		86400	IN	NS	dns0.brad.ac.uk.
soton.ac.uk.		86400	IN	NS	dns1.soton.ac.uk.
soton.ac.uk.		86400	IN	NS	dns1.brad.ac.uk.

;; ADDITIONAL SECTION:
dns0.brad.ac.uk.	86400	IN	A	143.53.238.4
dns0.soton.ac.uk.	86400	IN	A	152.78.128.78
dns1.brad.ac.uk.	86400	IN	A	143.53.238.5
dns1.soton.ac.uk.	86400	IN	A	152.78.128.79

;; Query time: 349 msec
;; SERVER: 193.174.75.178#53(ws-fra1.win-ip.dfn.de)
;; WHEN: Tue May 22 14:18:41 2012
;; MSG SIZE  rcvd: 174

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;soton.ac.uk.			IN	SOA

;; ANSWER SECTION:
soton.ac.uk.		86400	IN	SOA	dns0.soton.ac.uk. network.soton.ac.uk. 2005199794 14400 7200 604800 86400

;; AUTHORITY SECTION:
soton.ac.uk.		86400	IN	NS	dns0.soton.ac.uk.
soton.ac.uk.		86400	IN	NS	dns1.soton.ac.uk.
soton.ac.uk.		86400	IN	NS	dns0.brad.ac.uk.
soton.ac.uk.		86400	IN	NS	dns1.brad.ac.uk.

;; ADDITIONAL SECTION:
dns0.brad.ac.uk.	86400	IN	A	143.53.238.4
dns0.soton.ac.uk.	86400	IN	A	152.78.128.78
dns1.brad.ac.uk.	86400	IN	A	143.53.238.5
dns1.soton.ac.uk.	86400	IN	A	152.78.128.79

;; Query time: 293 msec
;; SERVER: 143.53.238.5#53(dns1.brad.ac.uk)
;; WHEN: Tue May 22 14:18:42 2012
;; MSG SIZE  rcvd: 218

HTTP

Looking for CNAME of www.soton.ac.uk
Checking if there is a AAAA for www.soton.ac.uk ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.soton.ac.uk aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1325
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.soton.ac.uk.		IN	AAAA

;; AUTHORITY SECTION:
soton.ac.uk.		10799	IN	SOA	dns0.soton.ac.uk. network.soton.ac.uk. 2005199794 14400 7200 604800 86400

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 14:18:43 2012
;; MSG SIZE  rcvd: 82

Checking other options ... failed too.

SMTP

MX 10 mx.soton.ac.uk
Looking for AAAA on mx.soton.ac.uk

DNS

Looking for AAAA of NS dns1.brad.ac.uk
No AAAA record for dns1.brad.ac.uk
Looking for AAAA of NS dns0.soton.ac.uk
No AAAA record for dns0.soton.ac.uk
Looking for AAAA of NS dns0.brad.ac.uk
No AAAA record for dns0.brad.ac.uk
Looking for AAAA of NS dns1.soton.ac.uk
No AAAA record for dns1.soton.ac.uk

NTP

Looking for an A record for ntp.soton.ac.uk
Looking for an A record for clock.soton.ac.uk
Looking for an A record for time.soton.ac.uk
Looking for an A record for chime.soton.ac.uk

XMPP

Looking for a SRV record for _xmpp-client._tcp.soton.ac.uk
Looking for a SRV record for _xmpp-server._tcp.soton.ac.uk

Last Updated: Tue May 22 04:48:47 2012 UTC