Check that www.caltech.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 caltech.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 565
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; AUTHORITY SECTION:
.			3600000	IN	NS	A.ROOT-SERVERS.NET.
.			3600000	IN	NS	F.ROOT-SERVERS.NET.
.			3600000	IN	NS	I.ROOT-SERVERS.NET.
.			3600000	IN	NS	K.ROOT-SERVERS.NET.
.			3600000	IN	NS	C.ROOT-SERVERS.NET.
.			3600000	IN	NS	B.ROOT-SERVERS.NET.
.			3600000	IN	NS	E.ROOT-SERVERS.NET.
.			3600000	IN	NS	G.ROOT-SERVERS.NET.
.			3600000	IN	NS	L.ROOT-SERVERS.NET.
.			3600000	IN	NS	D.ROOT-SERVERS.NET.
.			3600000	IN	NS	H.ROOT-SERVERS.NET.
.			3600000	IN	NS	J.ROOT-SERVERS.NET.
.			3600000	IN	NS	M.ROOT-SERVERS.NET.

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	480110	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	480110	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	438374	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	180768	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	177322	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	177322	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	435694	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	480981	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	176717	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	481645	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	438683	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	438683	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	480217	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	480217	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 00:38:14 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1583
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

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

;; AUTHORITY SECTION:
edu.			172800	IN	NS	a.edu-servers.net.
edu.			172800	IN	NS	c.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.
edu.			172800	IN	NS	l.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: 23 msec
;; SERVER: 192.203.230.10#53(E.ROOT-SERVERS.NET)
;; WHEN: Fri May 18 00:38:14 2012
;; MSG SIZE  rcvd: 267

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 600
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 4

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

;; AUTHORITY SECTION:
caltech.edu.		172800	IN	NS	tybalt.caltech.edu.
caltech.edu.		172800	IN	NS	nsx.lbl.gov.
caltech.edu.		172800	IN	NS	mercutio.ni.caltech.edu.
caltech.edu.		172800	IN	NS	ns5.capnet.state.tx.us.
caltech.edu.		172800	IN	NS	tepid.ni.caltech.edu.
caltech.edu.		172800	IN	NS	ns11.tex-an.net.

;; ADDITIONAL SECTION:
tybalt.caltech.edu.	172800	IN	A	131.215.139.100
mercutio.ni.caltech.edu. 172800	IN	A	131.215.254.99
tepid.ni.caltech.edu.	172800	IN	A	131.215.254.100
ns11.tex-an.net.	172800	IN	A	204.65.222.236

;; Query time: 247 msec
;; SERVER: 192.5.6.30#53(a.edu-servers.net)
;; WHEN: Fri May 18 00:38:14 2012
;; MSG SIZE  rcvd: 250

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 723
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 3

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

;; ANSWER SECTION:
caltech.edu.		43200	IN	SOA	mercutio.caltech.edu. hostmaster.caltech.edu. 2012051619 10800 1800 3600000 43200

;; AUTHORITY SECTION:
caltech.edu.		43200	IN	NS	tepid.ni.caltech.edu.
caltech.edu.		43200	IN	NS	ns11.tex-an.net.
caltech.edu.		43200	IN	NS	nsx.lbl.gov.
caltech.edu.		43200	IN	NS	mercutio.ni.caltech.edu.
caltech.edu.		43200	IN	NS	ns5.capnet.state.tx.us.
caltech.edu.		43200	IN	NS	tybalt.caltech.edu.

;; ADDITIONAL SECTION:
tepid.ni.caltech.edu.	43200	IN	A	131.215.254.100
tybalt.caltech.edu.	43200	IN	A	131.215.139.100
mercutio.ni.caltech.edu. 43200	IN	A	131.215.254.99

;; Query time: 179 msec
;; SERVER: 131.215.254.99#53(mercutio.ni.caltech.edu)
;; WHEN: Fri May 18 00:38:15 2012
;; MSG SIZE  rcvd: 290

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.caltech.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1084
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
www.caltech.edu.	299	IN	CNAME	caltech-prod-website-1-1844262855.us-west-1.elb.amazonaws.com.

;; AUTHORITY SECTION:
caltech-prod-website-1-1844262855.us-west-1.elb.amazonaws.com. 60 IN SOA ns-944.amazon.com. root.amazon.com. 1337267272 3600 900 7776000 60

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 00:38:16 2012
;; MSG SIZE  rcvd: 163

Checking other options ... failed too.

SMTP

MX 3 mail-incoming.caltech.edu
Looking for AAAA on mail-incoming.caltech.edu

DNS

Looking for AAAA of NS mercutio.ni.caltech.edu
No AAAA record for mercutio.ni.caltech.edu
Looking for AAAA of NS ns5.capnet.state.tx.us
No AAAA record for ns5.capnet.state.tx.us
Looking for AAAA of NS nsx.lbl.gov
Querying 2620:83:8000:140:0:0:0:3 for SOA of caltech.edu over IPv6 ... successful!
Looking for AAAA of NS tybalt.caltech.edu
No AAAA record for tybalt.caltech.edu
Looking for AAAA of NS tepid.ni.caltech.edu
No AAAA record for tepid.ni.caltech.edu
Looking for AAAA of NS ns11.tex-an.net
No AAAA record for ns11.tex-an.net

NTP

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

XMPP

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

Last Updated: Thu May 17 15:08:21 2012 UTC