go
b.ns.joker.com has one IP number , but the reverse is ext2-1.server.csl.de. b.ns.scourbase.net cnames to this hostname. ext2-1.server.csl.de point to the same IP. aby.com, qmx.biz, yakk.net, besh.com, jdmz.net and at least 100 other hosts use this as a nameserver. ns.joker.com has one IP number. b.ns.joker.com is hosted on a server in United States.

b.ns.joker.com
a records
 
+ 66.197.237.21 66.197.128.0/17 AS21788 ext2-1.server.csl.de
+ --- ext2-1.server.csl.de

ns.joker.com
a records
 
+ 194.245.101.41 194.245.0.0/16 AS5517  
+ ---  
ip numbers of host
66.197.237.21
ptrs of ip numbers
ext2-1.server.csl.de
ip numbers using ptr to this host
159.25.97.69
194.245.101.19
hostnames sharing ip with a-records
ext2-1.server.csl.de
hostnames pointing here by cname
b.ns.scourbase.net
domains using this as nameserver
40nightsphotography.com
aakin.net
abhdtv.com
aby.com
acnph.com
adgtucson.com
agency-modeling.com
alanwest.com
aliceteenmodel.info
alphasigma.com
am-fanclub.com
ascoreklama.com
askmorris.org
auerbachcooper.com
azium.com
bbptranslations.com
berliner-praxen.de
besh.com
bestdownloads.de
bloggersinamsterdam.com
bogonel.info
broox.com
bustermcleod.com
c-camp.org
campingigueldo.com
chameleon.net
ciudadlinux.com
coffin.org
cofradia.com
csittl.com
datendelphin.net
ella-model.com
elwolfie.com
emccsoft.com
feelies.org
findinggrace.com
foraldesign.net
francy-model.com
freexion.net
gamahk.com
gatesandpartners.com
geek-nest.org
geovedi.com
gnerd.net
grotto-group.com
hagymasi.com
hameren.com
hermes-europe.org
herutus.net
hindiwood.com
hitrizmenki.com
hooligans.org
hublist.org
hyse.org
ibig.info
in-addr-arpa.net
intern.de
inveneo.org
itsuma.net
jdmz.net
joshstuart.com
joshuastuart.com
lightspeeddesign.com
linux-user.net
linuxperu.com
magentabox.com
marketsentinel.com
mattdunford.com
mindhaus.com
molde.org
mystify.org
nordlan.org
onlyns.net
openbg.com
parkanimals.com
polarsystems.com
postcheck.net
prokudos.com
puhosboard.com
puredj.com
purewafer.com
qmx.biz
randomoracle.net
redwoodvirtual.com
rezolution.org
ritvala.com
robupham.com
rsiegler.org
samphier.com
sandrateenmodel.com
sandvika.net
scgrad.com
sec-area.com
secureid.org
server4.biz
server52.com
sexy-admin.de
sieni.info
skye-model.com
sohoexchange.biz
southeastsound.com
southlandsheltierescue.com
spencered.org
synthpop.net
tag-board.com
tallented.org
teknonett.com
testplant.net
thegw.net
time-mail.net
trackchair.net
triadis.com
trontronic.com
virginia-model.info
wconsulting.net
willeymodels.com
willeystudios.com
wizzowidgetworks.com
yakk.net
zotikos.com
used as nameserver but missing in parent delegation
baseley.net
clevver.net
indylabs.net
prv8.net
used as nameserver but missing in zone
alternactiva.net
alwyn.net
amoryn.net
anarchistcookbook.net
andyzax.net
babylandia.net
bagsie.net
beijing-china-hotels.net
blctechnology.net
brookland-studio.net
brookland-studios.net
brooklandstudio.net
brooklandstudios.net
cedarsofsonoma.net
chaillestovall.net
comradesoftware.net
concrete-engraving.net
concreteengraving.net
creditcardnation.net
critical247.net
cullinancentenary.net
cullinandiamondcentenary.net
cullinandiamondtrading.net
digitalgrin.net
djstatic.net
djupsjo.net
dolphinscience.net
dominionaccess.net
donmcculloughdodge.net
dotgo.net
dvddatarecovery.net
easymaps.net
ecowarriors.net
em-tipp.net
engraved-concrete.net
euskaraosoa.net
factoryshops.net
globalriskgroup.net
globalsafetygroup.net
greeninfo.net
guaranteedtoprankings.net
hautes-pyrenees.net
hiddendns.net
hiperfairs.net
hodgkinclose.net
hola-cuba.net
hqhq.net
huckingfilarious.net
ict23.net
instantbuddy.net
intiimi.net
iyow.net
jelangeraglobal.net
jenfrazier.net
johnjeffers.net
joyarennt.net
kansallismedia.net
kf2gv.net
kibristurkdevleti.net
lordosinvestments.com
maritimesearcher.net
markcullinandiamonds.net
maxproof.com
membercentral.net
memberdatabase.net
memberinfo.net
membersinfo.net
michaeljames.net
modelguides.net
mygolfinglife.net
mysportinglife.net
newdating.net
newenterprise.net
nofors.com
nofors.net
parrotrescue.net
pfuck.net
popio.net
prague3d.net
pribislavec.net
princessshool.net
psoe-asamblea.net
psoeasamblea.net
psoeasambleamadrid.net
pyrenees-atlantiques.net
redvolucion.net
risingsunart.net
risingsunkimono.net
risingsunsilk.net
risk-tec.net
saslaprincessestephaniedemonaco.net
shareacar.net
shaynapunim.net
slevogt.net
smuggmug.net
smuggmugg.net
smugmugg.net
smugsmug.net
smugsmugs.net
speech-recognition.net
state-edu.net
status247.net
statusmon.net
telis-finanz.net
theunitedcyprus.net
theunitedcyprusrepublic.net
travelstudy.net
tv2pc.net
ubiquinol.net
unotify.net
ventuscareers.net
vindicia.net
voyanceastrologie.net
xlut.net
xn--mbeldesign-ecb.net
xn--mbelshop-n4a.net