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ext-dns-1.cern.ch checked at 2025-12-21T03:06:15.071Z 5058ms 18/18/33 55% R:6 allDone:false timedOut:true

ext-dns-1.cern.ch

A2001:1458:1:1::5
A192.65.187.5

cern.ch

NSext-dns-1.cern.ch
NSext-dns-2.cern.ch
NSscsnms.switch.ch
MXcern-ch.mail.protection.outlook.com
A2001:1458:d00:3c::100:2f9
A188.184.77.250
rank #1225 globally
rank #5 in the tld

PTR for

5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.1.0.0.0.8.5.4.1.1.0.0.2.ip6.arpa
5.187.65.192.in-addr.arpa

NS for

hse.cern
189.65.192.in-addr.arpa
245.91.192.in-addr.arpa
192.65.192.in-addr.arpa
db-lb-162.cern.ch
indico-lb.cern.ch
db-lb-123.cern.ch
138.137.in-addr.arpa
drupal-apps-shard-1.cern.ch
157.16.192.in-addr.arpa
166.16.192.in-addr.arpa
8.5.4.1.1.0.0.2.ip6.arpa
db-lb-139.cern.ch
184.188.in-addr.arpa
db-lb-185.cern.ch
indico-software.org
panda-lb.cern.ch
ipv6.cern.ch
239.91.192.in-addr.arpa
learn.cern
cernvm.cern
opendays.cern
paas-apps-shard-tn.cern.ch
db-lb-k8s-106.cern.ch
lhcathome-upload.cern.ch
244.91.192.in-addr.arpa
web.cern.ch
box.cern.ch
zenodo.eu
183.65.192.in-addr.arpa
236.91.192.in-addr.arpa
185.188.in-addr.arpa
db-lb-137.cern.ch
paas-apps-shard-4.cern.ch
inspirelb.cern.ch
246.91.192.in-addr.arpa
paas-apps-lb-1.cern.ch
paas-apps-lb-tn.cern.ch
158.16.192.in-addr.arpa
cms.cern
europeanstrategy.cern
twikiai.cern.ch
getindico.io
cern.org
196.65.192.in-addr.arpa
lxplus.cern.ch
155.16.192.in-addr.arpa
testbox.cern.ch
db-lb-1236.cern.ch
home.cern
db-lb-131.cern.ch
193.65.192.in-addr.arpa
190.65.192.in-addr.arpa
cern.ch
db-lb-196.cern.ch
lhcathome.cern.ch
161.16.192.in-addr.arpa
197.65.192.in-addr.arpa
paas-apps-lb-tncrit.cern.ch
165.16.192.in-addr.arpa
db-lb-122.cern.ch
visit.cern
zenodo.net
db-lb-129.cern.ch
isseg.eu
191.65.192.in-addr.arpa
db-lb-134.cern.ch
clear.cern
cixp.org
cernbox.cern.ch
piwiklb.cern.ch
cixp.ch
scienceinschool.org
243.91.192.in-addr.arpa
www.cern
188.65.192.in-addr.arpa
cixp.net
openlab.cern
linuxsoft.cern.ch
186.65.192.in-addr.arpa
184.65.192.in-addr.arpa
187.65.192.in-addr.arpa
getindico.com
160.16.192.in-addr.arpa
united-states.cern
stratum-one-lbp.cern.ch
its.cern.ch
webeos-apps-lb-1.cern.ch
141.128.in-addr.arpa
cmsdbfe.cern.ch
db-lb-145.cern.ch
voisins.cern
webeos-apps-shard-1.cern.ch
240.91.192.in-addr.arpa
arts.cern
drupal-apps-lb-1.cern.ch
cernvm-lb.cern.ch
paas-apps-shard-1.cern.ch
156.16.192.in-addr.arpa
careers.cern
invenio-software.org
cds-lb.cern.ch
142.128.in-addr.arpa
compass.cern

AI analysis

ext-dns-1.cern.ch serves as a name server for hse.cern, 189.65.192.in-addr.arpa, 245.91.192.in-addr.arpa, 192.65.192.in-addr.arpa, db-lb-162.cern.ch and hundreds of other domains.

ext-dns-2.cern.ch and scsnms.switch.ch are commonly used as name servers together with ext-dns-1.cern.ch.

ext-dns-1.cern.ch points to two IPs: 2001:1458:1:1::5 and 192.65.187.5.