environment.cern - dns.ninja

environment.cern

DNSSEC⚠️ Not signed
A2001:1458:201:8b::100:1c8🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research
PTRlbaas-ed6043ec-be11-40f8-b8b7-ec7cedb5fdd9.cern.ch
A137.138.6.31🇨🇭 CERN137.138.0.0/16 -LAN1
NSext-dns-1.cern.ch ⭐
A2001:1458:1:1::5🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research
PTRext-dns-1.cern.ch
A192.65.187.5🇨🇭 CERN192.65.184.0/21 -BLK2
PTRext-dns-1.cern.ch
NSext-dns-2.cern.ch
A2001:1458:1:2::100:85🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research
PTRext-dns-2.cern.ch
A192.91.245.85🇨🇭 CERN192.91.244.0/23 - European Laboratory for Particle Physics CH-1211 Geneva 23, Switzerland
PTRext-dns-2.cern.ch
SOAext-dns-1.cern.chexternal-dns@cern.ch serial=3

cern

DNSSEC🔒 Signed (DS record present)
NSa0.nic.cern ⭐
NSa2.nic.cern
NSb0.nic.cern
NSc0.nic.cern
SOAa0.nic.cernhostmaster@donuts.email serial=1784820444

Same first word

environment.gov.au
environment.lv
environment.pe
environment.go.ke
environment.org.ly
environment.care
environment.ru
environment.pro
environment.gov.bm
environment.me
environment.blue
environment.co.uk
environment.guide
environment.ee
environment.gr
environment.gov.ie
environment.md
environment.co.kr
environment.ml
environment.google
environment.email
environment.vn
environment.co.il
environment.gov.ly
environment.si
environment.in
environment.ae
environment.today
environment.us
environment.be
environment.dk
environment.fi
environment.wa.gov.au
environment.gov.il
environment.ps
environment.qld.gov.au
environment.info
environment.hu
environment.group
environment.world
environment.gov.za
environment.gov.fj
environment.gov.mu
environment.sa.gov.au
environment.gov.ps
environment.ltd
environment.agency
environment.com
environment.new
environment.cern
environment.it
environment.lt
environment.no
environment.eu
environment.ch
environment.bm
environment.systems
environment.nl
environment.co.za
environment.life
environment.gov.pk
environment.my
environment.vic.gov.au
environment.govt.nz
environment.ge
environment.vision
environment.org
environment.at
environment.foundation
environment.gov.ng
environment.es
environment.gov.scot
environment.brussels
environment.gov.br
environment.technology
environment.co
environment.ie
environment.com.my
environment.services
environment.gov.ls
environment.gov.zw
environment.gov.mv
environment.gov.rw

DNS History

4 records (4 active, 0 former)

NSext-dns-1.cern.chext-dns-2.cern.chA137.138.6.312001:1458:201:8b::100:1c8
●NSext-dns-1.cern.ch2026-02-16 → 2026-07-23 · 2 obs
● 2026-02-16 09:50:16
● 2026-07-23 15:38:44
●NSext-dns-2.cern.ch2026-02-16 → 2026-07-23 · 2 obs
● 2026-02-16 09:50:16
● 2026-07-23 15:38:44
●A137.138.6.312026-02-16 → 2026-07-23 · 2 obs
● 2026-02-16 09:50:16
● 2026-07-23 15:38:44
●A2001:1458:201:8b::100:1c82026-02-16 → 2026-07-23 · 2 obs
● 2026-02-16 09:50:16
● 2026-07-23 15:38:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cerna0.nic.cern, a2.nic.cern, b0.nic.cern, c0.nic.cern8 records
environment.cernext-dns-1.cern.ch, ext-dns-2.cern.ch-

✅ Authoritative Response

Server:192.65.187.5

NS records: ext-dns-1.cern.ch, ext-dns-2.cern.ch

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for environment.cern (unsigned zone)

⏱️ Timing

Total: 2486ms | Queries: -

📄 Records

TypeCountSample Data
A1137.138.6.31
AAAA12001:1458:201:8b::100:1c8
NS2ext-dns-1.cern.ch, ext-dns-2.cern.ch
SOA1ext-dns-1.cern.ch external-dns.cern.ch

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a0.nic.cern, a0.nic.cern, a2.nic.cern...)

Analysis

IP Addresses

environment.cern has two IP addresses: 137.138.6.31 and 2001:1458:201:8b::100:1c8

Two other host names, along with repository.cern, darkmatter.cern and paas-apps-lb-1.cern.ch, also share IP numbers with environment.cern.

Name Servers

DNS delegation for environment.cern points to two name servers: ext-dns-1.cern.ch and ext-dns-2.cern.ch.

environment.cern shares its NS records with other domains, for example invenio-software.org, quantum.cern, cds-lb.cern.ch and two others.

At least some of environment.cern's name servers are shared with other domains, for example 158.134.in-addr.arpa, 96.48.193.in-addr.arpa, 161.190.194.in-addr.arpa and two more.

These name servers tend to co-occur with scsnms.switch.ch, ip-cahcp-1.cern.ch, ip-cahcp-2.cern.ch and 7 other name servers in the same DNS delegations.

ext-dns-1.cern.ch directs to 192.65.187.5 and 2001:1458:1:1::5. ext-dns-2.cern.ch directs to 192.91.245.85 and 2001:1458:1:2::100:85. Each host name carries two IP addresses.