cms.cern - robtex.com
cms.cern
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:1458:d00:3c::100:d7🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research | ||||||
| PTR | lbaas-fc36cd0e-c9d9-466e-9869-b292a072f417.cern.ch | ||||||
| A | 188.184.76.146🇨🇭 CERN188.184.0.0/16 -GPN2 | ||||||
| NS | ext-dns-1.cern.ch ⭐ | ||||||
| A | 2001:1458:1:1::5🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research | ||||||
| PTR | ext-dns-1.cern.ch | ||||||
| A | 192.65.187.5🇨🇭 CERN192.65.184.0/21 -BLK2 | ||||||
| PTR | ext-dns-1.cern.ch | ||||||
| NS | ext-dns-2.cern.ch | ||||||
| A | 2001:1458:1:2::100:85🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research | ||||||
| PTR | ext-dns-2.cern.ch | ||||||
| A | 192.91.245.85🇨🇭 CERN192.91.244.0/23 - European Laboratory for Particle Physics CH-1211 Geneva 23, Switzerland | ||||||
| PTR | ext-dns-2.cern.ch | ||||||
| SOA | ext-dns-1.cern.chexternal-dns@cern.ch 2016-02-01 #3 | ||||||
cern
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.cern ⭐ | ||||||
| NS | a2.nic.cern | ||||||
| NS | b0.nic.cern | ||||||
| NS | c0.nic.cern | ||||||
| SOA | a0.nic.cernhostmaster@donuts.email serial=1776986450 | ||||||
rank #4 in the tld
This domain, "cms.cern", belongs to the Compact Muon Solenoid (CMS) experiment at the European Organization for Nuclear Research (CERN). The CMS is one of the four main experiments at the Large Hadron Collider (LHC), the world's most powerful particle collider. CERN uses this domain to provide information about the CMS experiment, its research, discoveries, and data.📈 Tranco rank: #704,942
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
●NSext-dns-1.cern.ch2016-12-13 → 2026-04-23 · 2 obs
● 2026-04-23 23:26:20
●NSext-dns-2.cern.ch2016-12-13 → 2026-04-23 · 2 obs
● 2026-04-23 23:26:20
○MXcernmxgwlb.cern.ch2016-12-13 → 2026-02-17 · 4 obs
● 2026-02-17 04:36:08
○ 2026-02-18 16:27:52
○ 2026-04-23 23:26:20
○A188.184.37.2052016-12-13 → 2019-01-10 · 4 obs
● 2019-01-10 07:02:44
○ 2021-01-07 16:35:36
○ 2026-04-23 23:26:20
○A188.184.37.2192021-01-07 → 2021-09-12 · 5 obs
● 2021-01-07 16:35:36
● 2021-09-12 08:37:08
○ 2026-02-15 10:50:22
○ 2026-04-23 23:26:20
●A188.184.76.1462026-02-15 → 2026-04-23 · 3 obs
● 2026-02-15 10:50:22
● 2026-04-23 23:26:20
○A2001:1458:201:b0::100:1b2021-01-07 → 2021-09-12 · 5 obs
● 2021-01-07 16:35:36
● 2021-09-12 08:37:08
○ 2026-02-15 10:50:22
○ 2026-04-23 23:26:20
○A2001:1458:201:b0::100:d2016-12-13 → 2019-01-10 · 4 obs
● 2019-01-10 07:02:44
○ 2021-01-07 16:35:36
○ 2026-04-23 23:26:20
●A2001:1458:d00:3c::100:d72026-02-15 → 2026-04-23 · 3 obs
● 2026-02-15 10:50:22
● 2026-04-23 23:26:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cern | a0.nic.cern, a2.nic.cern, b0.nic.cern, c0.nic.cern | 8 records |
| cms.cern | ext-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 cms.cern (unsigned zone)
⏱️ Timing
Total: 866ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.184.76.146 |
| AAAA | 1 | 2001:1458:d00:3c::100:d7 |
| NS | 2 | ext-dns-2.cern.ch, ext-dns-1.cern.ch |
| SOA | 1 | ext-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
cms.cern resolves to two IP numbers: 2001:1458:d00:3c::100:d7 and 188.184.76.146.
Other host names, for instance atlas.cern, beams.cern, icern.ch, library.cern and awake.cern share IP numbers with cms.cern.
Name Servers
Two name servers ext-dns-1.cern.ch and ext-dns-2.cern.ch handle delegation for cms.cern.
cms.cern uses the same name server setup as other domains, for example db-lb-185.cern.ch, indico-software.org, panda-lb.cern.ch, learn.cern and environment.cern.
cms.cern partially shares name servers with other domains; examples include 95.48.193.in-addr.arpa, 184.188.in-addr.arpa, vaccinesafetynet.org, ipv6.cern.ch and 45.32.198.in-addr.arpa.
These name servers are commonly used alongside scsnms.switch.ch, ip-cahcp-1.cern.ch, ip-cahcp-2.cern.ch, ccpntc3.in2p3.fr, ccpnvx.in2p3.fr, ns0.diamond.ac.uk, ns1.diamond.ac.uk, whqdns1.who.int, whqdns2.who.int and whqdns3.who.int.
Host names with two IP numbers:
ext-dns-1.cern.ch points to: 2001:1458:1:1::5 and 192.65.187.5
ext-dns-2.cern.ch points to: 2001:1458:1:2::100:85 and 192.91.245.85