cms.cern - dns.ninja
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=1782384104 | ||||||
rank #4 in the tld
📈 Tranco rank: #651,560
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
●NSext-dns-1.cern.ch2016-12-13 → 2026-06-25 · 2 obs
● 2026-06-25 10:50:34
●NSext-dns-2.cern.ch2016-12-13 → 2026-06-25 · 2 obs
● 2026-06-25 10:50:34
○MXcernmxgwlb.cern.ch2016-12-13 → 2026-02-17 · 4 obs
● 2026-02-17 04:36:08
○ 2026-02-18 16:27:52
○ 2026-06-25 10:50:34
○A188.184.37.2052016-12-13 → 2019-01-10 · 4 obs
● 2019-01-10 07:02:44
○ 2021-01-07 16:35:36
○ 2026-06-25 10:50:34
○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
○ 2026-06-25 10:50:34
●A188.184.76.1462026-02-15 → 2026-06-25 · 3 obs
● 2026-02-15 10:50:22
● 2026-06-25 10:50:34
○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
○ 2026-06-25 10:50:34
○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
○ 2026-06-25 10:50:34
●A2001:1458:d00:3c::100:d72026-02-15 → 2026-06-25 · 3 obs
● 2026-02-15 10:50:22
● 2026-06-25 10:50:34
🔍 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: 805ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.184.76.146 |
| AAAA | 1 | 2001:1458:d00:3c::100:d7 |
| NS | 2 | ext-dns-1.cern.ch, ext-dns-2.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 the IP addresses 188.184.76.146 and 2001:1458:d00:3c::100:d7
atlas.cern, beams.cern, chis.cern plus two other host names have IP numbers in common with cms.cern.
Name Servers
cms.cern is served by two delegated name servers, ext-dns-1.cern.ch and ext-dns-2.cern.ch.
The name server configuration of cms.cern is shared with other domains, for instance db-lb-185.cern.ch, indico-software.org, panda-lb.cern.ch and two others.
cms.cern has at least partial name server overlap with other domains, such as 95.48.193.in-addr.arpa, 184.188.in-addr.arpa, vaccinesafetynet.org and two others.
scsnms.switch.ch, ip-cahcp-1.cern.ch and ip-cahcp-2.cern.ch — plus 7 other name servers — are commonly paired with these name servers.
Each of the two host names carries two IP addresses: ext-dns-1.cern.ch points to 192.65.187.5 and 2001:1458:1:1::5, and ext-dns-2.cern.ch points to 192.91.245.85 and 2001:1458:1:2::100:85.