cms.cern - robtex.com
cms.cern
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:1458:d00:3c::100:d7 | ||||||
| A | 188.184.76.146 | ||||||
| NS | ext-dns-1.cern.ch ⭐ | ||||||
| NS | 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=1783008226 | ||||||
rank #4 in the tld
📈 Tranco rank: #667,479
DNS History
9 records (4 active, 5 former)
●NSext-dns-1.cern.ch2016-12-13 → 2026-07-02 · 2 obs
● 2016-12-13 02:41:10
● 2026-07-02 17:37:00
● 2026-07-02 17:37:00
●NSext-dns-2.cern.ch2016-12-13 → 2026-07-02 · 2 obs
● 2016-12-13 02:41:10
● 2026-07-02 17:37:00
● 2026-07-02 17:37:00
○MXcernmxgwlb.cern.ch2016-12-13 → 2026-02-17 · 4 obs
● 2016-12-13 02:41:10
● 2026-02-17 04:36:08
○ 2026-02-18 16:27:52
○ 2026-07-02 17:37:00
● 2026-02-17 04:36:08
○ 2026-02-18 16:27:52
○ 2026-07-02 17:37:00
○A188.184.37.2052016-12-13 → 2019-01-10 · 4 obs
● 2016-12-13 02:41:10
● 2019-01-10 07:02:44
○ 2021-01-07 16:35:36
○ 2026-07-02 17:37:00
● 2019-01-10 07:02:44
○ 2021-01-07 16:35:36
○ 2026-07-02 17:37:00
○A188.184.37.2192021-01-07 → 2021-09-12 · 5 obs
○ 2019-01-10 07:02:44
● 2021-01-07 16:35:36
● 2021-09-12 08:37:08
○ 2026-02-15 10:50:22
○ 2026-07-02 17:37:00
● 2021-01-07 16:35:36
● 2021-09-12 08:37:08
○ 2026-02-15 10:50:22
○ 2026-07-02 17:37:00
●A188.184.76.1462026-02-15 → 2026-07-02 · 3 obs
○ 2021-09-12 08:37:08
● 2026-02-15 10:50:22
● 2026-07-02 17:37:00
● 2026-02-15 10:50:22
● 2026-07-02 17:37:00
○A2001:1458:201:b0::100:1b2021-01-07 → 2021-09-12 · 5 obs
○ 2019-01-10 07:02:44
● 2021-01-07 16:35:36
● 2021-09-12 08:37:08
○ 2026-02-15 10:50:22
○ 2026-07-02 17:37:00
● 2021-01-07 16:35:36
● 2021-09-12 08:37:08
○ 2026-02-15 10:50:22
○ 2026-07-02 17:37:00
○A2001:1458:201:b0::100:d2016-12-13 → 2019-01-10 · 4 obs
● 2016-12-13 02:41:10
● 2019-01-10 07:02:44
○ 2021-01-07 16:35:36
○ 2026-07-02 17:37:00
● 2019-01-10 07:02:44
○ 2021-01-07 16:35:36
○ 2026-07-02 17:37:00
●A2001:1458:d00:3c::100:d72026-02-15 → 2026-07-02 · 3 obs
○ 2021-09-12 08:37:08
● 2026-02-15 10:50:22
● 2026-07-02 17:37:00
● 2026-02-15 10:50:22
● 2026-07-02 17:37:00
🔍 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-2.cern.ch, ext-dns-1.cern.ch | - |
✅ Authoritative Response
Server:192.65.187.5
NS records: ext-dns-2.cern.ch, ext-dns-1.cern.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cms.cern (unsigned zone)
⏱️ Timing
Total: 3292ms | 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, a2.nic.cern, b0.nic.cern...)
Analysis
IP Addresses
cms.cern points to the IP addresses 188.184.76.146 and 2001:1458:d00:3c::100:d7
Name Servers
Two name servers handle the delegation for cms.cern: ext-dns-1.cern.ch and ext-dns-2.cern.ch.