engineering.cern - robtex.com
engineering.cern
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:1458:201:8b::100:1c8🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research | ||||||
| PTR | lbaas-ed6043ec-be11-40f8-b8b7-ec7cedb5fdd9.cern.ch | ||||||
| A | 137.138.6.31🇨🇭 CERN137.138.0.0/16 -LAN1 | ||||||
| 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 2019-05-20 #2 | ||||||
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=1783095760 | ||||||
Same first word
Similar names
geigerinnen.de |
ingeneering.com |
engeeniring.com |
engeniering.com |
gnireenigne.org |
ingeneering.de |
ingeneering.net |
geigerinnen.com |
gnireenigne.net |
ingeneering.org |
DNS History
4 records (4 active, 0 former)
●NSext-dns-1.cern.ch2026-04-29 → 2026-07-03 · 2 obs
● 2026-07-03 16:29:00
●NSext-dns-2.cern.ch2026-04-29 → 2026-07-03 · 2 obs
● 2026-07-03 16:29:00
●A137.138.6.312026-04-29 → 2026-07-03 · 2 obs
● 2026-07-03 16:29:00
●A2001:1458:201:8b::100:1c82026-04-29 → 2026-07-03 · 2 obs
● 2026-07-03 16:29:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cern | a0.nic.cern, a2.nic.cern, b0.nic.cern, c0.nic.cern | 8 records |
| engineering.cern | ext-dns-1.cern.ch, ext-dns-2.cern.ch | - |
✅ Authoritative Response
Server:192.91.245.85
NS records: ext-dns-1.cern.ch, ext-dns-2.cern.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for engineering.cern (unsigned zone)
⏱️ Timing
Total: 851ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 137.138.6.31 |
| AAAA | 1 | 2001:1458:201:8b::100:1c8 |
| 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
engineering.cern resolves to the IP addresses 137.138.6.31 and 2001:1458:201:8b::100:1c8
antimatter.cern, particles.cern, technology.cern and two other host names share IP numbers with engineering.cern.
Name Servers
engineering.cern is delegated to two name servers: ext-dns-1.cern.ch and ext-dns-2.cern.ch.
engineering.cern uses the same name servers as several other domains — among them accelerators.cern, www.cern, beamlineforschools.cern and two more.
engineering.cern shares at least some of its name servers with other domains, including 165.190.194.in-addr.arpa, 243.91.192.in-addr.arpa, 130.12.194.in-addr.arpa and two others.
These name servers are frequently seen alongside scsnms.switch.ch, ip-cahcp-1.cern.ch, ip-cahcp-2.cern.ch and 7 other name servers.
ext-dns-1.cern.ch and ext-dns-2.cern.ch each resolve to two IP addresses: ext-dns-1.cern.ch points to 192.65.187.5 and 2001:1458:1:1::5, while ext-dns-2.cern.ch points to 192.91.245.85 and 2001:1458:1:2::100:85.