linuxsoft.cern.ch - dns.ninja

`linuxsoft.cern.ch`

DNSSEC	⚠️ Not signed
A	2001:1458:201:a4::100:2dc^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
		PTR	`lxsoft111.cern.ch`
A	2001:1458:d00:16::100:427^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
A	2001:1458:d00:17::100:c5^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
A	2001:1458:d00:17::100:24e^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
A	2001:1458:d00:24::100:356^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
A	2001:1458:d00:24::100:635^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
A	2001:1458:d00:61::100:3d6^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
A	2001:1458:d00:6f::100:42e^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
A	137.138.54.24^{🇨🇭 CERN137.138.0.0/16 -LAN1}
A	137.138.55.108^{🇨🇭 CERN137.138.0.0/16 -LAN1}
A	137.138.121.171^{🇨🇭 CERN137.138.0.0/16 -LAN1}
A	188.184.65.236^{🇨🇭 CERN188.184.0.0/16 -GPN2}
A	188.184.79.9^{🇨🇭 CERN188.184.0.0/16 -GPN2}
A	188.185.40.58^{🇨🇭 CERN188.185.0.0/16 -DATACENTRE}
A	188.185.41.214^{🇨🇭 CERN188.185.0.0/16 -DATACENTRE}
A	188.185.48.60^{🇨🇭 CERN188.185.0.0/16 -DATACENTRE}
NS	`ext-dns-1.cern.ch` ⭐ ⚠️ Not in parent delegation
		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` ⚠️ Not in parent delegation
		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.ch`external-dns@cern.ch serial=4192

`cern.ch`

	DNSSEC	⚠️ Not signed
	A	2001:1458:d00:3c::100:2f9^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
	A	188.184.77.250^{🇨🇭 CERN188.184.0.0/16 -GPN2}
	NS	`ext-dns-1.cern.ch` ⭐
	NS	`ext-dns-2.cern.ch`
	NS	`scsnms.switch.ch`
	MX	`cern-ch.mail.protection.outlook.com` ⭐
	TXT	`google-site-verification=aoFc91q4kA9Xp_-Z_AFY1gI0AmXpTXIMcGseZfvH0J8`
	TXT	`goqTmP4CYqgXEPONka9g8FCGD4vpvjieG4RI5NLxYZsBh/y5p88K9ym3zIFcLVbaYQdJkdhfYcjAD...`
	TXT	`openai-domain-verification=dv-R5PuLWpZKT8QhVzrlbLDHvBz`
	TXT	`sinch-domain-verification=1fa8887b-9312-4ca2-85f8-75f7c1ba81fd`
	TXT	`v=spf1 include:spf.cern.ch ?all`
	TXT	`MS=ms44269116`
	TXT	`anthropic-domain-verification-4kfdsh=uvjsOh2bjwteama1zHsw7FZtw`
	TXT	`cursor-domain-verification-8t0p9r=J6wFIABgbtZfHacKasG8HDZ1p`
	TXT	`autodesk-domain-verification=5Lt81tqLuEgD4wCC73YQ`
	TXT	`mistral-domain-verification=3a255465ec599b8016fb91a2f8563cc304e3b95d`
	SOA	`ext-dns-1.cern.ch`external-dns@cern.ch serial=2013770224

WOT: SAFE (85/100)
rank #1194 globally
rank #5 in the tld

cern.ch

cern.ch is the official website of the European Organization for Nuclear Research (CERN), the leading particle‑physics laboratory in Europe.

Key facts

Owner / operator: European Organization for Nuclear Research (CERN)
TLD: .ch— Switzerland ccTLD
Primary purpose: public portal for research information, news, and services of CERN
Status: active

WOT: SAFE (88/100)
📈 Tranco rank: #2,809

Same first word

linuxsoft.com

linuxsoft.ru

linuxsoft.cz

linuxsoft.de

Similar names

softlinux.de

lunixsoft.com

luxfontis.de

DNS History

34 records (18 active, 16 former)

●NSext-dns-1.cern.ch2015-08-13 → 2026-07-20 · 2 obs

● 2015-08-13 19:11:20
● 2026-07-20 18:57:24

●NSext-dns-2.cern.ch2015-08-13 → 2026-07-20 · 2 obs

● 2015-08-13 19:11:20
● 2026-07-20 18:57:24

●A137.138.121.1712026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

○A137.138.18.1512015-08-13 → 2016-10-29 · 7 obs

● 2015-08-13 19:11:20
● 2015-10-14 15:07:54
○ 2016-01-19 22:53:20
● 2016-04-26 10:32:52
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A137.138.18.1522015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A137.138.18.1532015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A137.138.18.1542015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A137.138.18.1552015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A137.138.18.1562015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A137.138.18.1572015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A137.138.18.1582015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

●A137.138.54.242026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A137.138.55.1082026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A188.184.65.2362026-03-16 → 2026-07-20 · 6 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-04-09 17:01:26
○ 2026-04-10 11:10:44
● 2026-04-10 11:42:42
● 2026-07-20 18:57:24

●A188.184.79.92026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A188.185.40.582026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A188.185.41.2142026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A188.185.48.602026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

○A2001:1458:201:95::100:102015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A2001:1458:201:95::100:112015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A2001:1458:201:95::100:122015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A2001:1458:201:95::100:132015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A2001:1458:201:95::100:142015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A2001:1458:201:95::100:d2015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A2001:1458:201:95::100:e2015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

○A2001:1458:201:95::100:f2015-08-13 → 2016-10-29 · 4 obs

● 2015-08-13 19:11:20
● 2016-10-29 12:26:14
○ 2026-03-16 12:00:04
○ 2026-07-20 18:57:24

●A2001:1458:201:a4::100:2dc2026-03-16 → 2026-07-20 · 6 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-04-09 17:01:26
○ 2026-04-10 11:10:44
● 2026-04-10 11:42:42
● 2026-07-20 18:57:24

●A2001:1458:d00:16::100:4272026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A2001:1458:d00:17::100:24e2026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A2001:1458:d00:17::100:c52026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A2001:1458:d00:24::100:3562026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A2001:1458:d00:24::100:6352026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A2001:1458:d00:61::100:3d62026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

●A2001:1458:d00:6f::100:42e2026-03-16 → 2026-07-20 · 3 obs

○ 2016-10-29 12:26:14
● 2026-03-16 12:00:04
● 2026-07-20 18:57:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	f.nic.ch, b.nic.ch, a.nic.ch, e.nic.ch...	-
cern.ch	ext-dns-2.cern.ch, ext-dns-1.cern.ch, scsnms.switch.ch	6 records

✅ Authoritative Response

Server:192.65.187.5

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cern.ch (unsigned zone)

⏱️ Timing

Total: 608ms | Queries: -

📄 Records

Type	Count	Sample Data
A	8	`188.184.79.9, 188.185.41.214...`
AAAA	8	`2001:1458:201:a4::100:2dc, 2001:1458:d00:6f::100:42e...`
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: 6

In-bailiwick: 4 (ext-dns-2.cern.ch, ext-dns-1.cern.ch, ext-dns-2.cern.ch...)

Out-of-bailiwick: 2 (scsnms.switch.ch, scsnms.switch.ch)

Analysis

IP Addresses

linuxsoft.cern.ch points to 16 IP addresses, including 137.138.54.24, 137.138.55.108 and 137.138.121.171, plus 13 other.

lxsoft105.cern.ch, lxsoft104.cern.ch, lxsoft101.cern.ch plus two other host names have IP numbers in common with linuxsoft.cern.ch.

Name Servers

Two name servers handle the delegation for linuxsoft.cern.ch: ext-dns-1.cern.ch and ext-dns-2.cern.ch.

The name server configuration of linuxsoft.cern.ch is shared with other domains, for instance 196.65.192.in-addr.arpa, alumni.cern, lxplus.cern.ch and two others.

There is at least partial name server overlap between linuxsoft.cern.ch and other domains — 147.12.194.in-addr.arpa, 155.16.192.in-addr.arpa, 92.48.193.in-addr.arpa and two more among them.

These name servers regularly appear alongside scsnms.switch.ch, ip-cahcp-1.cern.ch, ip-cahcp-2.cern.ch and 7 other name servers in NS record sets.

ext-dns-1.cern.ch and ext-dns-2.cern.ch both carry two IP addresses. The A records for ext-dns-1.cern.ch are 192.65.187.5 and 2001:1458:1:1::5; the A records for ext-dns-2.cern.ch are 192.91.245.85 and 2001:1458:1:2::100:85.