`lxplus964.cern.ch`

DNSSEC	⚠️ Not signed
A	2001:1458:d00:17::100:27f^{🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research}
		PTR	`lxplus964.cern.ch`
A	137.138.52.174^{🇨🇭 CERN137.138.0.0/16 -LAN1}

`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	`cursor-domain-verification-8t0p9r=J6wFIABgbtZfHacKasG8HDZ1p`
	TXT	`MS=ms44269116`
	TXT	`mistral-domain-verification=3a255465ec599b8016fb91a2f8563cc304e3b95d`
	TXT	`autodesk-domain-verification=5Lt81tqLuEgD4wCC73YQ`
	TXT	`v=spf1 include:spf.cern.ch ?all`
	TXT	`goqTmP4CYqgXEPONka9g8FCGD4vpvjieG4RI5NLxYZsBh/y5p88K9ym3zIFcLVbaYQdJkdhfYcjAD...`
	TXT	`openai-domain-verification=dv-R5PuLWpZKT8QhVzrlbLDHvBz`
	SOA	`ext-dns-1.cern.ch`external-dns@cern.ch serial=2013757623

WOT: SAFE (82/100)
rank #1167 globally
rank #4 in the tld
This domain "cern.ch" refers to the official website of the European Organization for Nuclear Research, better known as CERN. Based in Switzerland, CERN is renowned for its cutting-edge research in particle physics, including the discovery of the Higgs boson particle. "CERN" stands for "Conseil Européen pour la Recherche Nucléaire," which translates to "European Council for Nuclear Research".WOT: SAFE (88/100)
📈 Tranco rank: #3,035

PTR for

2.7.0.0.0.0.1.0.0.0.0.0.0.0.0.0.9.3.0.0.0.0.d.0.8.5.4.1.1.0.0.2.ip6.arpa

117.96.184.188.in-addr.arpa

4.5.3.0.0.0.1.0.0.0.0.0.0.0.0.0.a.3.0.0.0.0.d.0.8.5.4.1.1.0.0.2.ip6.arpa

174.52.138.137.in-addr.arpa

f.7.2.0.0.0.1.0.0.0.0.0.0.0.0.0.7.1.0.0.0.0.d.0.8.5.4.1.1.0.0.2.ip6.arpa

DNS History

4 records (2 active, 2 former)

●A137.138.52.1742026-04-06 → 2026-04-24 · 3 obs

○ 2026-02-15 18:43:40
● 2026-04-06 23:27:12
● 2026-04-24 03:48:52

○A188.184.98.2212026-02-15 → 2026-02-15 · 3 obs

● 2026-02-15 18:43:40
○ 2026-04-06 23:27:12
○ 2026-04-24 03:48:52

●A2001:1458:d00:17::100:27f2026-04-06 → 2026-04-24 · 3 obs

○ 2026-02-15 18:43:40
● 2026-04-06 23:27:12
● 2026-04-24 03:48:52

○A2001:1458:d00:3a::100:3542026-02-15 → 2026-02-15 · 3 obs

● 2026-02-15 18:43:40
○ 2026-04-06 23:27:12
○ 2026-04-24 03:48:52

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:192.65.187.5

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cern.ch (unsigned zone)

⏱️ Timing

Total: 1049ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`137.138.52.174`
AAAA	1	`2001:1458:d00:17::100:27f`

📌 Glue Records Collected

Total: 6

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

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

Analysis

IP Addresses

lxplus964.cern.ch points to two IP numbers: 2001:1458:d00:17::100:27f and 137.138.52.174.

lxplus964.cern.ch - robtex.com