`cpu.lu`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:1cb0^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:92f0^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.28.176^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.240^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`rita.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a8c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rita.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rita.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rita.ns.cloudflare.com`
		A	108.162.192.140^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rita.ns.cloudflare.com`
		A	172.64.32.140^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rita.ns.cloudflare.com`
		A	173.245.58.140^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rita.ns.cloudflare.com`
NS	`woz.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b96^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c196^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`woz.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2196^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`woz.ns.cloudflare.com`
		A	108.162.193.150^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	172.64.33.150^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	173.245.59.150^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
MX	`edgar.cpu.lu` ⭐
		A	2a01:239:2fd:b200::1^{🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de}
			PTR	`edgar.cpu.lu`
		A	82.165.116.65^{🇩🇪 IONOS-AS82.165.0.0/16 IONOS-PA-4}
			PTR	`edgar.cpu.lu`
TXT	`google-site-verification=bhwrMc9svF--u4dVOljrkPeHwWI-_S7pEayeFx47D5k`
TXT	`v=spf1 mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.28.176, 172.67.146.240
		IPv6 hints	2606:4700:3035::6815:1cb0, 2606:4700:3037::ac43:92f0
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=60, name=cloudflare-ech.com
SOA	`rita.ns.cloudflare.com`dns@cloudflare.com serial=2403627408

`lu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.lu` ⭐
	NS	`g.dns.lu`
	NS	`i.dns.lu`
	NS	`j.dns.lu`
	NS	`k.dns.lu`
	NS	`p.dns.lu`
	TXT	`Exported: 2026-05-09 20:01:01`
	SOA	`ns1.dns.lu`noc@restena.lu serial=1778349673

WOT: SAFE (67/100)

Subdomains

www.cpu.lu

mcp.cpu.lu

edgar.cpu.lu

Same first word

cpu.ovh

cpu.center

cpu.ie

cpu.com.my

cpu.ca

cpu.land

cpu.io

cpu.si

cpu.qc.ca

cpu.me

cpu.hu

cpu.org.il

cpu.com.tr

cpu.expert

cpu.uno

cpu.vg

cpu.edu.ec

cpu.sk

cpu.host

cpu.re

cpu.su

cpu.lublin.pl

cpu.us

cpu.ninja

cpu.cl

cpu.mx

cpu.co.uk

cpu.mobi

cpu.rs

cpu.by

cpu.tv

cpu.de

cpu.pl

cpu.com.uy

cpu.co.kr

cpu.services

cpu.careers

cpu.co

cpu.ac.kr

cpu.fi

cpu.org.ba

cpu.rent

cpu.lu

cpu.biz

cpu.nl

cpu.ac.th

cpu.edu.tw

cpu.red

cpu.hk

cpu.so

cpu.blue

cpu.cc

cpu.net

cpu.community

cpu.edu.cn

cpu.ru

cpu.ro

cpu.blog.br

cpu.vn

cpu.bz

cpu.ba

cpu.lt

cpu.com.tw

cpu.pt

cpu.be

cpu.com.ar

cpu.one

cpu.edu.hk

cpu.edu

cpu.tel

cpu.ee

cpu.co.id

cpu.guru

cpu.at

cpu.edu.ph

cpu.com.au

cpu.fr

cpu.gr

cpu.com

cpu.moe

cpu.gov.mo

Similar names

upc.community

upc.net.ua

cup.se

cup.edu.uy

ucp.su

cup.my

cup.gr

ucp.com.au

pcu.mobi

cup.la

puc.info

puc.style

ucp.edu.co

cup.net.au

upc.it

ucp.info

cup.football

pcu.tv

cup.net

upc.cn

upc.edu.ar

ucp.co.kr

puc.today

pcu.edu.mx

upc.edu.mn

upc.pe

upc.gov.ae

pcu.org

upc.ltd

upc.co.za

pcu.com.ph

cup.si

puc.no

upc.mobi

ucp.no

ucp.org

cup.world

puc.org.au

cup.name

upc.tax

puc.com

upc.com.tw

puc.fm

puc.mobi

pcu.gr

ucp.jp

upc.ro

puc.edu

puc.or.kr

ucp.edu.ar

upc.com.sa

puc.shopping

puc.clothing

puc.paris

cup.com.cn

upc.kz

upc.de

upc.nu

puc.life

pcu.ie

puc.jp

upc.life

cup.nl

cup.org.mk

upc.co.hu

upc.ir

cup.ee

ucp.group

cup.ms

cup.edu.cn

puc.it

puc.be

cup.at

puc.co.uk

upc.sk

cup.com.au

upc.nl

upc.is

DNS History

19 records (7 active, 12 former)

○NShestia.cetrel.net2009-01-09 → 2017-10-08 · 4 obs

● 2009-01-09 19:22:58
● 2017-10-08 07:32:06
○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

○NSns1.pt.lu2009-01-09 → 2017-10-08 · 4 obs

● 2009-01-09 19:22:58
● 2017-10-08 07:32:06
○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

●NSrita.ns.cloudflare.com2026-02-23 → 2026-05-09 · 3 obs

○ 2017-10-08 07:32:06
● 2026-02-23 21:45:52
● 2026-05-09 19:27:30

○NSvesta.cetrel.net2009-01-09 → 2017-10-08 · 4 obs

● 2009-01-09 19:22:58
● 2017-10-08 07:32:06
○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

●NSwoz.ns.cloudflare.com2026-02-23 → 2026-05-09 · 3 obs

○ 2017-10-08 07:32:06
● 2026-02-23 21:45:52
● 2026-05-09 19:27:30

●MXedgar.cpu.lu2026-02-23 → 2026-05-09 · 3 obs

○ 2017-10-08 07:32:06
● 2026-02-23 21:45:52
● 2026-05-09 19:27:30

○MXmcp.cpu.lu2015-08-26 → 2017-10-08 · 5 obs

○ 2009-01-09 19:22:58
● 2015-08-26 12:18:42
● 2017-10-08 07:32:06
○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

○MXpoison.cetrel.lu2009-01-09 → 2009-01-09 · 3 obs

● 2009-01-09 19:22:58
○ 2015-08-26 12:18:42
○ 2026-05-09 19:27:30

○MXtoxin.cetrel.lu2009-01-09 → 2009-01-09 · 3 obs

● 2009-01-09 19:22:58
○ 2015-08-26 12:18:42
○ 2026-05-09 19:27:30

●A104.21.28.1762026-02-23 → 2026-05-09 · 3 obs

○ 2017-10-08 07:32:06
● 2026-02-23 21:45:52
● 2026-05-09 19:27:30

●A172.67.146.2402026-02-23 → 2026-05-09 · 3 obs

○ 2017-10-08 07:32:06
● 2026-02-23 21:45:52
● 2026-05-09 19:27:30

○A188.114.96.02026-02-23 → 2026-05-09 · 2 obs

○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

○A188.114.97.02026-02-23 → 2026-05-09 · 2 obs

○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

○A2001:41d0:8:1915:e::22015-08-26 → 2017-10-08 · 5 obs

○ 2009-01-09 19:22:58
● 2015-08-26 12:18:42
● 2017-10-08 07:32:06
○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

●A2606:4700:3035::6815:1cb02026-02-23 → 2026-05-09 · 3 obs

○ 2017-10-08 07:32:06
● 2026-02-23 21:45:52
● 2026-05-09 19:27:30

●A2606:4700:3037::ac43:92f02026-02-23 → 2026-05-09 · 3 obs

○ 2017-10-08 07:32:06
● 2026-02-23 21:45:52
● 2026-05-09 19:27:30

○A2a06:98c1:3120::2026-02-23 → 2026-05-09 · 2 obs

○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

○A2a06:98c1:3121::2026-02-23 → 2026-05-09 · 2 obs

○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

○A5.135.126.1612015-08-26 → 2017-10-08 · 5 obs

○ 2009-01-09 19:22:58
● 2015-08-26 12:18:42
● 2017-10-08 07:32:06
○ 2026-02-23 21:45:52
○ 2026-05-09 19:27:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
lu	g.dns.lu, i.dns.lu, j.dns.lu, k.dns.lu...	12 records
cpu.lu	rita.ns.cloudflare.com, woz.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.150

NS records: rita.ns.cloudflare.com, woz.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cpu.lu (unsigned zone)

⏱️ Timing

Total: 1653ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.146.240, 104.21.28.176`
AAAA	2	`2606:4700:3037::ac43:92f0, 2606:4700:3035::6815:1cb0`
NS	2	`rita.ns.cloudflare.com, woz.ns.cloudflare.com`
MX	1	`edgar.cpu.lu (pri: 10)`
TXT	2	`google-site-verification=bhwrMc9svF--u4d, v=spf1 mx -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`rita.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (g.dns.lu, g.dns.lu, i.dns.lu...)

Analysis

Hierarchy

cpu.lu is a parent of www.cpu.lu, mcp.cpu.lu and edgar.cpu.lu.

IP Addresses

cpu.lu resolves to four IP numbers: 2606:4700:3035::6815:1cb0, 2606:4700:3037::ac43:92f0, 104.21.28.176 and 172.67.146.240.

Other host names such as phartoonz.com, mail.kawule.com, muteav.com, cloudsmtp.org and lucy-foishon.shop share IPs with cpu.lu.

Name Servers

cpu.lu is delegated to two name servers: rita.ns.cloudflare.com and woz.ns.cloudflare.com.

cpu.lu shares the same name server setup as waterloogardens.com, vaelox.com, rtp-gacordora.pages.dev, fitren.com and kosmos936.gr.

cpu.lu at least partially shares name servers with other domains, for instance knizhki.xyz, istanbulmap360.com, audi-club.dk, muisimple.com and page-approved-reservation.click.

These name servers are commonly used together with tim.ns.cloudflare.com, carl.ns.cloudflare.com and ali.ns.cloudflare.com.

Host names with six IP numbers:

rita.ns.cloudflare.com points to 2606:4700:50::adf5:3a8c, 2803:f800:50::6ca2:c08c, 2a06:98c1:50::ac40:208c, 108.162.192.140, 172.64.32.140 and 173.245.58.140.

woz.ns.cloudflare.com points to 2606:4700:58::adf5:3b96, 2803:f800:50::6ca2:c196, 2a06:98c1:50::ac40:2196, 108.162.193.150, 172.64.33.150 and 173.245.59.150.

Mail Servers

cpu.lu is handled by a single mail server, edgar.cpu.lu.

edgar.cpu.lu points to two IPs: 2a01:239:2fd:b200::1 and 82.165.116.65.

cpu.lu - robtex.com

cpu.lu

lu

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`cpu.lu`

`lu`