🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`ctconstructions.lu`

DNSSEC	⚠️ Not signed
A	91.234.194.101^{🇫🇷 LWS91.234.194.0/24}
		PTR	`web62.lws-hosting.com`
NS	`ns1.eurodns.com` ⭐
		A	2610:1c8:b002::107^{🇺🇸 AS233932610:1c8:b002::/48 200 Broadacres Dr Bloomfield NJ 07003 United States}
			PTR	`ns1.eurodns.com`
		A	199.167.66.107^{🇺🇸 AS23393199.167.66.0/24 200 Broadacres Dr Bloomfield NJ 07003 United States}
			PTR	`ns1.eurodns.com`
NS	`ns2.eurodns.com`
		A	2610:1c8:b001::107^{🇺🇸 AS233932610:1c8:b001::/48 200 Broadacres Dr Bloomfield NJ 07003 United States}
			PTR	`ns2.eurodns.com`
		A	104.37.178.107^{🇺🇸 AS23393104.37.178.0/24 200 Broadacres Dr Bloomfield NJ 07003 United States}
			PTR	`ns2.eurodns.com`
NS	`ns3.eurodns.com`
		A	2610:1c8:b002::108^{🇺🇸 AS233932610:1c8:b002::/48 200 Broadacres Dr Bloomfield NJ 07003 United States}
			PTR	`ns3.eurodns.com`
		A	199.167.66.108^{🇺🇸 AS23393199.167.66.0/24 200 Broadacres Dr Bloomfield NJ 07003 United States}
			PTR	`ns3.eurodns.com`
NS	`ns4.eurodns.com`
		A	2610:1c8:b001::108^{🇺🇸 AS233932610:1c8:b001::/48 200 Broadacres Dr Bloomfield NJ 07003 United States}
			PTR	`ns4.eurodns.com`
		A	104.37.178.108^{🇺🇸 AS23393104.37.178.0/24 200 Broadacres Dr Bloomfield NJ 07003 United States}
			PTR	`ns4.eurodns.com`
MX	`ctconstructions-lu.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::9^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00601.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::24^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am6pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::28^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am6pr02cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:ca3c::6^{🇨🇭 Microsoft2a01:111:f000::/36}
			PTR	`mail-zrxpr04cu00106.inbound.protection.outlook.com`
		A	52.101.68.25^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.68.39^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00607.inbound.protection.outlook.com`
		A	52.101.73.145^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am6pr02cu00301.inbound.protection.outlook.com`
		A	52.101.103.143^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-miypr03cu00107.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns1.eurodns.com`hostmaster@eurodns.com 2026-05-04 #0

`lu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`1.ns.lu` ⭐
	NS	`g.dns.lu`
	NS	`i.dns.lu`
	NS	`j.dns.lu`
	NS	`k.dns.lu`
	NS	`p.dns.lu`
	NS	`r.ns.lu`
	TXT	`Exported: 2026-10-20 06:01:01`
	SOA	`1.ns.lu`noc@restena.lu serial=1792468872

Same first word

ctconstructions.co.uk

ctconstructions.lu

ctconstructions.com.au

Similar names

Previous names

cssf.lu

cssl.lu

csst.lu

cst.lu

csu.lu

csv-mondorf.lu

csv-monnerech.lu

csv.lu

cswl.lu

ct-car.lu

ct-concept.lu

ct-go.lu

ct-solutions.lu

ct01.lu

cta.lu

ctadmin.lu

ctc.lu

ctco.lu

Next names

cte.lu

cteam.lu

ctf.lu

ctforyou.lu

ctfs.lu

ctg.lu

ctgo.lu

cth.lu

cthu.lu

ctie.lu

ctisa.lu

ctisystems.lu

ctl.lu

ctlux.lu

ctmosarl.lu

ctmservices.lu

cto.lu

ctok.lu

ctpl.lu

ctproconcept.lu

DNS History

6 records (6 active, 0 former)

●NSns1.eurodns.com2026-09-07 → 2026-10-20 · 2 obs

● 2026-09-07 16:18:46
● 2026-10-20 04:30:20

●NSns2.eurodns.com2026-09-07 → 2026-10-20 · 2 obs

● 2026-09-07 16:18:46
● 2026-10-20 04:30:20

●NSns3.eurodns.com2026-09-07 → 2026-10-20 · 2 obs

● 2026-09-07 16:18:46
● 2026-10-20 04:30:20

●NSns4.eurodns.com2026-09-07 → 2026-10-20 · 2 obs

● 2026-09-07 16:18:46
● 2026-10-20 04:30:20

●MXctconstructions-lu.mail.protection.outlook.com2026-09-07 → 2026-10-20 · 2 obs

● 2026-09-07 16:18:46
● 2026-10-20 04:30:20

●A91.234.194.1012026-09-07 → 2026-10-20 · 2 obs

● 2026-09-07 16:18:46
● 2026-10-20 04:30:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
lu	1.ns.lu, g.dns.lu, i.dns.lu, j.dns.lu...	-
ctconstructions.lu	ns3.eurodns.com, ns1.eurodns.com, ns2.eurodns.com, ns4.eurodns.com	-

✅ Authoritative Response

Server:199.167.66.108

NS records: ns3.eurodns.com, ns1.eurodns.com, ns2.eurodns.com, ns4.eurodns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctconstructions.lu (unsigned zone)

⏱️ Timing

Total: 933ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.234.194.101`
NS	4	`ns1.eurodns.com, ns2.eurodns.com...`
MX	1	`ctconstructions-lu.mail.protection.outlo`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.eurodns.com hostmaster.eurodns.com`

Analysis

IP Addresses

ctconstructions.lu has exactly one IP address — 91.234.194.101.

synergies-conseils-services.com, o-prive.com, ovatech-cources.com plus two other host names have IP numbers in common with ctconstructions.lu.

Name Servers

Four name servers handle the delegation for ctconstructions.lu: ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and ns4.eurodns.com.

There is at least partial name server overlap between ctconstructions.lu and other domains — lxry.at, nicoll-nordic.net, experiencerdcongo.cd and two more among them.

All four hostnames — ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and ns4.eurodns.com — resolve to two IP numbers apiece: ns1.eurodns.com to 199.167.66.107 and 2610:1c8:b002::107; ns2.eurodns.com to 104.37.178.107 and 2610:1c8:b001::107; ns3.eurodns.com to 199.167.66.108 and 2610:1c8:b002::108; ns4.eurodns.com to 104.37.178.108 and 2610:1c8:b001::108.

Mail Servers

ctconstructions.lu uses one mail server — ctconstructions-lu.mail.protection.outlook.com.

ctconstructions-lu.mail.protection.outlook.com has 8 IP addresses: 52.101.68.25, 52.101.68.39, 52.101.73.145 plus 5 more.

ctconstructions.lu - robtex.com