cmp.lu - dns.ninja
cmp.lu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 195.26.5.2🇱🇺 ROOT195.26.4.0/23 root SA | ||||||
| NS | ns1.root.lu ⭐ | ||||||
| A | 2a01:608::3🇱🇺 ROOT2a01:608::/32 root SA | ||||||
| PTR | a.root.lu | ||||||
| A | 195.26.4.3🇱🇺 ROOT195.26.4.0/23 root SA | ||||||
| NS | alpha.ns.network.lu | ||||||
| A | 2a05:93c0:1006:1010:f816:3eff:fe2e:1e52🇳🇱 SERVERS2a05:93c0::/32 .COM NL01 | ||||||
| A | 213.196.40.85🇳🇱 SERVERS213.196.40.0/24 .COM AMS1 CLOUD COMPUTING | ||||||
| NS | ns2.root.lu | ||||||
| A | 83.243.8.3🇱🇺 ROOT83.243.8.0/21 root SA | ||||||
| MX | b.mx.root.lu ⭐ | ||||||
| A | 195.26.4.9🇱🇺 ROOT195.26.4.0/23 root SA | ||||||
| TXT | v=spf1 mx a ip4:83.243.9.0/24 ip4:195.26.4.0/23 | ||||||
| SOA | ns1.root.luadmin@root.lu serial=1690228043 | ||||||
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: 2026-07-16 13:01:01 | ||||||
| SOA | 1.ns.lunoc@restena.lu serial=1784199672 | ||||||
Subdomains
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSalpha.ns.network.lu2026-03-22 → 2026-07-16 · 3 obs
● 2026-03-22 07:21:50
● 2026-07-16 11:13:56
●MXb.mx.root.lu2026-03-22 → 2026-07-16 · 3 obs
● 2026-03-22 07:21:50
● 2026-07-16 11:13:56
○MXc.mx.root.lu2015-08-31 → 2017-08-24 · 4 obs
● 2017-08-24 23:06:30
○ 2026-03-22 07:21:50
○ 2026-07-16 11:13:56
●A195.26.5.22015-08-31 → 2026-07-16 · 2 obs
● 2026-07-16 11:13:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| lu | g.dns.lu, i.dns.lu, r.ns.lu, 1.ns.lu... | - |
| cmp.lu | ns1.root.lu, ns2.root.lu, alpha.ns.network.lu | 2 records |
✅ Authoritative Response
Server:195.26.4.3
NS records: ns1.root.lu, ns2.root.lu, alpha.ns.network.lu
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cmp.lu (unsigned zone)
⏱️ Timing
Total: 1382ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.26.5.2 |
| NS | 3 | ns2.root.lu, ns1.root.lu... |
| MX | 1 | b.mx.root.lu (pri: 10) |
| TXT | 1 | v=spf1 mx a ip4:83.243.9.0/24 ip4:195.26 |
| SOA | 1 | ns1.root.lu admin.root.lu |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (alpha.ns.network.lu, alpha.ns.network.lu)
Analysis
Hierarchy
www.cmp.lu and mail.cmp.lu are both subdomains of cmp.lu.
IP Addresses
cmp.lu resolves to one IP address: 195.26.5.2.
markise.lu, herrmann.lu, www.helm.lu and two other host names share IP numbers with cmp.lu.
Name Servers
Three name servers are authoritative for cmp.lu: ns1.root.lu, ns2.root.lu and alpha.ns.network.lu.
There is at least partial name server overlap between cmp.lu and other domains — alinea.lu, amis-uni.lu, aixme.com and two more among them.
Hostnames that resolve to two IP addresses:
ns1.root.lu maps to two IP addresses — 195.26.4.3 and 2a01:608::3.
alpha.ns.network.lu maps to two IP addresses — 213.196.40.85 and 2a05:93c0:1006:1010:f816:3eff:fe2e:1e52.
Hosts with just one IP address:
ns2.root.lu points to the IP address 83.243.8.3.
Mail Servers
Mail for cmp.lu is handled by a single mail server, b.mx.root.lu.
cmp.lu uses an identical mail server configuration to several other domains — among them fleurs-binsfeld.lu, web781u2.site.lu, photoclubpetange.lu and two more.
cmp.lu has at least partial mail server overlap with other domains such as nathalieschmit.com, softwareunion.lu, sluf.lu and two more.
There is one IP number for b.mx.root.lu: 195.26.4.9.