cpp.nu - dns.ninja
cpp.nu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 178.21.73.112🇸🇪 ADMAX178.21.73.0/24 | ||||||
| PTR | da103.admax.se | ||||||
| NS | ns1.worldcastdns.se ⭐ | ||||||
| A | 2a04:780:4::8🇸🇪 ADMAX2a04:780::/29 | ||||||
| PTR | ns1.worldcastdns.se | ||||||
| A | 178.21.72.132🇸🇪 ADMAX178.21.72.0/24 | ||||||
| PTR | ns1.worldcastdns.se | ||||||
| NS | ns2.worldcastdns.com | ||||||
| A | 178.73.214.157🇸🇪 GLESYS178.73.192.0/18 Portlane Network | ||||||
| PTR | ns2.worldcastdns.com | ||||||
| NS | ns3.worldcastdns.eu | ||||||
| A | 2001:41d0:701:1100::2522🇩🇪 OVH2001:41d0::/32 IPv6 | ||||||
| PTR | ns3.worldcastdns.eu | ||||||
| A | 51.75.73.106🇩🇪 OVH51.75.0.0/16 | ||||||
| PTR | ns3.worldcastdns.eu | ||||||
| NS | ns4.worldcastdns.us | ||||||
| A | 2607:5300:201:3100::55f9🇨🇦 OVH2607:5300::/32 Hosting route | ||||||
| PTR | ns4.worldcastdns.us | ||||||
| A | 192.99.70.212🇨🇦 OVH192.99.0.0/16 Hosting route | ||||||
| PTR | ns4.worldcastdns.us | ||||||
| MX | mail.smartemail.se ⭐ | ||||||
| A | 185.88.136.52🇸🇪 ADMAX185.88.136.0/22 | ||||||
| PTR | mail.smartemail.se | ||||||
| TXT | v=spf1 a mx a:smtp2.smartemail.se a:smtp3.smartemail.se a:smtp4.smartemail.se... | ||||||
| SOA | ns1.worldcastdns.sehostmaster@cpp.nu 2023-12-06 #6 | ||||||
nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | catcher-in-the-rye.nic.nu ⭐ | ||||||
| NS | a.ns.nu | ||||||
| NS | c.ns.nu | ||||||
| NS | d.ns.nu | ||||||
| NS | m.ns.nu | ||||||
| NS | y.ns.nu | ||||||
| NS | z.ns.nu | ||||||
| TXT | NU zone update: 2026-06-04 16:05:16 +0000 (EPOCH 1780589116) (auto) | ||||||
| TXT | id:d98d69fa-f898-4e28-b7a2-6d8866ac3748 | ||||||
| SOA | catcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1780589169 | ||||||
Subdomains
mail.cpp.nu |
Same first word
Similar names
DNS History
11 records (6 active, 5 former)
○NSns1.enaserver.com2015-06-25 → 2017-01-12 · 4 obs
● 2017-01-12 00:44:50
○ 2026-02-17 00:34:08
○ 2026-06-04 16:28:40
●NSns1.worldcastdns.se2026-02-17 → 2026-06-04 · 3 obs
● 2026-02-17 00:34:08
● 2026-06-04 16:28:40
○NSns2.enaserver.com2015-06-25 → 2017-01-12 · 4 obs
● 2017-01-12 00:44:50
○ 2026-02-17 00:34:08
○ 2026-06-04 16:28:40
●NSns2.worldcastdns.com2026-02-17 → 2026-06-04 · 3 obs
● 2026-02-17 00:34:08
● 2026-06-04 16:28:40
●NSns3.worldcastdns.eu2026-02-17 → 2026-06-04 · 3 obs
● 2026-02-17 00:34:08
● 2026-06-04 16:28:40
●NSns4.worldcastdns.us2026-02-17 → 2026-06-04 · 3 obs
● 2026-02-17 00:34:08
● 2026-06-04 16:28:40
○MXmail.cpp.nu2015-06-25 → 2017-01-12 · 4 obs
● 2017-01-12 00:44:50
○ 2026-02-17 00:34:08
○ 2026-06-04 16:28:40
●MXmail.smartemail.se2026-02-17 → 2026-06-04 · 3 obs
● 2026-02-17 00:34:08
● 2026-06-04 16:28:40
○A178.21.72.1682015-06-25 → 2017-01-12 · 7 obs
○ 2015-11-05 19:41:44
○ 2016-04-07 00:24:08
● 2016-07-05 12:04:48
● 2017-01-12 00:44:50
○ 2026-02-17 00:34:08
○ 2026-06-04 16:28:40
●A178.21.73.1122026-02-17 → 2026-06-04 · 3 obs
● 2026-02-17 00:34:08
● 2026-06-04 16:28:40
○A188.126.72.1522015-11-05 → 2016-04-07 · 5 obs
● 2015-11-05 19:41:44
● 2016-04-07 00:24:08
○ 2016-07-05 12:04:48
○ 2026-06-04 16:28:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | a.ns.nu, c.ns.nu, d.ns.nu, m.ns.nu... | 12 records |
| cpp.nu | ns1.worldcastdns.se, ns2.worldcastdns.com, ns3.worldcastdns.eu, ns4.worldcastdns.us | - |
✅ Authoritative Response
Server:51.75.73.106
NS records: ns1.worldcastdns.se, ns2.worldcastdns.com, ns3.worldcastdns.eu, ns4.worldcastdns.us
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cpp.nu (unsigned zone)
⏱️ Timing
Total: 2395ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 178.21.73.112 |
| NS | 4 | ns3.worldcastdns.eu, ns1.worldcastdns.se... |
| MX | 1 | mail.smartemail.se (pri: 10) |
| TXT | 1 | v=spf1 a mx a:smtp2.smartemail.se a:smtp |
| SOA | 1 | ns1.worldcastdns.se hostmaster.cpp.nu |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.ns.nu, c.ns.nu, d.ns.nu...)
Analysis
Hierarchy
cpp.nu is a parent domain of mail.cpp.nu.
IP Addresses
cpp.nu resolves to just one IP address, 178.21.73.112.
Two other host names, along with apeli.se, tanemb.se and ljungkrantz.eu, also share IP numbers with cpp.nu.
Name Servers
cpp.nu carries NS records pointing to 4 name servers: ns2.worldcastdns.com, ns3.worldcastdns.eu, ns1.worldcastdns.se and ns4.worldcastdns.us.
cpp.nu shares at least some of its name servers with other domains, including wal.se, ilmonte.nu, mvusab.se and two others.
These name servers co-occur with ns1.admax.se, ns1.elitdns.se, ns2.admax.se and seven other name servers on a regular basis.
Host names that have two IP addresses:
ns3.worldcastdns.eu maps to two IP addresses — 51.75.73.106 and 2001:41d0:701:1100::2522.
ns1.worldcastdns.se maps to two IP addresses — 178.21.72.132 and 2a04:780:4::8.
ns4.worldcastdns.us maps to two IP addresses — 192.99.70.212 and 2607:5300:201:3100::55f9.
Host names with one IP number:
ns2.worldcastdns.com points to the IP address 178.73.214.157.
Mail Servers
The sole mail server for cpp.nu is mail.smartemail.se.
Among the domains sharing a mail server setup with cpp.nu are vallingbyfh.se, ibag.se, cegewe.se and two others.
There is at least a partial overlap in mail servers between cpp.nu and other domains like kornhamnstorg.com, tungelstaif.se and coagu-chek.se.
There is one IP number for mail.smartemail.se: 185.88.136.52.