cpp.nu - robtex.com
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 | mx1.admax.se ⭐ | ||||||
| A | 178.21.73.55🇸🇪 ADMAX178.21.73.0/24 | ||||||
| PTR | mx1.admax.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 | id:ef5fb765-9978-4e8e-a6fa-5b655bf68918 | ||||||
| TXT | NU zone update: 2026-07-05 00:42:36 +0000 (EPOCH 1783212156) (auto) | ||||||
| SOA | catcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1783212206 | ||||||
Subdomains
mail.cpp.nu |
Same first word
Similar names
DNS History
12 records (6 active, 6 former)
○NSns1.enaserver.com2015-06-25 → 2017-01-12 · 4 obs
● 2017-01-12 00:44:50
○ 2026-02-17 00:34:08
○ 2026-07-05 01:02:00
●NSns1.worldcastdns.se2026-02-17 → 2026-07-05 · 3 obs
● 2026-02-17 00:34:08
● 2026-07-05 01:02:00
○NSns2.enaserver.com2015-06-25 → 2017-01-12 · 4 obs
● 2017-01-12 00:44:50
○ 2026-02-17 00:34:08
○ 2026-07-05 01:02:00
●NSns2.worldcastdns.com2026-02-17 → 2026-07-05 · 3 obs
● 2026-02-17 00:34:08
● 2026-07-05 01:02:00
●NSns3.worldcastdns.eu2026-02-17 → 2026-07-05 · 3 obs
● 2026-02-17 00:34:08
● 2026-07-05 01:02:00
●NSns4.worldcastdns.us2026-02-17 → 2026-07-05 · 3 obs
● 2026-02-17 00:34:08
● 2026-07-05 01:02:00
○MXmail.cpp.nu2015-06-25 → 2017-01-12 · 4 obs
● 2017-01-12 00:44:50
○ 2026-02-17 00:34:08
○ 2026-07-05 01:02:00
○MXmail.smartemail.se2026-02-17 → 2026-06-04 · 5 obs
● 2026-02-17 00:34:08
● 2026-06-04 16:28:38
○ 2026-07-05 01:01:58
○ 2026-07-05 01:02:00
●MXmx1.admax.se2026-07-05 → 2026-07-05 · 3 obs
● 2026-07-05 01:01:58
● 2026-07-05 01:02:00
○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
○ 2026-07-05 01:02:00
●A178.21.73.1122026-02-17 → 2026-07-05 · 3 obs
● 2026-02-17 00:34:08
● 2026-07-05 01:02:00
○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
○ 2026-07-05 01:02:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | m.ns.nu, z.ns.nu, c.ns.nu, d.ns.nu... | - |
| 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: 1296ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 178.21.73.112 |
| NS | 4 | ns1.worldcastdns.se, ns2.worldcastdns.com... |
| MX | 1 | mx1.admax.se (pri: 10) |
| TXT | 1 | v=spf1 a mx a:smtp2.smartemail.se a:smtp |
| SOA | 1 | ns1.worldcastdns.se hostmaster.cpp.nu |
Analysis
Hierarchy
The domain mail.cpp.nu falls under the parent cpp.nu.
IP Addresses
cpp.nu directs to one IP number, which is 178.21.73.112.
Among the host names that share IP numbers with cpp.nu are apeli.se, tanemb.se, newlife.nu and two others.
Name Servers
The domain cpp.nu is delegated to these four name servers: ns2.worldcastdns.com, ns3.worldcastdns.eu, ns1.worldcastdns.se and ns4.worldcastdns.us.
At least some of cpp.nu's name servers are shared with other domains, for example wal.se, ilmonte.nu, mvusab.se and two more.
These name servers tend to co-occur with ns1.admax.se, ns1.elitdns.se, ns2.admax.se and 7 other name servers in the same DNS delegations.
Hosts with two IP numbers each:
ns3.worldcastdns.eu resolves to two addresses: 51.75.73.106 and 2001:41d0:701:1100::2522.
ns1.worldcastdns.se resolves to two addresses: 178.21.72.132 and 2a04:780:4::8.
ns4.worldcastdns.us resolves to two addresses: 192.99.70.212 and 2607:5300:201:3100::55f9.
Hosts that resolve to one IP address:
The hostname ns2.worldcastdns.com resolves to 178.73.214.157.
Mail Servers
cpp.nu routes its mail through a single mail server, mx1.admax.se.
cpp.nu has the same mail server arrangement as a number of other domains, for example vallingbyfh.se, ibag.se, skaraborg.com and two more.
cpp.nu shares at least some of its mail servers with other domains — for example tungelstaif.se, ilmonte.eu, agenza.se and two more.
mx1.admax.se carries a single IP number, which is 178.21.73.55.