group-4u.com - robtex.com
group-4u.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 195.249.40.15🇩🇰 TDC195.249.0.0/16 Tele Danmark | ||||||
| NS | ns01.one.com ⭐ | ||||||
| A | 2001:67c:28cc::10ONECOM-INFRA2001:67c:28cc::/48 | ||||||
| PTR | ns01.one.com | ||||||
| A | 195.206.121.10ONECOM-INFRA195.206.121.0/24 | ||||||
| PTR | ns01.one.com | ||||||
| NS | ns02.one.com | ||||||
| A | 2001:67c:3c0::10🇩🇰 ONECOM2001:67c:3c0::/48 | ||||||
| PTR | ns02.one.com | ||||||
| A | 185.10.11.10ONECOM185.10.11.0/24 | ||||||
| PTR | ns02.one.com | ||||||
| MX | nn1p.nettonet.dk ⭐ | ||||||
| SOA | ns01.one.comhostmaster@one.com 2026-07-20 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786005709 | ||||||
Subdomains
mail.group-4u.com |
Same first word
group-4u.com |
DNS History
7 records (4 active, 3 former)
●NSns01.one.com2026-04-18 → 2026-08-06 · 3 obs
● 2026-04-18 04:24:04
● 2026-08-06 09:10:32
●NSns02.one.com2026-04-18 → 2026-08-06 · 3 obs
● 2026-04-18 04:24:04
● 2026-08-06 09:10:32
○NSns1.net2net.dk2008-03-20 → 2020-01-17 · 4 obs
● 2020-01-17 06:42:20
○ 2026-04-18 04:24:04
○ 2026-08-06 09:10:32
○NSns2.net2net.dk2008-03-20 → 2020-01-17 · 4 obs
● 2020-01-17 06:42:20
○ 2026-04-18 04:24:04
○ 2026-08-06 09:10:32
○MXmail.group-4u.com2008-03-20 → 2017-02-05 · 4 obs
● 2017-02-05 02:23:36
○ 2020-01-17 06:42:20
○ 2026-08-06 09:10:32
●MXnn1p.nettonet.dk2020-01-17 → 2026-08-06 · 3 obs
● 2020-01-17 06:42:20
● 2026-08-06 09:10:32
●A195.249.40.152008-03-20 → 2026-08-06 · 2 obs
● 2026-08-06 09:10:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net... | - |
| group-4u.com | ns01.one.com, ns02.one.com | 4 records |
✅ Authoritative Response
Server:195.206.121.10
NS records: ns01.one.com, ns02.one.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 369ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.249.40.15 |
| NS | 2 | ns01.one.com, ns02.one.com |
| MX | 1 | nn1p.nettonet.dk (pri: 100) |
| SOA | 1 | ns01.one.com hostmaster.one.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns01.one.com, ns01.one.com, ns02.one.com...)
Analysis
Hierarchy
group-4u.com serves as the parent of mail.group-4u.com.
IP Addresses
group-4u.com resolves to just one IP address, 195.249.40.15.
Host names like granau.dk are further examples that share IP numbers with group-4u.com.
Name Servers
Two name servers handle the delegation for group-4u.com: ns01.one.com and ns02.one.com.
group-4u.com shares its NS records with other domains, for example jpcm.de, mifmedia.de, pocopoco.nl and two others.
ns01.one.com and ns02.one.com both carry two IP addresses. The A records for ns01.one.com are 195.206.121.10 and 2001:67c:28cc::10; the A records for ns02.one.com are 185.10.11.10 and 2001:67c:3c0::10.
Mail Servers
The sole mail server for group-4u.com is nn1p.nettonet.dk.
Mail server setup for group-4u.com matches that of other domains, among them fonacare.com.