2403.dk - robtex.com

2403.dk

DNSSEC🔒 Signed (DS record present)
A93.191.156.108🇩🇰 team-blue-denmark93.191.152.0/21 ZITCOM A/S
PTRlinux229.unoeuro.com
NSns1.simply.com ⭐ 🔒
A2a02:2339:1:15c::4562:4562🇩🇰 team-blue-denmark2a02:2339::/36
PTRns1.simply.com
A91.197.248.78🇩🇰 team-blue-denmark91.197.248.0/22
PTRns1.simply.com
NSns2.simply.com 🔒
A2a02:2339:4006:101::4562:4562🇩🇰 team-blue-denmark2a02:2339:4000::/34
PTRns2.simply.com
A185.25.141.15🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S
PTRns2.simply.com
NSns3.simply.com 🔒
A91.197.248.79🇩🇰 team-blue-denmark91.197.248.0/22
PTRns3.simply.com
NSns4.simply.com 🔒
A91.197.248.80🇩🇰 team-blue-denmark91.197.248.0/22
PTRns4.simply.com
MXmx.simply.com ⭐
A94.231.106.20🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S
PTRmx.simply.com
TXTv=spf1 include:spf.simply.com ?all
SOAns1.simply.comhostmaster@simply.com 2025-04-23 #0

dk

DNSSEC🔒 Signed (DS record present)
NSb.nic.dk ⭐ 🔒
NSc.nic.dk 🔒
NSh.nic.dk 🔒
NSl.nic.dk 🔒
NSs.nic.dk 🔒
NSt.nic.dk 🔒
TXTDK zone updateEpoch 1771291441localtime Tue Feb 17 02:24:01 2026gmtime Tue Fe...
SOAb.nic.dktech@punktum.dk serial=1771291261

Same first word

2403.com.cn
2403.net
2403.de

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DNS History

11 records (6 active, 5 former)

20162017201820192020202120222023202420252026NSns1.simply.comns2.simply.comns3.simply.comns4.simply.comns1.surf-town.netns2.surf-town.netns3.surf-town.netMXmx.simply.commail18.surftown.dkA93.191.156.108212.97.132.165
●NSns1.simply.com2026-03-18 → 2026-03-18 · 2 obs
○ 2017-07-04 10:17:10
● 2026-03-18 03:21:34
○NSns1.surf-town.net2015-07-15 → 2017-07-04 · 3 obs
● 2015-07-15 06:03:20
● 2017-07-04 10:17:10
○ 2026-03-18 03:21:34
●NSns2.simply.com2026-03-18 → 2026-03-18 · 2 obs
○ 2017-07-04 10:17:10
● 2026-03-18 03:21:34
○NSns2.surf-town.net2015-07-15 → 2017-07-04 · 3 obs
● 2015-07-15 06:03:20
● 2017-07-04 10:17:10
○ 2026-03-18 03:21:34
●NSns3.simply.com2026-03-18 → 2026-03-18 · 2 obs
○ 2017-07-04 10:17:10
● 2026-03-18 03:21:34
○NSns3.surf-town.net2015-07-15 → 2017-07-04 · 3 obs
● 2015-07-15 06:03:20
● 2017-07-04 10:17:10
○ 2026-03-18 03:21:34
●NSns4.simply.com2026-03-18 → 2026-03-18 · 2 obs
○ 2017-07-04 10:17:10
● 2026-03-18 03:21:34
○MXmail18.surftown.dk2015-07-15 → 2017-07-04 · 3 obs
● 2015-07-15 06:03:20
● 2017-07-04 10:17:10
○ 2026-03-18 03:21:34
●MXmx.simply.com2026-03-18 → 2026-03-18 · 2 obs
○ 2017-07-04 10:17:10
● 2026-03-18 03:21:34
○A212.97.132.1652015-07-15 → 2017-07-04 · 3 obs
● 2015-07-15 06:03:20
● 2017-07-04 10:17:10
○ 2026-03-18 03:21:34
●A93.191.156.1082026-03-18 → 2026-03-18 · 2 obs
○ 2017-07-04 10:17:10
● 2026-03-18 03:21:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...-
2403.dkns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com-

✅ Authoritative Response

Server: 91.197.248.78

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1000ms | Queries: -

📄 Records

TypeCountSample Data
A193.191.156.108
NS4ns3.simply.com, ns1.simply.com...
MX1mx.simply.com (pri: 10)
TXT1v=spf1 include:spf.simply.com ?all
SOA1ns1.simply.com hostmaster.simply.com

Analysis

IP Addresses

2403.dk points to a single IP number: 93.191.156.108.

Other host names, for instance okkels.eu, 174.dk, exodraft.be, vida.dk and bjerregaard.biz share IP numbers with 2403.dk.

Name Servers

2403.dk is delegated to four name servers: ns1.simply.com, ns2.simply.com, ns3.simply.com and ns4.simply.com.

2403.dk at least partially shares name servers with other domains, for instance karlachat.com, moveva.se, acinfo.dk, treflyttefirmaer.dk and artpixel.dk.

Two IP numbers per host:

Host ns1.simply.com points to 2a02:2339:1:15c::4562:4562 and 91.197.248.78.

Host ns2.simply.com points to 2a02:2339:4006:101::4562:4562 and 185.25.141.15.

One IP number per host:

Host ns3.simply.com points to 91.197.248.79.

Host ns4.simply.com points to 91.197.248.80.

Mail Servers

2403.dk is handled by a single mail server, mx.simply.com.

2403.dk uses the same mail server configuration as other domains, such as geggus.dk, nime.dk, fanton.dk, carmount.dk and 131313.se.

2403.dk shares some mail servers with other domains at least partially, for example danmag.dk.

mx.simply.com points to a single IP: 94.231.106.20.