concentric.dk - dns.ninja

concentric.dk

DNSSEC⚠️ Not signed
A46.183.138.100🇩🇰 SENTIA46.183.138.0/24
NSns1.gigahost.dk ⭐
A46.183.139.31🇩🇰 SENTIA46.183.139.0/24
NSns2.gigahost.dk
A46.183.139.222🇩🇰 SENTIA46.183.139.0/24
PTRweb22.gigahost.dk
NSns3.gigahost.dk
A71.19.249.71🇨🇦 ESECUREDATACOM-171.19.249.0/24 eSecureData.com Inc.
NSns4.gigahost.dk
A51.79.215.130🇸🇬 OVH51.79.128.0/17 Hosting route
PTRns4.gigahost.dk
NSns5.gigahost.dk
A77.74.192.83🇬🇧 UKSERVERS-AS77.74.192.0/21 UK Dedicated Servers Limited
PTRns5.gigahost.dk
MXmx1.gigahost.dk ⭐
A46.183.139.11🇩🇰 SENTIA46.183.139.0/24
PTRmx1.gigahost.dk
MXmx2.gigahost.dk ⭐
A46.183.139.12🇩🇰 SENTIA46.183.139.0/24
PTRmx2.gigahost.dk
MXmx3.gigahost.dk ⭐
A46.183.139.13🇩🇰 SENTIA46.183.139.0/24
PTRmx3.gigahost.dk
TXTv=spf1 mx include:spf.gigahost.dk -all
TXTspf2.0/pra
SOAns1.gigahost.dkhostmaster@concentric.dk 2026-07-23 #1

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 1784978821localtime Sat Jul 25 13:27:01 2026gmtime Sat Ju...
SOAb.nic.dktech@punktum.dk serial=1784978821
WOT: SAFE (68/100)

Subdomains

riff.concentric.dk

Same first word

concentric.eu
concentric.ventures
concentric.design
concentric.co.nz
concentric.cn
concentric.co.uk
concentric.ca
concentric.co.jp
concentric.net
concentric.info
concentric.org
concentric.health
concentric.fr
concentric.io
concentric.com
concentric.in
concentric.us
concentric.vn
concentric.jp
concentric.agency
concentric.com.au
concentric.life
concentric.dk
concentric.it
concentric.global
concentric.ai
concentric.energy
concentric.de
concentric.je
concentric.cx

Similar names

centriccon.com
connectric.com
circonnect.com
ricconnect.com
concertinc.com
rciconnect.es
ictconcern.com
rciconnect.pt
concnetric.net
rciconnect.com

DNS History

23 records (9 active, 14 former)

20162017201820192020202120222023202420252026NSns1.gigahost.dkns2.gigahost.dkns3.gigahost.dkns4.gigahost.dkns5.gigahost.dkns1.gratisdns.dkns2.gratisdns.dkns3.gratisdns.dkns4.gratisdns.dkns5.gratisdns.dkMXmx1.gigahost.dkmx2.gigahost.dkmx3.gigahost.dkalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comA46.183.138.1002001:67c:3c0:12::5391.221.196.253
●NSns1.gigahost.dk2026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
○NSns1.gratisdns.dk2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
●NSns2.gigahost.dk2026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
○NSns2.gratisdns.dk2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
●NSns3.gigahost.dk2026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
○NSns3.gratisdns.dk2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
●NSns4.gigahost.dk2026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
○NSns4.gratisdns.dk2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
●NSns5.gigahost.dk2026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
○NSns5.gratisdns.dk2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
○MXalt1.aspmx.l.google.com2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
○MXalt2.aspmx.l.google.com2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
○MXaspmx.l.google.com2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
○MXaspmx2.googlemail.com2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
○MXaspmx3.googlemail.com2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
○MXaspmx4.googlemail.com2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
○MXaspmx5.googlemail.com2015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
●MXmx1.gigahost.dk2026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
●MXmx2.gigahost.dk2026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
●MXmx3.gigahost.dk2026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
○A2001:67c:3c0:12::532015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04
●A46.183.138.1002026-03-26 → 2026-07-25 · 3 obs
○ 2018-12-18 01:55:24
● 2026-03-26 08:35:16
● 2026-07-25 11:49:04
○A91.221.196.2532015-05-25 → 2018-12-18 · 4 obs
● 2015-05-25 22:20:46
● 2018-12-18 01:55:24
○ 2026-03-26 08:35:16
○ 2026-07-25 11:49:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...-
concentric.dkns5.gigahost.dk, ns2.gigahost.dk, ns1.gigahost.dk, ns4.gigahost.dk...5 records

✅ Authoritative Response

Server:46.183.139.31

NS records: ns5.gigahost.dk, ns2.gigahost.dk, ns1.gigahost.dk, ns4.gigahost.dk, ns3.gigahost.dk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concentric.dk (unsigned zone)

⏱️ Timing

Total: 2211ms | Queries: -

📄 Records

TypeCountSample Data
A146.183.138.100
NS5ns4.gigahost.dk, ns2.gigahost.dk...
MX3mx2.gigahost.dk (pri: 10), mx3.gigahost.dk (pri: 10)...
TXT2v=spf1 mx include:spf.gigahost.dk -all, spf2.0/pra
SOA1ns1.gigahost.dk hostmaster.concentric.dk

📌 Glue Records Collected

Total: 5

Out-of-bailiwick: 5 (ns5.gigahost.dk, ns4.gigahost.dk, ns3.gigahost.dk...)

Analysis

Hierarchy

riff.concentric.dk is a subdomain of concentric.dk.

IP Addresses

concentric.dk resolves to just one IP address, 46.183.138.100.

Two other host names, along with jbruun.net, cementbh.com and fodboldlogen.dk, also share IP numbers with concentric.dk.

Name Servers

concentric.dk delegates to five name servers: ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and two others.

The name servers of concentric.dk overlap at least partially with those of other domains — among them dalmark.dk, rhododendronpark.dk, solrodgolf.dk and two more.

These name servers commonly appear alongside the name servers ns4.gigahost.dk and ns5.gigahost.dk.

Host names that point to one IP address:

ns1.gigahost.dk has the IP address 46.183.139.31.

ns2.gigahost.dk has the IP address 46.183.139.222.

ns3.gigahost.dk has the IP address 71.19.249.71.

ns4.gigahost.dk has the IP address 51.79.215.130.

ns5.gigahost.dk has the IP address 77.74.192.83.

Mail Servers

Mail for concentric.dk is routed through three mail servers — mx1.gigahost.dk, mx2.gigahost.dk and mx3.gigahost.dk.

There is at least a partial MX overlap between concentric.dk and other domains, including ettena.dk, thefield.dk, family-fitness.dk and two others.

The hostnames mx1.gigahost.dk, mx2.gigahost.dk and mx3.gigahost.dk each resolve to a single IP: mx1.gigahost.dk → 46.183.139.11, mx2.gigahost.dk → 46.183.139.12, mx3.gigahost.dk → 46.183.139.13.