offbyone.dk - dns.ninja

offbyone.dk

DNSSEC🔒 Signed (DS record present)
A138.201.57.159🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4
NSns01.one.com ⭐
A2001:67c:28cc::10ONECOM-INFRA2001:67c:28cc::/48
PTRns01.one.com
A195.206.121.10ONECOM-INFRA195.206.121.0/24
NSns02.one.com
A2001:67c:3c0::10🇩🇰 ONECOM2001:67c:3c0::/48
PTRns02.one.com
A185.10.11.10ONECOM185.10.11.0/24
MXmx1.pub.mailpod11-cph3.one.com ⭐
A104.37.34.230🇩🇰 ONECOM104.37.32.0/21 One.com A/S
MXmx2.pub.mailpod11-cph3.one.com ⭐
A104.37.34.231🇩🇰 ONECOM104.37.32.0/21 One.com A/S
MXmx3.pub.mailpod11-cph3.one.com ⭐
A104.37.34.232🇩🇰 ONECOM104.37.32.0/21 One.com A/S
MXmx4.pub.mailpod11-cph3.one.com ⭐
A104.37.34.233🇩🇰 ONECOM104.37.32.0/21 One.com A/S
SOAns01.one.comhostmaster@one.com 2026-05-30 #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 1782637201localtime Sun Jun 28 11:00:01 2026gmtime Sun Ju...
SOAb.nic.dktech@punktum.dk serial=1782637201

PTR for

159.57.201.138.in-addr.arpa

Same first word

offbyone.us
offbyone.org
offbyone.dk
offbyone.net
offbyone.ca
offbyone.de

DNS History

17 records (7 active, 10 former)

20162017201820192020202120222023202420252026NSns01.one.comns02.one.comns1.gratisdns.dkns2.gratisdns.dkns3.gratisdns.dkns4.gratisdns.dkns5.gratisdns.dkMXmx1.pub.mailpod11-cph3.one.commx2.pub.mailpod11-cph3.one.commx3.pub.mailpod11-cph3.one.commx4.pub.mailpod11-cph3.one.commail.offbyone.dkmx1.spamfilter.ccmx2.spamfilter.ccmx3.spamfilter.ccA138.201.57.15946.4.102.4
●NSns01.one.com2026-05-21 → 2026-06-28 · 3 obs
○ 2021-11-01 17:00:38
● 2026-05-21 22:04:08
● 2026-06-28 09:36:14
●NSns02.one.com2026-05-21 → 2026-06-28 · 3 obs
○ 2021-11-01 17:00:38
● 2026-05-21 22:04:08
● 2026-06-28 09:36:14
○NSns1.gratisdns.dk2015-07-20 → 2021-11-01 · 4 obs
● 2015-07-20 06:05:44
● 2021-11-01 17:00:38
○ 2026-05-21 22:04:08
○ 2026-06-28 09:36:14
○NSns2.gratisdns.dk2015-07-20 → 2021-11-01 · 4 obs
● 2015-07-20 06:05:44
● 2021-11-01 17:00:38
○ 2026-05-21 22:04:08
○ 2026-06-28 09:36:14
○NSns3.gratisdns.dk2015-07-20 → 2021-11-01 · 4 obs
● 2015-07-20 06:05:44
● 2021-11-01 17:00:38
○ 2026-05-21 22:04:08
○ 2026-06-28 09:36:14
○NSns4.gratisdns.dk2015-07-20 → 2021-11-01 · 4 obs
● 2015-07-20 06:05:44
● 2021-11-01 17:00:38
○ 2026-05-21 22:04:08
○ 2026-06-28 09:36:14
○NSns5.gratisdns.dk2015-07-20 → 2021-11-01 · 4 obs
● 2015-07-20 06:05:44
● 2021-11-01 17:00:38
○ 2026-05-21 22:04:08
○ 2026-06-28 09:36:14
○MXmail.offbyone.dk2016-06-27 → 2017-06-11 · 5 obs
○ 2016-03-09 05:36:04
● 2016-06-27 09:38:30
● 2017-06-11 09:41:54
○ 2021-11-01 17:00:38
○ 2026-06-28 09:36:14
●MXmx1.pub.mailpod11-cph3.one.com2026-05-21 → 2026-06-28 · 3 obs
○ 2021-11-01 17:00:38
● 2026-05-21 22:04:08
● 2026-06-28 09:36:14
○MXmx1.spamfilter.cc2015-07-20 → 2021-11-01 · 7 obs
● 2015-07-20 06:05:44
● 2016-03-09 05:36:04
○ 2016-06-27 09:38:30
○ 2017-06-11 09:41:54
● 2021-11-01 17:00:38
○ 2026-05-21 22:04:08
○ 2026-06-28 09:36:14
●MXmx2.pub.mailpod11-cph3.one.com2026-05-21 → 2026-06-28 · 3 obs
○ 2021-11-01 17:00:38
● 2026-05-21 22:04:08
● 2026-06-28 09:36:14
○MXmx2.spamfilter.cc2021-11-01 → 2021-11-01 · 4 obs
○ 2017-06-11 09:41:54
● 2021-11-01 17:00:38
○ 2026-05-21 22:04:08
○ 2026-06-28 09:36:14
●MXmx3.pub.mailpod11-cph3.one.com2026-05-21 → 2026-06-28 · 3 obs
○ 2021-11-01 17:00:38
● 2026-05-21 22:04:08
● 2026-06-28 09:36:14
○MXmx3.spamfilter.cc2021-11-01 → 2021-11-01 · 4 obs
○ 2017-06-11 09:41:54
● 2021-11-01 17:00:38
○ 2026-05-21 22:04:08
○ 2026-06-28 09:36:14
●MXmx4.pub.mailpod11-cph3.one.com2026-05-21 → 2026-06-28 · 3 obs
○ 2021-11-01 17:00:38
● 2026-05-21 22:04:08
● 2026-06-28 09:36:14
●A138.201.57.1592016-06-27 → 2026-06-28 · 3 obs
○ 2016-03-09 05:36:04
● 2016-06-27 09:38:30
● 2026-06-28 09:36:14
○A46.4.102.42015-07-20 → 2016-03-09 · 4 obs
● 2015-07-20 06:05:44
● 2016-03-09 05:36:04
○ 2016-06-27 09:38:30
○ 2026-06-28 09:36:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkc.nic.dk, l.nic.dk, t.nic.dk, s.nic.dk...-
offbyone.dkns01.one.com, ns02.one.com-

✅ Authoritative Response

Server:185.10.11.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1094ms | Queries: -

📄 Records

TypeCountSample Data
A1138.201.57.159
NS2ns02.one.com, ns01.one.com
MX4mx4.pub.mailpod11-cph3.one.com (pri: 10), mx1.pub.mailpod11-cph3.one.com (pri: 10)...
SOA1ns01.one.com hostmaster.one.com

Analysis

IP Addresses

offbyone.dk resolves to one IP address: 138.201.57.159.

onbyone.dk, laser-inc.dk, orbesen.dk and two other host names share IP numbers with offbyone.dk.

Name Servers

DNS delegation for offbyone.dk points to two name servers: ns01.one.com and ns02.one.com.

offbyone.dk uses the same name servers as several other domains — among them vesterro.com, verjo.net, paatv.dk and two more.

ns01.one.com directs to 195.206.121.10 and 2001:67c:28cc::10. ns02.one.com directs to 185.10.11.10 and 2001:67c:3c0::10. Each host name carries two IP addresses.

Mail Servers

Mail for offbyone.dk is handled by four mail servers: mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com, mx3.pub.mailpod11-cph3.one.com and mx4.pub.mailpod11-cph3.one.com.

offbyone.dk has at least partial mail server overlap with other domains such as xn--skrum-tra.dk, basiccotton.dk, multishow.dk and two more.

Each of the four hosts mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com, mx3.pub.mailpod11-cph3.one.com and mx4.pub.mailpod11-cph3.one.com points to a single IP address — mx1.pub.mailpod11-cph3.one.com points to 104.37.34.230, mx2.pub.mailpod11-cph3.one.com points to 104.37.34.231, mx3.pub.mailpod11-cph3.one.com points to 104.37.34.232 and mx4.pub.mailpod11-cph3.one.com points to 104.37.34.233.