usrtech.dk - dns.ninja

usrtech.dk

DNSSEC🔒 Signed (DS record present)
A172.104.203.63🇩🇪 AKAMAI-LINODE-AP172.104.202.0/23 Akamai Technologies
PTRmail.weblarsen.dk
NSns01.one.com ⭐
A2001:67c:28cc::10ONECOM-INFRA2001:67c:28cc::/48
PTRns01.one.com
A195.206.121.10ONECOM-INFRA195.206.121.0/24
PTRns01.one.com
NSns02.one.com
A2001:67c:3c0::10🇩🇰 ONECOM2001:67c:3c0::/48
PTRns02.one.com
A185.10.11.10ONECOM185.10.11.0/24
PTRns02.one.com
MXmail.usrtech.dk ⭐
A172.104.203.63🇩🇪 AKAMAI-LINODE-AP172.104.202.0/23 Akamai Technologies
PTRmail.weblarsen.dk
MXmxbackup.usrtech.dk(20)
A172.104.203.63🇩🇪 AKAMAI-LINODE-AP172.104.202.0/23 Akamai Technologies
PTRmail.weblarsen.dk
TXTv=spf1 mx ip4:172.104.152.106 ip4:139.162.130.163 ip4:172.104.203.63 -all
TXTHosted by Weblarsen
SOAns01.one.comhostmaster@one.com 2026-03-25 #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 1781700121localtime Wed Jun 17 14:42:01 2026gmtime Wed Ju...
SOAb.nic.dktech@punktum.dk serial=1781700121

Subdomains

mxbackup.usrtech.dk
mail.usrtech.dk

Same first word

usrtech.dk

Similar names

tuscher.dk
usrecht.de
rustech.com
rutechs.com
truecsh.com
treusch.info
techrus.co.nz
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techrus.ro
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usrecht.org
thrusec.com
crushet.com
surtech.co.za
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ersucht.com
rustech.co.jp
usrecht.com
surtech.ca
usrecht.net
ersucht.info
ersucht.de
urtechs.com
estruch.fr
usrecht.info
reshuct.ru
rustech.ru
schurte.li
techsur.net
rutsche.at
schuter.com
techrus.ru
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rchuset.se
rethcus.com
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retusch.eu
treusch.at
tuscher.org
techsur.com
ruetsch.com
tuscher.at
screuth.de
surtech.edu.in
treusch.net
ruetsch.net
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hucrest.com
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surtech.re.kr
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techrus.com
treusch.ch
tuchers.pl
suchert.de
suchert.info
tuscher.ch
surtech.jp
suchter.net
crushet.myshopify.com
treusch.co.at
surtech.net
treusch.org
techrus.de
truehcs.org
tecrush.com
surtech.co.jp
suchter.sk
surtech.de
surtech.us
treusch.eu
surtech.dk
surtech.com
rutsche.de
sutcher.com
techsur.app
rustech.host
techsur.es
rushtec.com
techrus.ca
suchter.com
surtech.co.uk
surtech.com.au
techrus.net

DNS History

14 records (5 active, 9 former)

20162017201820192020202120222023202420252026NSns01.one.comns02.one.comns1.gratisdns.dkns2.gratisdns.dkns3.gratisdns.dkns4.gratisdns.dkns5.gratisdns.dkMXmail.usrtech.dkmxbackup.usrtech.dkmx.junkemailfilter.commx.junkemailfilter.netA172.104.203.6350.63.202.10489.221.166.114
●NSns01.one.com2026-02-15 → 2026-06-17 · 3 obs
○ 2017-07-31 19:46:58
● 2026-02-15 04:01:36
● 2026-06-17 13:04:26
●NSns02.one.com2026-02-15 → 2026-06-17 · 3 obs
○ 2017-07-31 19:46:58
● 2026-02-15 04:01:36
● 2026-06-17 13:04:26
○NSns1.gratisdns.dk2015-08-13 → 2017-07-31 · 4 obs
● 2015-08-13 11:01:10
● 2017-07-31 19:46:58
○ 2026-02-15 04:01:36
○ 2026-06-17 13:04:26
○NSns2.gratisdns.dk2015-08-13 → 2017-07-31 · 4 obs
● 2015-08-13 11:01:10
● 2017-07-31 19:46:58
○ 2026-02-15 04:01:36
○ 2026-06-17 13:04:26
○NSns3.gratisdns.dk2015-08-13 → 2017-07-31 · 4 obs
● 2015-08-13 11:01:10
● 2017-07-31 19:46:58
○ 2026-02-15 04:01:36
○ 2026-06-17 13:04:26
○NSns4.gratisdns.dk2015-08-13 → 2017-07-31 · 4 obs
● 2015-08-13 11:01:10
● 2017-07-31 19:46:58
○ 2026-02-15 04:01:36
○ 2026-06-17 13:04:26
○NSns5.gratisdns.dk2015-08-13 → 2017-07-31 · 4 obs
● 2015-08-13 11:01:10
● 2017-07-31 19:46:58
○ 2026-02-15 04:01:36
○ 2026-06-17 13:04:26
●MXmail.usrtech.dk2015-08-13 → 2026-06-17 · 2 obs
● 2015-08-13 11:01:10
● 2026-06-17 13:04:26
○MXmx.junkemailfilter.com2015-08-13 → 2017-07-31 · 4 obs
● 2015-08-13 11:01:10
● 2017-07-31 19:46:58
○ 2026-02-15 04:01:36
○ 2026-06-17 13:04:26
○MXmx.junkemailfilter.net2015-08-13 → 2017-07-31 · 4 obs
● 2015-08-13 11:01:10
● 2017-07-31 19:46:58
○ 2026-02-15 04:01:36
○ 2026-06-17 13:04:26
●MXmxbackup.usrtech.dk2015-08-13 → 2026-06-17 · 2 obs
● 2015-08-13 11:01:10
● 2026-06-17 13:04:26
●A172.104.203.632026-02-15 → 2026-06-17 · 3 obs
○ 2017-07-31 19:46:58
● 2026-02-15 04:01:36
● 2026-06-17 13:04:26
○A50.63.202.1042015-08-13 → 2015-08-13 · 3 obs
● 2015-08-13 11:01:10
○ 2017-05-06 21:48:06
○ 2026-06-17 13:04:26
○A89.221.166.1142015-08-13 → 2017-07-31 · 4 obs
● 2015-08-13 11:01:10
● 2017-07-31 19:46:58
○ 2026-02-15 04:01:36
○ 2026-06-17 13:04:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkl.nic.dk, s.nic.dk, t.nic.dk, b.nic.dk...-
usrtech.dkns01.one.com, ns02.one.com-

✅ 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: 875ms | Queries: -

📄 Records

TypeCountSample Data
A1172.104.203.63
NS2ns01.one.com, ns02.one.com
MX2mxbackup.usrtech.dk (pri: 20), mail.usrtech.dk (pri: 10)
TXT2v=spf1 mx ip4:172.104.152.106 ip4:139.16, Hosted by Weblarsen
SOA1ns01.one.com hostmaster.one.com

Analysis

Hierarchy

The parent domain of mxbackup.usrtech.dk and mail.usrtech.dk is usrtech.dk.

IP Addresses

usrtech.dk directs to one IP number, which is 172.104.203.63.

Among the host names that share IP numbers with usrtech.dk are mail.weblarsen.dk, mail.vagtadmin.dk, weblarsen.dk and two others.

Name Servers

usrtech.dk is served by two delegated name servers, ns01.one.com and ns02.one.com.

usrtech.dk has the same name server delegation as a number of other domains, such as it-services.dk, dom-r.de, zhow.dk and two more.

The DNS delegation for usrtech.dk at least partly coincides with that of other domains, ctav.com being one example.

Each of the two host names carries two IP addresses: ns01.one.com points to 195.206.121.10 and 2001:67c:28cc::10, and ns02.one.com points to 185.10.11.10 and 2001:67c:3c0::10.

Mail Servers

The MX records for usrtech.dk point to two mail servers: mail.usrtech.dk and mxbackup.usrtech.dk.

mail.usrtech.dk and mxbackup.usrtech.dk share one IP address between them — 172.104.203.63.

These two host names — mail.usrtech.dk and mxbackup.usrtech.dk — each point to 172.104.203.63 IP addresses.