rt.dk - robtex.com

rt.dk

DNSSEC⚠️ Not signed
A104.19.154.92Cloudflare104.19.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSprimary.infoserv.dk
A2a01:7e01::f03c:91ff:fe59:943d🇩🇪 AKAMAI-LINODE-AP2a01:7e01::/32 Akamai Technologies
A139.162.157.8🇩🇪 AKAMAI-LINODE-AP139.162.128.0/19 Akamai Technologies
PTRmail2.ishost.dk
NSsecondary.infoserv.dk
A2a01:7e00::f03c:92ff:fe07:7dc2🇬🇧 AKAMAI-LINODE-AP2a01:7e00::/32 Akamai Technologies
A139.162.227.162🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies
PTRli1512-162.members.linode.com
MXrt-dk.mail.protection.outlook.com
A2a01:111:f403:ca04::9🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00601.inbound.protection.outlook.com
A2a01:111:f403:ca09::1🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as9pr07cu00301.inbound.protection.outlook.com
A2a01:111:f403:ca09::d🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as9pr05cu01305.inbound.protection.outlook.com
A2a01:111:f403:ca09::f🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am7pr05cu00307.inbound.protection.outlook.com
A52.101.68.36🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db5pr02cu00104.inbound.protection.outlook.com
A52.101.73.1🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am3pr04cu00501.inbound.protection.outlook.com
A52.101.73.12🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am4pr0401cu00104.inbound.protection.outlook.com
A52.101.73.28🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00204.inbound.protection.outlook.com
TXTMS=ms28078545
TXTv=spf1 ip4:92.241.223.205 ip4:86.52.51.215 include:spf.protection.outlook.com...
SOAprimary.infoserv.dkadmin@infoserv 2026-06-23 #25

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 1783773361localtime Sat Jul 11 14:36:01 2026gmtime Sat Ju...
SOAb.nic.dktech@punktum.dk serial=1783773361
WOT: SAFE (68/100)

Subdomains

Same first word

Similar names

DNS History

21 records (4 active, 17 former)

200920112013201520172019202120232025NSprimary.infoserv.dksecondary.infoserv.dkns1.dreamhost.comns1.herningfolkeblad.dkns1.mediatemple.netns1.parkingcrew.netns2.dreamhost.comns2.herningfolkeblad.dkns2.mediatemple.netns2.parkingcrew.netns3.dreamhost.comMXrt-dk.mail.protection.outlook.commail.h-email.netmail.rt.dkA104.19.154.92185.53.177.7185.53.178.7205.186.183.128217.195.185.12217.198.217.1769.163.157.35
NSns1.dreamhost.com2019-08-12 → 2019-09-21 · 5 obs
○ 2017-05-25 01:52:34
● 2019-08-12 13:57:26
● 2019-09-21 19:32:32
○ 2020-10-31 22:20:56
○ 2026-07-11 13:07:00
NSns1.herningfolkeblad.dk2008-11-15 → 2008-11-15 · 3 obs
● 2008-11-15 05:22:06
○ 2015-08-11 03:27:10
○ 2026-07-11 13:07:00
NSns1.mediatemple.net2016-11-27 → 2017-01-06 · 5 obs
○ 2016-08-27 09:06:04
● 2016-11-27 03:42:26
● 2017-01-06 23:29:38
○ 2017-05-23 02:52:56
○ 2026-07-11 13:07:00
NSns1.parkingcrew.net2015-08-11 → 2017-05-25 · 9 obs
○ 2008-11-15 05:22:06
● 2015-08-11 03:27:10
● 2016-08-27 09:06:04
○ 2016-11-27 03:42:26
○ 2017-01-06 23:29:38
● 2017-05-23 02:52:56
● 2017-05-25 01:52:34
○ 2019-08-12 13:57:26
○ 2026-07-11 13:07:00
NSns2.dreamhost.com2019-08-12 → 2019-09-21 · 5 obs
○ 2017-05-25 01:52:34
● 2019-08-12 13:57:26
● 2019-09-21 19:32:32
○ 2020-10-31 22:20:56
○ 2026-07-11 13:07:00
NSns2.herningfolkeblad.dk2008-11-15 → 2008-11-15 · 3 obs
● 2008-11-15 05:22:06
○ 2015-08-11 03:27:10
○ 2026-07-11 13:07:00
NSns2.mediatemple.net2016-11-27 → 2017-01-06 · 5 obs
○ 2016-08-27 09:06:04
● 2016-11-27 03:42:26
● 2017-01-06 23:29:38
○ 2017-05-23 02:52:56
○ 2026-07-11 13:07:00
NSns2.parkingcrew.net2015-08-11 → 2017-05-25 · 9 obs
○ 2008-11-15 05:22:06
● 2015-08-11 03:27:10
● 2016-08-27 09:06:04
○ 2016-11-27 03:42:26
○ 2017-01-06 23:29:38
● 2017-05-23 02:52:56
● 2017-05-25 01:52:34
○ 2019-08-12 13:57:26
○ 2026-07-11 13:07:00
NSns3.dreamhost.com2019-08-12 → 2019-09-21 · 5 obs
○ 2017-05-25 01:52:34
● 2019-08-12 13:57:26
● 2019-09-21 19:32:32
○ 2020-10-31 22:20:56
○ 2026-07-11 13:07:00
NSprimary.infoserv.dk2020-10-31 → 2026-07-11 · 3 obs
○ 2019-09-21 19:32:32
● 2020-10-31 22:20:56
● 2026-07-11 13:07:00
NSsecondary.infoserv.dk2020-10-31 → 2026-07-11 · 3 obs
○ 2019-09-21 19:32:32
● 2020-10-31 22:20:56
● 2026-07-11 13:07:00
MXmail.h-email.net2015-08-11 → 2017-05-25 · 9 obs
○ 2008-11-15 05:22:06
● 2015-08-11 03:27:10
● 2016-08-27 09:06:04
○ 2016-11-27 03:42:26
○ 2017-01-06 23:29:38
● 2017-05-23 02:52:56
● 2017-05-25 01:52:34
○ 2019-08-12 13:57:26
○ 2026-07-11 13:07:00
MXmail.rt.dk2016-11-27 → 2017-01-06 · 5 obs
○ 2016-08-27 09:06:04
● 2016-11-27 03:42:26
● 2017-01-06 23:29:38
○ 2017-05-23 02:52:56
○ 2026-07-11 13:07:00
MXrt-dk.mail.protection.outlook.com2020-10-31 → 2026-07-11 · 3 obs
○ 2019-08-12 13:57:26
● 2020-10-31 22:20:56
● 2026-07-11 13:07:00
A104.19.154.922026-02-18 → 2026-07-11 · 3 obs
○ 2021-05-04 20:44:34
● 2026-02-18 06:43:30
● 2026-07-11 13:07:00
A185.53.177.72015-08-11 → 2016-08-27 · 5 obs
○ 2008-11-15 05:22:06
● 2015-08-11 03:27:10
● 2016-08-27 09:06:04
○ 2016-11-27 03:42:26
○ 2026-07-11 13:07:00
A185.53.178.72017-05-23 → 2017-05-25 · 5 obs
○ 2017-01-06 23:29:38
● 2017-05-23 02:52:56
● 2017-05-25 01:52:34
○ 2019-08-12 13:57:26
○ 2026-07-11 13:07:00
A205.186.183.1282016-11-27 → 2017-01-06 · 5 obs
○ 2016-08-27 09:06:04
● 2016-11-27 03:42:26
● 2017-01-06 23:29:38
○ 2017-05-23 02:52:56
○ 2026-07-11 13:07:00
A217.195.185.122020-10-31 → 2021-05-04 · 5 obs
○ 2019-09-21 19:32:32
● 2020-10-31 22:20:56
● 2021-05-04 20:44:34
○ 2026-02-18 06:43:30
○ 2026-07-11 13:07:00
A217.198.217.172008-11-15 → 2008-11-15 · 3 obs
● 2008-11-15 05:22:06
○ 2015-08-11 03:27:10
○ 2026-07-11 13:07:00
A69.163.157.352019-08-12 → 2019-09-21 · 5 obs
○ 2017-05-25 01:52:34
● 2019-08-12 13:57:26
● 2019-09-21 19:32:32
○ 2020-10-31 22:20:56
○ 2026-07-11 13:07:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...-
rt.dksecondary.infoserv.dk, primary.infoserv.dk4 records

✅ Authoritative Response

Server:139.162.227.162

NS records: secondary.infoserv.dk, primary.infoserv.dk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rt.dk (unsigned zone)

⏱️ Timing

Total: 563ms | Queries: -

📄 Records

TypeCountSample Data
A1104.19.154.92
NS2primary.infoserv.dk, secondary.infoserv.dk
MX1rt-dk.mail.protection.outlook.com (pri:
TXT2MS=ms28078545, v=spf1 ip4:92.241.223.205 ip4:86.52.51.2
SOA1primary.infoserv.dk admin.infoserv

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (secondary.infoserv.dk, primary.infoserv.dk, secondary.infoserv.dk...)

Analysis

Hierarchy

rt.dk is a parent domain of www.rt.dk.

IP Addresses

rt.dk has exactly one IP address — 104.19.154.92.

souhnoun.com, mail.sev-rend.com, rgroupcpa.com plus two other host names have IP numbers in common with rt.dk.

Name Servers

DNS delegation for rt.dk points to two name servers: primary.infoserv.dk and secondary.infoserv.dk.

The name server configuration of rt.dk is shared with other domains, for instance gardinlis.dk, infomail.dk, randersegnsteater.dk and two others.

primary.infoserv.dk directs to 139.162.157.8 and 2a01:7e01::f03c:91ff:fe59:943d. secondary.infoserv.dk directs to 139.162.227.162 and 2a01:7e00::f03c:92ff:fe07:7dc2. Each host name carries two IP addresses.

Mail Servers

rt.dk uses one mail server — rt-dk.mail.protection.outlook.com.

rt-dk.mail.protection.outlook.com has 8 IP addresses: 52.101.68.36, 52.101.73.1, 52.101.73.12 plus 5 more.