lessons.dk - robtex.com

lessons.dk

DNSSEC🔒 Signed (DS record present)
A93.191.156.228🇩🇰 team-blue-denmark93.191.152.0/21 ZITCOM A/S
PTRlinux322.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
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 2025-09-29 #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 1781709841localtime Wed Jun 17 17:24:01 2026gmtime Wed Ju...
SOAb.nic.dktech@punktum.dk serial=1781709841

Same first word

lessons.careers
lessons.limited
lessons.dk
lessons.it
lessons.biz
lessons.ru
lessons.com.au
lessons.pl
lessons.lt
lessons.us
lessons.uk
lessons.cc
lessons.eu
lessons.tv
lessons.be
lessons.com
lessons.co.za
lessons.co
lessons.trade
lessons.kz
lessons.me
lessons.ph
lessons.life
lessons.ie
lessons.info
lessons.cn
lessons.church
lessons.it.com
lessons.com.ua
lessons.world
lessons.su
lessons.com.sg
lessons.am
lessons.bargains
lessons.fr
lessons.de
lessons.photography
lessons.com.cn

Similar names

lessson.com
solsnes.no
olssens.com
elssons.com
slesson.com
snossel.com

DNS History

15 records (5 active, 10 former)

20162017201820192020202120222023202420252026NSns1.simply.comns2.simply.comns3.simply.comns.dandomain.dkns1.curanet.dkns2.curanet.dkns2.dandomain.dkns3.dandomain.dkMXmx.simply.combackup-mx.zitcom.dkmail.lessons.dkmx01.dandomain.dkA93.191.156.228165.227.159.76185.21.40.186
○NSns.dandomain.dk2018-01-29 → 2018-01-29 · 4 obs
○ 2016-03-29 02:38:08
● 2018-01-29 20:44:24
○ 2026-06-10 01:53:42
○ 2026-06-17 15:39:32
○NSns1.curanet.dk2015-04-29 → 2015-12-25 · 4 obs
● 2015-04-29 12:15:40
● 2015-12-25 14:22:52
○ 2016-03-29 02:38:08
○ 2026-06-17 15:39:32
●NSns1.simply.com2026-06-10 → 2026-06-17 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-06-17 15:39:32
○NSns2.curanet.dk2015-04-29 → 2015-12-25 · 4 obs
● 2015-04-29 12:15:40
● 2015-12-25 14:22:52
○ 2016-03-29 02:38:08
○ 2026-06-17 15:39:32
○NSns2.dandomain.dk2018-01-29 → 2018-01-29 · 4 obs
○ 2016-03-29 02:38:08
● 2018-01-29 20:44:24
○ 2026-06-10 01:53:42
○ 2026-06-17 15:39:32
●NSns2.simply.com2026-06-10 → 2026-06-17 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-06-17 15:39:32
○NSns3.dandomain.dk2018-01-29 → 2018-01-29 · 4 obs
○ 2016-03-29 02:38:08
● 2018-01-29 20:44:24
○ 2026-06-10 01:53:42
○ 2026-06-17 15:39:32
●NSns3.simply.com2026-06-10 → 2026-06-17 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-06-17 15:39:32
○MXbackup-mx.zitcom.dk2015-04-29 → 2015-12-25 · 4 obs
● 2015-04-29 12:15:40
● 2015-12-25 14:22:52
○ 2016-03-29 02:38:08
○ 2026-06-17 15:39:32
○MXmail.lessons.dk2015-04-29 → 2015-12-25 · 4 obs
● 2015-04-29 12:15:40
● 2015-12-25 14:22:52
○ 2016-03-29 02:38:08
○ 2026-06-17 15:39:32
●MXmx.simply.com2026-06-10 → 2026-06-17 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-06-17 15:39:32
○MXmx01.dandomain.dk2018-01-29 → 2018-01-29 · 4 obs
○ 2016-03-29 02:38:08
● 2018-01-29 20:44:24
○ 2026-06-10 01:53:42
○ 2026-06-17 15:39:32
○A165.227.159.762018-01-29 → 2018-01-29 · 4 obs
○ 2016-03-29 02:38:08
● 2018-01-29 20:44:24
○ 2026-06-10 01:53:42
○ 2026-06-17 15:39:32
○A185.21.40.1862015-04-29 → 2015-12-25 · 4 obs
● 2015-04-29 12:15:40
● 2015-12-25 14:22:52
○ 2016-03-29 02:38:08
○ 2026-06-17 15:39:32
●A93.191.156.2282026-06-10 → 2026-06-17 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-06-17 15:39:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkh.nic.dk, s.nic.dk, c.nic.dk, t.nic.dk...-
lessons.dkns2.simply.com, ns3.simply.com, ns1.simply.com-

✅ Authoritative Response

Server:185.25.141.15

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1903ms | Queries: -

📄 Records

TypeCountSample Data
A193.191.156.228
NS3ns2.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

lessons.dk resolves to one IP address: 93.191.156.228.

larkangens.se, omniterm.se, kasperson.se and two other host names share IP numbers with lessons.dk.

Name Servers

DNS for lessons.dk is handled by three authoritative name servers: ns1.simply.com, ns2.simply.com and ns3.simply.com.

lessons.dk shares at least some of its name servers with other domains, including mgirevision.dk, ehlershjemmet.dk, olesloth.dk and two others.

These name servers are frequently seen alongside the name servers ns4.simply.com.

Hostnames that resolve to two IP addresses:

ns1.simply.com has two IP addresses: 91.197.248.78 and 2a02:2339:1:15c::4562:4562.

ns2.simply.com has two IP addresses: 185.25.141.15 and 2a02:2339:4006:101::4562:4562.

Hosts with just one IP address:

ns3.simply.com directs to 91.197.248.79.

Mail Servers

Mail for lessons.dk is handled by a single mail server, mx.simply.com.

lessons.dk uses an identical mail server configuration to several other domains — among them rens.dk, tagetvalg.dk, steroider.net and two more.

lessons.dk shares at least some of its mail servers with other domains, such as overallapps.com and promarketing.dk.

mx.simply.com has exactly one IP number: 94.231.106.20.