lessons.dk - dns.ninja

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 1783654741localtime Fri Jul 10 05:39:01 2026gmtime Fri Ju...
SOAb.nic.dktech@punktum.dk serial=1783654741

Subdomains

mail.lessons.dk

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.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
○ 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
●NSns1.simply.com2026-06-10 → 2026-07-10 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
●NSns2.simply.com2026-06-10 → 2026-07-10 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
●NSns3.simply.com2026-06-10 → 2026-07-10 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
●MXmx.simply.com2026-06-10 → 2026-07-10 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
○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
○ 2026-07-10 04:03:42
●A93.191.156.2282026-06-10 → 2026-07-10 · 3 obs
○ 2018-01-29 20:44:24
● 2026-06-10 01:53:42
● 2026-07-10 04:03:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...-
lessons.dkns1.simply.com, ns2.simply.com, ns3.simply.com-

✅ Authoritative Response

Server:185.25.141.15

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1163ms | Queries: -

📄 Records

TypeCountSample Data
A193.191.156.228
NS3ns3.simply.com, ns2.simply.com...
MX1mx.simply.com (pri: 10)
TXT1v=spf1 include:spf.simply.com -all
SOA1ns1.simply.com hostmaster.simply.com

Analysis

Hierarchy

mail.lessons.dk is a subdomain of lessons.dk.

IP Addresses

lessons.dk resolves to just one IP address, 93.191.156.228.

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

Name Servers

Three name servers are authoritative for lessons.dk: ns1.simply.com, ns2.simply.com and ns3.simply.com.

The name servers of lessons.dk overlap at least partially with those of other domains — among them mgirevision.dk, ehlershjemmet.dk, olesloth.dk and two more.

These name servers commonly appear in combination with the name servers ns4.simply.com.

Host names that have two IP addresses:

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

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

Host names that point to one IP address:

ns3.simply.com points to the IP address 91.197.248.79.

Mail Servers

The sole mail server for lessons.dk is mx.simply.com.

Among the domains sharing a mail server setup with lessons.dk are rens.dk, tagetvalg.dk, steroider.net and two others.

The mail servers for lessons.dk overlap at least partially with those of other domains, including overallapps.com and promarketing.dk.

There is one IP number for mx.simply.com: 94.231.106.20.