computerscience.dk - dns.ninja

`computerscience.dk`

DNSSEC	🔒 Signed (DS record present)
NS	`arthur.cutisan.dk` ⭐
		A	2001:470:28:2f7:0:1:0:6^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`arthur.cutisan.dk`
		A	80.198.171.106^{🇩🇰 TDC80.196.0.0/14 Tele Danmark}
			PTR	`operakino.dk`
			PTR	`arthur.cutisan.com`
			PTR	`peter.naur.com`
			PTR	`www.naur.com`
			PTR	`arthur.cutisan.dk`
NS	`bes.cutisan.dk`
		A	2001:470:28:2f7:0:1:0:2^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`bes.cutisan.dk`
		A	80.198.171.102^{🇩🇰 TDC80.196.0.0/14 Tele Danmark}
			PTR	`bes.cutisan.com`
			PTR	`bes.cutisan.dk`
NS	`merlin.cutisan.dk`
		A	2001:470:28:2f7:0:1:0:1^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`merlin.cutisan.dk`
		A	80.198.171.101^{🇩🇰 TDC80.196.0.0/14 Tele Danmark}
			PTR	`merlin.cutisan.dk`
NS	`thoth.cutisan.net`
		A	2001:470:28:404:0:6:0:2^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`thoth.cutisan.net`
		A	90.185.206.63^{🇩🇰 Hiper90.184.0.0/15}
			PTR	`x5ab9ce3f.customers.hiper-net.dk`
		A	217.61.218.196^{🇩🇰 Hiper217.61.216.0/21}
			PTR	`thoth.cutisan.net`
MX	`merlin.cutisan.dk` ⭐
		A	2001:470:28:2f7:0:1:0:1^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`merlin.cutisan.dk`
		A	80.198.171.101^{🇩🇰 TDC80.196.0.0/14 Tele Danmark}
			PTR	`merlin.cutisan.dk`
MX	`thoth.cutisan.net` ⭐
		A	2001:470:28:404:0:6:0:2^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`thoth.cutisan.net`
		A	90.185.206.63^{🇩🇰 Hiper90.184.0.0/15}
			PTR	`x5ab9ce3f.customers.hiper-net.dk`
		A	217.61.218.196^{🇩🇰 Hiper217.61.216.0/21}
			PTR	`thoth.cutisan.net`
TXT	`v=spf1 include:_spf.myemail.dk -all`
SOA	`arthur.cutisan.dk`postmaster@cutisan.dk 2025-07-05 #52

`dk`

	DNSSEC	🔒 Signed (DS record present)
	NS	`b.nic.dk` ⭐
	NS	`c.nic.dk`
	NS	`h.nic.dk`
	NS	`l.nic.dk`
	NS	`s.nic.dk`
	NS	`t.nic.dk`
	TXT	`DK zone updateEpoch 1782538921localtime Sat Jun 27 07:42:01 2026gmtime Sat Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1782538921

Same first word

DNS History

14 records (6 active, 8 former)

●NSarthur.cutisan.dk2015-08-16 → 2026-06-27 · 2 obs

● 2015-08-16 12:16:02
● 2026-06-27 06:24:24

●NSbes.cutisan.dk2015-08-16 → 2026-06-27 · 2 obs

● 2015-08-16 12:16:02
● 2026-06-27 06:24:24

●NSmerlin.cutisan.dk2015-08-16 → 2026-06-27 · 5 obs

● 2015-08-16 12:16:02
● 2016-11-30 05:06:34
○ 2020-01-26 14:06:46
● 2026-04-25 23:01:12
● 2026-06-27 06:24:24

○NSns1.avalonia.com2015-08-16 → 2016-11-30 · 4 obs

● 2015-08-16 12:16:02
● 2016-11-30 05:06:34
○ 2020-01-26 14:06:46
○ 2026-06-27 06:24:24

○NSns1.gratisdns.dk2020-01-26 → 2020-01-26 · 4 obs

○ 2016-11-30 05:06:34
● 2020-01-26 14:06:46
○ 2026-04-25 23:01:12
○ 2026-06-27 06:24:24

○NSns2.gratisdns.dk2020-01-26 → 2020-01-26 · 4 obs

○ 2016-11-30 05:06:34
● 2020-01-26 14:06:46
○ 2026-04-25 23:01:12
○ 2026-06-27 06:24:24

○NSns3.gratisdns.dk2020-01-26 → 2020-01-26 · 4 obs

○ 2016-11-30 05:06:34
● 2020-01-26 14:06:46
○ 2026-04-25 23:01:12
○ 2026-06-27 06:24:24

○NSns4.gratisdns.dk2020-01-26 → 2020-01-26 · 4 obs

○ 2016-11-30 05:06:34
● 2020-01-26 14:06:46
○ 2026-04-25 23:01:12
○ 2026-06-27 06:24:24

○NSns5.gratisdns.dk2020-01-26 → 2020-01-26 · 4 obs

○ 2016-11-30 05:06:34
● 2020-01-26 14:06:46
○ 2026-04-25 23:01:12
○ 2026-06-27 06:24:24

●NSthoth.cutisan.net2026-04-25 → 2026-06-27 · 3 obs

○ 2020-01-26 14:06:46
● 2026-04-25 23:01:12
● 2026-06-27 06:24:24

○MXarthur.cutisan.dk2015-08-16 → 2020-01-26 · 4 obs

● 2015-08-16 12:16:02
● 2020-01-26 14:06:46
○ 2026-04-25 23:01:12
○ 2026-06-27 06:24:24

○MXbes.cutisan.dk2015-08-16 → 2020-01-26 · 4 obs

● 2015-08-16 12:16:02
● 2020-01-26 14:06:46
○ 2026-04-25 23:01:12
○ 2026-06-27 06:24:24

●MXmerlin.cutisan.dk2026-04-25 → 2026-06-27 · 3 obs

○ 2020-01-26 14:06:46
● 2026-04-25 23:01:12
● 2026-06-27 06:24:24

●MXthoth.cutisan.net2026-04-25 → 2026-06-27 · 3 obs

○ 2020-01-26 14:06:46
● 2026-04-25 23:01:12
● 2026-06-27 06:24:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...	12 records
computerscience.dk	bes.cutisan.dk, thoth.cutisan.net, arthur.cutisan.dk, merlin.cutisan.dk	5 records

✅ Authoritative Response

Server:80.198.171.106

NS records: bes.cutisan.dk, thoth.cutisan.net, arthur.cutisan.dk, merlin.cutisan.dk

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1041ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`bes.cutisan.dk, merlin.cutisan.dk...`
MX	2	`merlin.cutisan.dk (pri: 10), thoth.cutisan.net (pri: 10)`
TXT	1	`v=spf1 include:_spf.myemail.dk -all`
SOA	1	`arthur.cutisan.dk postmaster.cutisan.dk`

📌 Glue Records Collected

Total: 17

In-bailiwick: 12 (b.nic.dk, b.nic.dk, c.nic.dk...)

Out-of-bailiwick: 5 (bes.cutisan.dk, bes.cutisan.dk, arthur.cutisan.dk...)

Analysis

Name Servers

The NS records for computerscience.dk point to four name servers: arthur.cutisan.dk, bes.cutisan.dk, merlin.cutisan.dk and thoth.cutisan.net.

computerscience.dk shares at least some of its name servers with other domains, including froekjaer.com, mailtools.dk, dodoz.com and two others.

These name servers are frequently seen alongside ns1.gratisdns.dk, ns2.gratisdns.dk, ns3.gratisdns.dk and 3 other name servers.

Hostnames that map to three IP numbers:

thoth.cutisan.net resolves to three addresses: 90.185.206.63, 217.61.218.196 and 2001:470:28:404:0:6:0:2.

Host names that have two IP addresses:

arthur.cutisan.dk maps to two IP addresses — 80.198.171.106 and 2001:470:28:2f7:0:1:0:6.

bes.cutisan.dk maps to two IP addresses — 80.198.171.102 and 2001:470:28:2f7:0:1:0:2.

merlin.cutisan.dk maps to two IP addresses — 80.198.171.101 and 2001:470:28:2f7:0:1:0:1.

Mail Servers

computerscience.dk is served by two mail servers, merlin.cutisan.dk and thoth.cutisan.net.

Among the domains sharing a mail server setup with computerscience.dk are cutisan.com, nordrup.dk, operakino.dk and two others.

There is at least a partial MX overlap between computerscience.dk and other domains, including kosmetiksalg.dk, thoth.cutisan.net, merlin.cutisan.dk and two others.