itstack.dk - dns.ninja

`itstack.dk`

DNSSEC	🔒 Signed (DS record present)
A	185.21.41.45^{🇩🇰 team-blue-denmark185.21.40.0/22 ZITCOM A/S}
		PTR	`linux15.curanet.dk`
NS	`ns1.curanet.dk` ⭐
		A	2a02:2339:4006:108::123^{🇩🇰 team-blue-denmark2a02:2339:4000::/34}
			PTR	`ns1.curanet.dk`
		A	185.25.141.12^{🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S}
			PTR	`ns1.curanet.dk`
NS	`ns2.curanet.dk`
		A	2a02:2339:1:10f::123:123^{🇩🇰 team-blue-denmark2a02:2339::/36}
			PTR	`ns2.curanet.dk`
		A	91.197.248.75^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns2.curanet.dk`
MX	`mx1.onlinemail.io` ⭐
		A	185.21.42.12^{🇩🇰 team-blue-denmark185.21.40.0/22 ZITCOM A/S}
			PTR	`mx1.onlinemail.io`
MX	`mx2.onlinemail.io`⁽²⁰⁾
		A	46.36.208.16^{🇩🇰 team-blue-denmark46.36.208.0/21}
			PTR	`mx2.onlinemail.io`
TXT	`v=spf1 include:_spf.google.com include:_spf.mlsend.com include:spf.onlinemail...`
TXT	`mailerlite-domain-verification=d8d3a9def616bdd30fa5eddfcc51f67540e245d9`
TXT	`google-site-verification=UuuRIdVMDtYjV5jSK2XGrxsIjpVQ1e7J_daPStSqXaw`
TXT	`v=spf1 include:spf.zoho.eu include:eu.transmail.net include:spf.zohomail360.e...`
TXT	`openai-domain-verification=dv-1xSkOR6deJoWjrfSeY9UYf5o`
TXT	`stripe-verification=53ce3d94621138db757defa38d80637bc91b63d6b7be32ee078138c05...`
SOA	`ns1.curanet.dk`hostmaster@curanet.dk 2026-03-26 #6

`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 1780559461localtime Thu Jun 4 09:51:01 2026gmtime Thu Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1780559461

Previously MX for

itstack.dk

Subdomains

ns1.itstack.dk

ns2.itstack.dk

Same first word

itstack.eu

itstack.com.tr

itstack.com

itstack.dk

itstack.cn

itstack.io

itstack.de

itstack.net

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stackit.gg

taktics.de

(0x74697473)ack.com

taktics.net

stackit.domains

tickats.de

kitcats.com

stackit.ru

stackit.org

stackit.co.nz

tikcast.com

atticks.com

stackit.nl

tasktic.com

stackit.cloud

tactiks.com

castkit.com

statick.com

stackit.info

stackit.run

stackit.de

kitcast.tv

tackits.com

kstatic.co

stackit.net

stackit.zone

kstatic.de

tictaks.com

stackit.us

stackit.co.uk

stickat.se

stackit.mobi

tistack.com

statick.org

kitcats.net

stickat.com

stackit.biz

stackit.com

stickat.it

statick.co.uk

DNS History

9 records (5 active, 4 former)

○NShost.karlog-it.dk2019-02-28 → 2019-02-28 · 3 obs

● 2019-02-28 05:43:02
○ 2026-02-28 05:12:18
○ 2026-06-04 08:11:04

●NSns1.curanet.dk2026-02-28 → 2026-06-04 · 3 obs

○ 2019-02-28 05:43:02
● 2026-02-28 05:12:18
● 2026-06-04 08:11:04

○NSns1.karlog-it.dk2019-02-28 → 2019-02-28 · 3 obs

● 2019-02-28 05:43:02
○ 2026-02-28 05:12:18
○ 2026-06-04 08:11:04

●NSns2.curanet.dk2026-02-28 → 2026-06-04 · 3 obs

○ 2019-02-28 05:43:02
● 2026-02-28 05:12:18
● 2026-06-04 08:11:04

○MXitstack.dk2019-02-28 → 2019-02-28 · 3 obs

● 2019-02-28 05:43:02
○ 2026-02-28 05:12:18
○ 2026-06-04 08:11:04

●MXmx1.onlinemail.io2026-02-28 → 2026-06-04 · 3 obs

○ 2019-02-28 05:43:02
● 2026-02-28 05:12:18
● 2026-06-04 08:11:04

●MXmx2.onlinemail.io2026-02-28 → 2026-06-04 · 3 obs

○ 2019-02-28 05:43:02
● 2026-02-28 05:12:18
● 2026-06-04 08:11:04

●A185.21.41.452026-02-28 → 2026-06-04 · 3 obs

○ 2019-02-28 05:43:02
● 2026-02-28 05:12:18
● 2026-06-04 08:11:04

○A194.135.81.1362019-02-28 → 2019-02-28 · 3 obs

● 2019-02-28 05:43:02
○ 2026-02-28 05:12:18
○ 2026-06-04 08:11:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	c.nic.dk, t.nic.dk, l.nic.dk, s.nic.dk...	-
itstack.dk	ns1.curanet.dk, ns2.curanet.dk	-

✅ Authoritative Response

Server:185.25.141.12

NS records: ns1.curanet.dk, ns2.curanet.dk

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 799ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.21.41.45`
NS	2	`ns1.curanet.dk, ns2.curanet.dk`
MX	2	`mx2.onlinemail.io (pri: 20), mx1.onlinemail.io (pri: 10)`
TXT	6	`v=spf1 include:_spf.google.com include:_, stripe-verification=53ce3d94621138db757d...`
SOA	1	`ns1.curanet.dk hostmaster.curanet.dk`

Analysis

Hierarchy

itstack.dk is the parent domain of ns1.itstack.dk and ns2.itstack.dk.

IP Addresses

itstack.dk points to a single IP number: 185.21.41.45.

Additional host names — boidavidsen.dk, zantio.dk, lbk.dk and two others — share IP numbers with itstack.dk.

Name Servers

itstack.dk has two authoritative name servers — ns1.curanet.dk and ns2.curanet.dk.

itstack.dk shares its name server setup with other domains, including toloroklub.dk, sejtraek.dk, kaffebar.dk and two others.

itstack.dk partially shares its NS delegation with several other domains, including dspnet.dk, login3000.com, tandlaegernesanktanne.dk and two others.

These name servers often co-occur with the name servers ns1.123hotel.dk.

Both ns1.curanet.dk and ns2.curanet.dk have two IP addresses each. ns1.curanet.dk resolves to 185.25.141.12 and 2a02:2339:4006:108::123; ns2.curanet.dk resolves to 91.197.248.75 and 2a02:2339:1:10f::123:123.

Mail Servers

itstack.dk has two mail servers: mx1.onlinemail.io and mx2.onlinemail.io.

itstack.dk shares the same mail server setup as other domains, including logoon.dk, grusterminalen.dk, soldater.dk and two others.

itstack.dk partially shares its mail servers with other domains, tectum.dk and joench.dk being examples.

mx1.onlinemail.io resolves to 185.21.42.12. mx2.onlinemail.io resolves to 46.36.208.16. Both host names point to a single IP number.