checkmark.dk - dns.ninja

`checkmark.dk`

DNSSEC	🔒 Signed (DS record present)
A	94.231.109.205^{🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S}
		PTR	`linux8.unoeuro.com`
NS	`ns1.simply.com` ⭐
		A	2a02:2339:1:15c::4562:4562^{🇩🇰 team-blue-denmark2a02:2339::/36}
			PTR	`ns1.simply.com`
		A	91.197.248.78^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns1.simply.com`
NS	`ns2.simply.com`
		A	2a02:2339:4006:101::4562:4562^{🇩🇰 team-blue-denmark2a02:2339:4000::/34}
			PTR	`ns2.simply.com`
		A	185.25.141.15^{🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S}
			PTR	`ns2.simply.com`
NS	`ns3.simply.com`
		A	91.197.248.79^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns3.simply.com`
NS	`ns4.simply.com`
		A	91.197.248.80^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns4.simply.com`
MX	`mx.simply.com` ⭐
		A	94.231.106.20^{🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S}
			PTR	`mx.simply.com`
TXT	`v=spf1 include:spf.simply.com -all`
SOA	`ns1.simply.com`hostmaster@simply.com 2025-04-23 #0

`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 1782897481localtime Wed Jul 1 11:18:01 2026gmtime Wed Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1782897482

Subdomains

www.checkmark.dk

Same first word

checkmark.org

checkmark.se

checkmark.mx

checkmark.com

checkmark.co.uk

checkmark.in

checkmark.co

checkmark.no

checkmark.me

checkmark.co.il

checkmark.info

checkmark.dk

checkmark.it

checkmark.be

checkmark.fi

checkmark.nl

checkmark.net

checkmark.eu

checkmark.ru

checkmark.de

checkmark.ca

checkmark.blue

checkmark.ir

Similar names

markcheck.com

kcchermak.com

markcheck.net

DNS History

12 records (6 active, 6 former)

●NSns1.simply.com2026-02-23 → 2026-07-01 · 3 obs

○ 2017-11-16 17:56:02
● 2026-02-23 03:12:18
● 2026-07-01 09:24:44

○NSns1.unoeuro.com2015-08-31 → 2017-11-16 · 4 obs

● 2015-08-31 01:58:02
● 2017-11-16 17:56:02
○ 2026-02-23 03:12:18
○ 2026-07-01 09:24:44

●NSns2.simply.com2026-02-23 → 2026-07-01 · 3 obs

○ 2017-11-16 17:56:02
● 2026-02-23 03:12:18
● 2026-07-01 09:24:44

○NSns2.unoeuro.com2015-08-31 → 2017-11-16 · 4 obs

● 2015-08-31 01:58:02
● 2017-11-16 17:56:02
○ 2026-02-23 03:12:18
○ 2026-07-01 09:24:44

●NSns3.simply.com2026-02-23 → 2026-07-01 · 3 obs

○ 2017-11-16 17:56:02
● 2026-02-23 03:12:18
● 2026-07-01 09:24:44

○NSns3.unoeuro.com2015-08-31 → 2017-11-16 · 4 obs

● 2015-08-31 01:58:02
● 2017-11-16 17:56:02
○ 2026-02-23 03:12:18
○ 2026-07-01 09:24:44

●NSns4.simply.com2026-02-23 → 2026-07-01 · 3 obs

○ 2017-11-16 17:56:02
● 2026-02-23 03:12:18
● 2026-07-01 09:24:44

○NSns4.unoeuro.com2015-08-31 → 2017-11-16 · 4 obs

● 2015-08-31 01:58:02
● 2017-11-16 17:56:02
○ 2026-02-23 03:12:18
○ 2026-07-01 09:24:44

○MXmail4.unoeuro.com2015-08-31 → 2015-11-11 · 4 obs

● 2015-08-31 01:58:02
● 2015-11-11 02:40:48
○ 2015-11-28 04:20:10
○ 2026-07-01 09:24:44

●MXmx.simply.com2026-02-23 → 2026-07-01 · 3 obs

○ 2017-11-16 17:56:02
● 2026-02-23 03:12:18
● 2026-07-01 09:24:44

○MXmx.unoeuro.com2015-11-28 → 2017-11-16 · 5 obs

○ 2015-11-11 02:40:48
● 2015-11-28 04:20:10
● 2017-11-16 17:56:02
○ 2026-02-23 03:12:18
○ 2026-07-01 09:24:44

●A94.231.109.2052015-08-31 → 2026-07-01 · 2 obs

● 2015-08-31 01:58:02
● 2026-07-01 09:24:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	s.nic.dk, c.nic.dk, h.nic.dk, b.nic.dk...	-
checkmark.dk	ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com	-

✅ Authoritative Response

Server:91.197.248.78

NS records: ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 722ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`94.231.109.205`
NS	4	`ns1.simply.com, ns4.simply.com...`
MX	1	`mx.simply.com (pri: 10)`
TXT	1	`v=spf1 include:spf.simply.com -all`
SOA	1	`ns1.simply.com hostmaster.simply.com`

Analysis

Hierarchy

The domain www.checkmark.dk falls under the parent checkmark.dk.

IP Addresses

checkmark.dk resolves to one IP address: 94.231.109.205.

stineholt.dk, 6920.dk, bcrevision.dk and two other host names share IP numbers with checkmark.dk.

Name Servers

The authoritative name servers for checkmark.dk are ns1.simply.com, ns2.simply.com, ns3.simply.com and ns4.simply.com.

At least some of checkmark.dk's name servers are shared with other domains, for example speakup.nu, viborg-el.dk, operaensvenner.dk and two more.

These name servers are often deployed together with the name servers ns1.unoeuro.com, ns2.unoeuro.com, ns3.unoeuro.com and ns4.unoeuro.com.

Hostnames that resolve to two IP addresses:

ns1.simply.com resolves to 91.197.248.78 and 2a02:2339:1:15c::4562:4562.

ns2.simply.com resolves to 185.25.141.15 and 2a02:2339:4006:101::4562:4562.

Hosts with just one IP address:

ns3.simply.com resolves to 91.197.248.79.

ns4.simply.com resolves to 91.197.248.80.

Mail Servers

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

checkmark.dk uses an identical mail server configuration to several other domains — among them techspot.dk, acatinthekitchen.com, vibefm.dk and two more.

checkmark.dk overlaps on mail servers with certain other domains, schackpetersen.com among them.

mx.simply.com points to one IP number — 94.231.106.20.