checkbit.dk - dns.ninja

`checkbit.dk`

DNSSEC	🔒 Signed (DS record present)
A	91.100.105.5^{🇩🇰 DK-DANSKKABELTV91.100.0.0/15 Arrowhead DK Local Internet Registry (Provider) allocation}
		PTR	`91.100.105.5.generic-hostname.arrownet.dk`
NS	`ns01.one.com` ⭐
		A	2001:67c:28cc::10^{ONECOM-INFRA2001:67c:28cc::/48}
			PTR	`ns01.one.com`
		A	195.206.121.10^{ONECOM-INFRA195.206.121.0/24}
			PTR	`ns01.one.com`
NS	`ns02.one.com`
		A	2001:67c:3c0::10^{🇩🇰 ONECOM2001:67c:3c0::/48}
			PTR	`ns02.one.com`
		A	185.10.11.10^{ONECOM185.10.11.0/24}
			PTR	`ns02.one.com`
MX	`checkbit-dk.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::a^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-du0pr03cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::20^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00400.inbound.protection.outlook.com`
		A	52.101.68.8^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du0pr03cu00100.inbound.protection.outlook.com`
		A	52.101.68.10^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbbpr03cu00102.inbound.protection.outlook.com`
		A	52.101.73.1^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am3pr04cu00501.inbound.protection.outlook.com`
		A	52.101.73.19^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr04cu00803.inbound.protection.outlook.com`
TXT	`v=spf1 ip4:91.100.105.5 include:spf.protection.outlook.com -all`
TXT	`MS=ms28167286`
SOA	`ns01.one.com`hostmaster@one.com 2026-07-18 #1

`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 1786086900localtime Fri Aug 7 09:15:00 2026gmtime Fri Au...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1786086900

Previously MX for

checkbit.dk

Same first word

checkbit.de

checkbit.com

checkbit.net

checkbit.ch

checkbit.dk

Similar names

tbicheck.com

(0x6269746368)eck.com

(0x6269746368)eck.org

(0x6269746368)eck.jp

chickbet.com

DNS History

11 records (4 active, 7 former)

●NSns01.one.com2026-03-17 → 2026-08-07 · 3 obs

○ 2017-06-23 13:15:06
● 2026-03-17 15:29:48
● 2026-08-07 07:48:32

●NSns02.one.com2026-03-17 → 2026-08-07 · 3 obs

○ 2017-06-23 13:15:06
● 2026-03-17 15:29:48
● 2026-08-07 07:48:32

○NSns1.gratisdns.dk2008-11-22 → 2017-06-23 · 4 obs

● 2008-11-22 23:20:06
● 2017-06-23 13:15:06
○ 2026-03-17 15:29:48
○ 2026-08-07 07:48:32

○NSns2.gratisdns.dk2008-11-22 → 2017-06-23 · 4 obs

● 2008-11-22 23:20:06
● 2017-06-23 13:15:06
○ 2026-03-17 15:29:48
○ 2026-08-07 07:48:32

○NSns3.gratisdns.dk2008-11-22 → 2017-06-23 · 4 obs

● 2008-11-22 23:20:06
● 2017-06-23 13:15:06
○ 2026-03-17 15:29:48
○ 2026-08-07 07:48:32

○NSns4.gratisdns.dk2008-11-22 → 2017-06-23 · 4 obs

● 2008-11-22 23:20:06
● 2017-06-23 13:15:06
○ 2026-03-17 15:29:48
○ 2026-08-07 07:48:32

●MXcheckbit-dk.mail.protection.outlook.com2015-07-09 → 2026-08-07 · 3 obs

○ 2008-11-22 23:20:06
● 2015-07-09 03:37:20
● 2026-08-07 07:48:32

○MXcheckbit.dk2008-11-22 → 2008-11-22 · 3 obs

● 2008-11-22 23:20:06
○ 2015-07-09 03:37:20
○ 2026-08-07 07:48:32

○MXjrnet.dk2008-11-22 → 2008-11-22 · 3 obs

● 2008-11-22 23:20:06
○ 2015-07-09 03:37:20
○ 2026-08-07 07:48:32

○A80.198.226.102008-11-22 → 2008-11-22 · 3 obs

● 2008-11-22 23:20:06
○ 2015-07-09 03:37:20
○ 2026-08-07 07:48:32

●A91.100.105.52015-07-09 → 2026-08-07 · 3 obs

○ 2008-11-22 23:20:06
● 2015-07-09 03:37:20
● 2026-08-07 07:48:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk...	-
checkbit.dk	ns01.one.com, ns02.one.com	-

✅ Authoritative Response

Server:185.10.11.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 966ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.100.105.5`
NS	2	`ns02.one.com, ns01.one.com`
MX	1	`checkbit-dk.mail.protection.outlook.com`
TXT	2	`v=spf1 ip4:91.100.105.5 include:spf.prot, MS=ms28167286`
SOA	1	`ns01.one.com hostmaster.one.com`

Analysis

IP Addresses

checkbit.dk points to a single IP number: 91.100.105.5.

91.100.105.5.generic-hostname.arrownet.dk and bionic(0x6269746368).dk, along with other host names, share IP addresses with checkbit.dk.

Name Servers

Two name servers handle the delegation for checkbit.dk: ns01.one.com and ns02.one.com.

checkbit.dk shares its name server setup with other domains, including pro-motors.se, bookursite.com, karilanden.com and two others.

ns01.one.com and ns02.one.com both carry two IP addresses. The A records for ns01.one.com are 195.206.121.10 and 2001:67c:28cc::10; the A records for ns02.one.com are 185.10.11.10 and 2001:67c:3c0::10.

Mail Servers

checkbit.dk has one mail server: checkbit-dk.mail.protection.outlook.com.

checkbit-dk.mail.protection.outlook.com points to 8 IP numbers: 52.101.68.8, 52.101.68.10, 52.101.73.1 and 5 other.