react.dk - dns.ninja

`react.dk`

DNSSEC	🔒 Signed (DS record present)
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	`react-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::a^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-du0pr03cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::d^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db6pr03cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::b^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00103.inbound.protection.outlook.com`
		A	52.101.68.12^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	52.101.73.12^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am4pr0401cu00104.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.73.24^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00300.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all`
TXT	`MS=ms92463047`
SOA	`ns1.simply.com`hostmaster@simply.com 2023-12-28 #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 1784844721localtime Fri Jul 24 00:12:01 2026gmtime Thu Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1784844721

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DNS History

21 records (5 active, 16 former)

○NSns01.one.com2016-06-30 → 2019-12-30 · 5 obs

○ 2015-11-27 16:42:52
● 2016-06-30 12:19:54
● 2019-12-30 16:13:34
○ 2026-03-18 15:46:36
○ 2026-07-23 22:21:42

○NSns02.one.com2016-06-30 → 2019-12-30 · 5 obs

○ 2015-11-27 16:42:52
● 2016-06-30 12:19:54
● 2019-12-30 16:13:34
○ 2026-03-18 15:46:36
○ 2026-07-23 22:21:42

○NSns1.gratisdns.dk2015-06-15 → 2015-06-15 · 3 obs

● 2015-06-15 18:44:36
○ 2015-11-27 16:42:52
○ 2026-07-23 22:21:42

●NSns1.simply.com2026-03-18 → 2026-07-23 · 3 obs

○ 2019-12-30 16:13:34
● 2026-03-18 15:46:36
● 2026-07-23 22:21:42

○NSns2.gratisdns.dk2015-06-15 → 2015-06-15 · 3 obs

● 2015-06-15 18:44:36
○ 2015-11-27 16:42:52
○ 2026-07-23 22:21:42

●NSns2.simply.com2026-03-18 → 2026-07-23 · 3 obs

○ 2019-12-30 16:13:34
● 2026-03-18 15:46:36
● 2026-07-23 22:21:42

○NSns3.gratisdns.dk2015-06-15 → 2015-06-15 · 3 obs

● 2015-06-15 18:44:36
○ 2015-11-27 16:42:52
○ 2026-07-23 22:21:42

●NSns3.simply.com2026-03-18 → 2026-07-23 · 3 obs

○ 2019-12-30 16:13:34
● 2026-03-18 15:46:36
● 2026-07-23 22:21:42

○NSns4.gratisdns.dk2015-06-15 → 2015-06-15 · 3 obs

● 2015-06-15 18:44:36
○ 2015-11-27 16:42:52
○ 2026-07-23 22:21:42

●NSns4.simply.com2026-03-18 → 2026-07-23 · 3 obs

○ 2019-12-30 16:13:34
● 2026-03-18 15:46:36
● 2026-07-23 22:21:42

○NSns5.gratisdns.dk2015-06-15 → 2015-06-15 · 3 obs

● 2015-06-15 18:44:36
○ 2015-11-27 16:42:52
○ 2026-07-23 22:21:42

○NSolga.ns.cloudflare.com2015-11-27 → 2015-11-27 · 4 obs

○ 2015-06-15 18:44:36
● 2015-11-27 16:42:52
○ 2016-06-30 12:19:54
○ 2026-07-23 22:21:42

○NStodd.ns.cloudflare.com2015-11-27 → 2015-11-27 · 4 obs

○ 2015-06-15 18:44:36
● 2015-11-27 16:42:52
○ 2016-06-30 12:19:54
○ 2026-07-23 22:21:42

○MXmail1.inota.dk2015-06-15 → 2015-11-27 · 4 obs

● 2015-06-15 18:44:36
● 2015-11-27 16:42:52
○ 2016-06-30 12:19:54
○ 2026-07-23 22:21:42

●MXreact-dk.mail.protection.outlook.com2016-06-30 → 2026-07-23 · 6 obs

○ 2015-11-27 16:42:52
● 2016-06-30 12:19:54
● 2026-06-08 11:42:14
○ 2026-07-09 23:34:10
● 2026-07-15 19:21:30
● 2026-07-23 22:21:42

○A104.31.78.802015-11-27 → 2015-11-27 · 4 obs

○ 2015-06-15 18:44:36
● 2015-11-27 16:42:52
○ 2016-06-30 12:19:54
○ 2026-07-23 22:21:42

○A104.31.79.802015-11-27 → 2015-11-27 · 4 obs

○ 2015-06-15 18:44:36
● 2015-11-27 16:42:52
○ 2016-06-30 12:19:54
○ 2026-07-23 22:21:42

○A192.71.245.2212015-06-15 → 2015-06-15 · 3 obs

● 2015-06-15 18:44:36
○ 2015-11-27 16:42:52
○ 2026-07-23 22:21:42

○A2a02:2350:5:104:8d40:0:dfc2:a77c2019-12-30 → 2019-12-30 · 4 obs

○ 2016-06-30 12:19:54
● 2019-12-30 16:13:34
○ 2026-03-18 15:46:36
○ 2026-07-23 22:21:42

○A46.30.213.1072016-06-30 → 2016-06-30 · 4 obs

○ 2015-11-27 16:42:52
● 2016-06-30 12:19:54
○ 2019-12-30 16:13:34
○ 2026-07-23 22:21:42

○A46.30.215.532019-12-30 → 2019-12-30 · 4 obs

○ 2016-06-30 12:19:54
● 2019-12-30 16:13:34
○ 2026-03-18 15:46:36
○ 2026-07-23 22:21:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	l.nic.dk, h.nic.dk, t.nic.dk, b.nic.dk...	-
react.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: 2241ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns4.simply.com, ns1.simply.com...`
MX	1	`react-dk.mail.protection.outlook.com (pr`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms92463047`
SOA	1	`ns1.simply.com hostmaster.simply.com`

Analysis

Name Servers

The domain react.dk is delegated to these four name servers: ns1.simply.com, ns2.simply.com, ns3.simply.com and ns4.simply.com.

react.dk partially shares its NS delegation with several other domains, including gasmedstil.dk, exitplan.dk, elbud.dk and two others.

These name servers are regularly seen alongside ns1.unoeuro.com and ns2.unoeuro.com as name servers.

Hosts with two IP numbers each:

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

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

Hosts that resolve to one IP address:

ns3.simply.com directs to 91.197.248.79.

ns4.simply.com directs to 91.197.248.80.

Mail Servers

react.dk routes its mail through a single mail server, react-dk.mail.protection.outlook.com.

react-dk.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.68.12, 52.101.73.12 and 52.101.73.15, along with 5 other.