fcsystem.dk - dns.ninja

`fcsystem.dk`

DNSSEC	🔒 Signed (DS record present)
A	185.21.41.237^{🇩🇰 team-blue-denmark185.21.40.0/22 ZITCOM A/S}
		PTR	`linux31.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	`fcsystem-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::c^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::d^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr05cu01305.inbound.protection.outlook.com`
		A	52.101.68.0^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	52.101.68.39^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00607.inbound.protection.outlook.com`
		A	52.101.73.24^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00300.inbound.protection.outlook.com`
		A	52.101.73.28^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00204.inbound.protection.outlook.com`
TXT	`MS=ms98536390`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.onlinemail.io -all`
SOA	`ns1.curanet.dk`hostmaster@curanet.dk 2026-06-09 #3

`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 1783260001localtime Sun Jul 5 16:00:01 2026gmtime Sun Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1783260001

Same first word

fcsystem.dk

fcsystem.it

Similar names

cfsystem.it

systemfc.com

cfsystem.com

cfsystem.pl

cfsystem.com.my

cfsystem.ch

cfsystem.de

DNS History

15 records (4 active, 11 former)

○NSgalilea.ns.cloudflare.com2026-02-19 → 2026-06-03 · 5 obs

○ 2019-12-29 11:41:34
● 2026-02-19 21:12:30
● 2026-06-03 05:48:32
○ 2026-06-21 08:21:28
○ 2026-07-05 14:01:40

○NSns1.123hotel.dk2015-05-29 → 2017-01-27 · 4 obs

● 2015-05-29 03:28:50
● 2017-01-27 19:32:40
○ 2019-12-29 11:41:34
○ 2026-07-05 14:01:40

●NSns1.curanet.dk2026-06-21 → 2026-07-05 · 3 obs

○ 2026-06-03 05:48:32
● 2026-06-21 08:21:28
● 2026-07-05 14:01:40

○NSns1.soegemedier.dk2019-12-29 → 2019-12-29 · 4 obs

○ 2017-01-27 19:32:40
● 2019-12-29 11:41:34
○ 2026-02-19 21:12:30
○ 2026-07-05 14:01:40

○NSns2.123hotel.dk2015-05-29 → 2017-01-27 · 4 obs

● 2015-05-29 03:28:50
● 2017-01-27 19:32:40
○ 2019-12-29 11:41:34
○ 2026-07-05 14:01:40

●NSns2.curanet.dk2026-06-21 → 2026-07-05 · 3 obs

○ 2026-06-03 05:48:32
● 2026-06-21 08:21:28
● 2026-07-05 14:01:40

○NSns2.soegemedier.dk2019-12-29 → 2019-12-29 · 4 obs

○ 2017-01-27 19:32:40
● 2019-12-29 11:41:34
○ 2026-02-19 21:12:30
○ 2026-07-05 14:01:40

○NSsri.ns.cloudflare.com2026-02-19 → 2026-06-03 · 5 obs

○ 2019-12-29 11:41:34
● 2026-02-19 21:12:30
● 2026-06-03 05:48:32
○ 2026-06-21 08:21:28
○ 2026-07-05 14:01:40

○MXbackup-mx.zitcom.dk2015-05-29 → 2017-01-27 · 4 obs

● 2015-05-29 03:28:50
● 2017-01-27 19:32:40
○ 2019-12-29 11:41:34
○ 2026-07-05 14:01:40

●MXfcsystem-dk.mail.protection.outlook.com2019-12-29 → 2026-07-05 · 3 obs

○ 2017-01-27 19:32:40
● 2019-12-29 11:41:34
● 2026-07-05 14:01:40

○MXfsmsg0265.sp.f-secure.com2015-12-16 → 2017-01-27 · 5 obs

○ 2015-05-29 03:28:50
● 2015-12-16 16:22:02
● 2017-01-27 19:32:40
○ 2019-12-29 11:41:34
○ 2026-07-05 14:01:40

○MXmail.fcsystem.dk2015-05-29 → 2017-01-27 · 4 obs

● 2015-05-29 03:28:50
● 2017-01-27 19:32:40
○ 2019-12-29 11:41:34
○ 2026-07-05 14:01:40

○A185.21.40.1992015-05-29 → 2017-01-27 · 4 obs

● 2015-05-29 03:28:50
● 2017-01-27 19:32:40
○ 2019-12-29 11:41:34
○ 2026-07-05 14:01:40

●A185.21.41.2372026-02-19 → 2026-07-05 · 3 obs

○ 2019-12-29 11:41:34
● 2026-02-19 21:12:30
● 2026-07-05 14:01:40

○A77.235.58.952019-12-29 → 2019-12-29 · 4 obs

○ 2017-01-27 19:32:40
● 2019-12-29 11:41:34
○ 2026-02-19 21:12:30
○ 2026-07-05 14:01:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...	12 records
fcsystem.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: 1010ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.21.41.237`
NS	2	`ns2.curanet.dk, ns1.curanet.dk`
MX	1	`fcsystem-dk.mail.protection.outlook.com`
TXT	2	`MS=ms98536390, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.curanet.dk hostmaster.curanet.dk`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

fcsystem.dk directs to one IP number, which is 185.21.41.237.

Among the host names that share IP numbers with fcsystem.dk are guldsmedbruno.dk, erodark.cz, dan-floor.com and two others.

Name Servers

fcsystem.dk uses two name servers for its delegation: ns1.curanet.dk and ns2.curanet.dk.

fcsystem.dk has the same name server delegation as a number of other domains, such as livskompetence.dk, nordlys-trading.com, tholstrup-food.dk and two more.

At least some of fcsystem.dk's name servers are shared with other domains, for example gbgj.dk, 3x.dk, arkidesign.dk and two more.

These name servers tend to be used in conjunction with the name servers ns1.123hotel.dk.

The two host names ns1.curanet.dk and ns2.curanet.dk each have a pair of IP addresses: ns1.curanet.dk has 185.25.141.12 and 2a02:2339:4006:108::123, and ns2.curanet.dk has 91.197.248.75 and 2a02:2339:1:10f::123:123.

Mail Servers

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

fcsystem-dk.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.68.0, 52.101.68.39 and 52.101.73.24, along with 5 other.