fourcom.dk - dns.ninja

`fourcom.dk`

DNSSEC	⚠️ Not signed
A	185.149.228.6^{🇩🇰 team-blue-denmark185.149.228.0/24}
		PTR	`webcluster04.tigermedia.eu`
NS	`hydrogen.ns.hetzner.com` ⭐
		A	2a01:4f8:0:1::add:1098^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`hydrogen.ns.hetzner.com`
		A	213.133.100.98^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`hydrogen.ns.hetzner.com`
NS	`helium.ns.hetzner.de`
		A	2001:67c:192c::add:5^{🇩🇪 NORIS-NETWORK2001:67c:192c::/48}
			PTR	`helium.ns.hetzner.de`
		A	193.47.99.5^{🇩🇪 NORIS-NETWORK193.47.99.0/24}
NS	`oxygen.ns.hetzner.com`
		A	2a01:4f8:0:1::add:2992^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`oxygen.ns.hetzner.com`
		A	88.198.229.192^{🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4}
MX	`fourcom-dk.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::9^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00601.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::b^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbbpr03cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::9^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr04cu00801.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::c^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00304.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.68.15^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.73.16^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
MX	`barracuda2.mariendal.dk`⁽¹⁰⁾
		A	193.242.107.19^{🇩🇰 GlobalConnect-AS31027193.242.107.0/24 Mariendal-Elteknik}
			PTR	`barracuda.mariendal.dk`
MX	`barracuda.mariendal.dk`⁽²⁰⁾
		A	193.242.107.19^{🇩🇰 GlobalConnect-AS31027193.242.107.0/24 Mariendal-Elteknik}
			PTR	`barracuda.mariendal.dk`
TXT	`MS=ms95723227`
TXT	`v=spf1 ip4:77.68.194.8 include:spf.protection.outlook.com include:spf.tigerme...`
SOA	`hydrogen.ns.hetzner.com`dns@hetzner.com 2026-06-14 #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 1782727921localtime Mon Jun 29 12:12:01 2026gmtime Mon Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1782727921

Subdomains

mail.fourcom.dk

Same first word

fourcom.com

fourcom.de

fourcom.it

fourcom.dk

Similar names

coforum.com

foroucm.com

comfour.nl

fourmco.com

mucofor.ch

coforum.ru

forumoc.com

coforum.es

ocforum.org

ocforum.com

comfour.com

comfour.com.br

coforum.org

forumco.com

coforum.de

ucomfor.com

comfour.de

DNS History

15 records (7 active, 8 former)

●NShelium.ns.hetzner.de2026-02-18 → 2026-06-29 · 3 obs

○ 2017-02-14 21:42:42
● 2026-02-18 21:53:44
● 2026-06-29 10:13:42

●NShydrogen.ns.hetzner.com2026-02-18 → 2026-06-29 · 3 obs

○ 2017-02-14 21:42:42
● 2026-02-18 21:53:44
● 2026-06-29 10:13:42

○NSns1.ascio.net2015-07-23 → 2017-02-14 · 4 obs

● 2015-07-23 23:07:22
● 2017-02-14 21:42:42
○ 2026-02-18 21:53:44
○ 2026-06-29 10:13:42

○NSns2.ascio.net2015-07-23 → 2017-02-14 · 4 obs

● 2015-07-23 23:07:22
● 2017-02-14 21:42:42
○ 2026-02-18 21:53:44
○ 2026-06-29 10:13:42

○NSns3.ascio.net2015-07-23 → 2017-02-14 · 4 obs

● 2015-07-23 23:07:22
● 2017-02-14 21:42:42
○ 2026-02-18 21:53:44
○ 2026-06-29 10:13:42

●NSoxygen.ns.hetzner.com2026-02-18 → 2026-06-29 · 3 obs

○ 2017-02-14 21:42:42
● 2026-02-18 21:53:44
● 2026-06-29 10:13:42

○MX77.68.139.652015-11-24 → 2017-02-14 · 5 obs

○ 2015-07-23 23:07:22
● 2015-11-24 22:15:56
● 2017-02-14 21:42:42
○ 2026-02-18 21:53:44
○ 2026-06-29 10:13:42

○MX77.68.139.652015-07-23 → 2015-07-23 · 3 obs

● 2015-07-23 23:07:22
○ 2015-11-24 22:15:56
○ 2026-06-29 10:13:42

●MXbarracuda.mariendal.dk2026-02-18 → 2026-06-29 · 3 obs

○ 2017-02-14 21:42:42
● 2026-02-18 21:53:44
● 2026-06-29 10:13:42

●MXbarracuda2.mariendal.dk2026-02-18 → 2026-06-29 · 3 obs

○ 2017-02-14 21:42:42
● 2026-02-18 21:53:44
● 2026-06-29 10:13:42

●MXfourcom-dk.mail.protection.outlook.com2026-02-18 → 2026-06-29 · 3 obs

○ 2017-02-14 21:42:42
● 2026-02-18 21:53:44
● 2026-06-29 10:13:42

○MXmail.fourcom.dk2015-07-23 → 2017-02-14 · 4 obs

● 2015-07-23 23:07:22
● 2017-02-14 21:42:42
○ 2026-02-18 21:53:44
○ 2026-06-29 10:13:42

●A185.149.228.62026-02-18 → 2026-06-29 · 3 obs

○ 2017-02-14 21:42:42
● 2026-02-18 21:53:44
● 2026-06-29 10:13:42

○A80.196.242.1392015-07-23 → 2015-11-24 · 4 obs

● 2015-07-23 23:07:22
● 2015-11-24 22:15:56
○ 2016-03-09 09:31:24
○ 2026-06-29 10:13:42

○A80.196.242.1492016-03-09 → 2017-02-14 · 5 obs

○ 2015-11-24 22:15:56
● 2016-03-09 09:31:24
● 2017-02-14 21:42:42
○ 2026-02-18 21:53:44
○ 2026-06-29 10:13:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	l.nic.dk, t.nic.dk, c.nic.dk, b.nic.dk...	-
fourcom.dk	helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com	-

✅ Authoritative Response

Server:213.133.100.98

NS records: helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fourcom.dk (unsigned zone)

⏱️ Timing

Total: 1291ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.149.228.6`
NS	3	`hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com...`
MX	3	`barracuda.mariendal.dk (pri: 10), barracuda2.mariendal.dk (pri: 20)...`
TXT	2	`MS=ms95723227, v=spf1 ip4:77.68.194.8 include:spf.prote`
SOA	1	`hydrogen.ns.hetzner.com dns.hetzner.com`

Analysis

Hierarchy

fourcom.dk is a parent domain of mail.fourcom.dk.

IP Addresses

fourcom.dk resolves to one IP address: 185.149.228.6.

fiberman.eu, blokhus.dk, prodomus.dk and two other host names share IP numbers with fourcom.dk.

Name Servers

fourcom.dk carries NS records delegating to hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.

fourcom.dk shares at least some of its name servers with other domains, including realauktionen.de, sevenofi.com, thwien.de and two others.

These name servers are frequently seen alongside the name servers ns1.first-ns.de.

hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de are three hostnames that each resolve to a pair of IP addresses: hydrogen.ns.hetzner.com to 213.133.100.98 and 2a01:4f8:0:1::add:1098, oxygen.ns.hetzner.com to 88.198.229.192 and 2a01:4f8:0:1::add:2992, and helium.ns.hetzner.de to 193.47.99.5 and 2001:67c:192c::add:5.

Mail Servers

fourcom.dk is handled by three mail servers: barracuda2.mariendal.dk, barracuda.mariendal.dk and fourcom-dk.mail.protection.outlook.com.

fourcom.dk has at least partial mail server overlap with other domains such as blaakildewater.dk, mariendal-it.dk, coocoodesign.com and two more.

This set of mail servers commonly appears together with the mail servers wiegaarden.in.tmes.trendmicro.eu.

Hostnames that resolve to 8 IP addresses:

fourcom-dk.mail.protection.outlook.com resolves to 52.101.68.3, 52.101.68.15 and 52.101.73.16 among others, with 5 other IP addresses in total.

Hosts with just one IP address:

The hostname barracuda2.mariendal.dk resolves to 193.242.107.19.

The hostname barracuda.mariendal.dk resolves to 193.242.107.19.

barracuda2.mariendal.dk along with barracuda.mariendal.dk each resolve to 193.242.107.19 IP addresses.