`jb-technologies.dk`

DNSSEC	🔒 Signed (DS record present)
A	193.200.90.178^{🇩🇰 obox-networks193.200.90.0/23 Eushells.com +-------------------------------+ For abuse and security issues please contact abuse@bitguardians.com +-------------------------------+}
		PTR	`web6.e-studio.dk`
NS	`ns1.e-studio.dk` ⭐
		A	2001:67c:564:fffc::11^{🇩🇰 obox-networks2001:67c:564::/48 Sjacob Holding ApS}
			PTR	`ns1.e-studio.dk`
		A	195.242.131.5^{🇩🇰 obox-networks195.242.130.0/23 e-studio.dk +-------------------------------+ For abuse and security issues please contact abuse@bitguardians.com +-------------------------------+}
			PTR	`ns1.e-studio.dk`
NS	`ns2.e-studio.dk`
		A	2a00:1b18:2:3::2^{🇩🇰 DLX-AS2a00:1b18::/29}
			PTR	`ns2.e-studio.dk`
		A	62.69.152.34^{🇩🇰 DLX-AS62.69.152.0/21 DLX}
NS	`ns3.e-studio.dk`
		A	2001:67c:564:fffc::13^{🇩🇰 obox-networks2001:67c:564::/48 Sjacob Holding ApS}
			PTR	`ns3.e-studio.dk`
		A	193.200.90.183^{🇩🇰 obox-networks193.200.90.0/23 Eushells.com +-------------------------------+ For abuse and security issues please contact abuse@bitguardians.com +-------------------------------+}
			PTR	`ns3.e-studio.dk`
MX	`mx1.spamfri.dk` ⭐
		A	2001:67c:564:fffd::1001^{🇩🇰 obox-networks2001:67c:564::/48 Sjacob Holding ApS}
			PTR	`mx1.spamfri.dk`
		A	195.242.131.16^{🇩🇰 obox-networks195.242.130.0/23 e-studio.dk +-------------------------------+ For abuse and security issues please contact abuse@bitguardians.com +-------------------------------+}
			PTR	`mx1.spamfri.dk`
MX	`mx2.spamfri.dk`⁽²⁰⁾
		A	2001:67c:564:fffd::2001^{🇩🇰 obox-networks2001:67c:564::/48 Sjacob Holding ApS}
			PTR	`mx2.spamfri.dk`
		A	193.200.91.109^{🇩🇰 obox-networks193.200.90.0/23 Eushells.com +-------------------------------+ For abuse and security issues please contact abuse@bitguardians.com +-------------------------------+}
			PTR	`mx2.spamfri.dk`
MX	`mx3.spamfri.dk`⁽³⁰⁾
		A	2a00:1b18:2:3:fe::2^{🇩🇰 DLX-AS2a00:1b18::/29}
			PTR	`mx3.spamfri.dk`
		A	62.69.152.43^{🇩🇰 DLX-AS62.69.152.0/21 DLX}
TXT	`v=spf1 ip4:193.200.90.178 include:_spf.e-studio.dk -all`
SOA	`ns1.e-studio.dk`hostmaster@mailrelay.e-studio.dk 2026-03-07 #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 1775031841localtime Wed Apr 1 10:24:01 2026gmtime Wed Ap...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1775031842

Subdomains

mail.jb-technologies.dk

Same first word

jb-technologies.com

jb-technologies.dk

DNS History

12 records (7 active, 5 former)

○NSns1.dns-123.net2015-06-30 → 2015-06-30 · 3 obs

● 2015-06-30 02:50:16
○ 2026-03-26 12:02:08
○ 2026-04-01 08:51:46

●NSns1.e-studio.dk2026-03-26 → 2026-04-01 · 3 obs

○ 2015-06-30 02:50:16
● 2026-03-26 12:02:08
● 2026-04-01 08:51:46

○NSns2.dns-123.net2015-06-30 → 2015-06-30 · 3 obs

● 2015-06-30 02:50:16
○ 2026-03-26 12:02:08
○ 2026-04-01 08:51:46

●NSns2.e-studio.dk2026-03-26 → 2026-04-01 · 3 obs

○ 2015-06-30 02:50:16
● 2026-03-26 12:02:08
● 2026-04-01 08:51:46

○NSns3.dns-123.net2015-06-30 → 2015-06-30 · 3 obs

● 2015-06-30 02:50:16
○ 2026-03-26 12:02:08
○ 2026-04-01 08:51:46

●NSns3.e-studio.dk2026-03-26 → 2026-04-01 · 3 obs

○ 2015-06-30 02:50:16
● 2026-03-26 12:02:08
● 2026-04-01 08:51:46

○MXmail.jb-technologies.dk2015-06-30 → 2015-06-30 · 3 obs

● 2015-06-30 02:50:16
○ 2026-03-26 12:02:08
○ 2026-04-01 08:51:46

●MXmx1.spamfri.dk2026-03-26 → 2026-04-01 · 3 obs

○ 2015-06-30 02:50:16
● 2026-03-26 12:02:08
● 2026-04-01 08:51:46

●MXmx2.spamfri.dk2026-03-26 → 2026-04-01 · 3 obs

○ 2015-06-30 02:50:16
● 2026-03-26 12:02:08
● 2026-04-01 08:51:46

●MXmx3.spamfri.dk2026-03-26 → 2026-04-01 · 3 obs

○ 2015-06-30 02:50:16
● 2026-03-26 12:02:08
● 2026-04-01 08:51:46

●A193.200.90.1782026-03-26 → 2026-04-01 · 3 obs

○ 2015-06-30 02:50:16
● 2026-03-26 12:02:08
● 2026-04-01 08:51:46

○A86.48.37.482015-06-30 → 2015-06-30 · 3 obs

● 2015-06-30 02:50:16
○ 2026-03-26 12:02:08
○ 2026-04-01 08:51:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...	-
jb-technologies.dk	ns3.e-studio.dk, ns1.e-studio.dk, ns2.e-studio.dk	-

✅ Authoritative Response

Server:195.242.131.5

NS records: ns3.e-studio.dk, ns1.e-studio.dk, ns2.e-studio.dk

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1135ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`193.200.90.178`
NS	3	`ns3.e-studio.dk, ns2.e-studio.dk...`
MX	3	`mx1.spamfri.dk (pri: 10), mx3.spamfri.dk (pri: 30)...`
TXT	1	`v=spf1 ip4:193.200.90.178 include:_spf.e`
SOA	1	`ns1.e-studio.dk hostmaster.mailrelay.e-s`

Analysis

Hierarchy

mail.jb-technologies.dk has jb-technologies.dk as its parent.

IP Addresses

jb-technologies.dk maps to IP address 193.200.90.178.

Other host names, for instance danu.dk, karmark.com, mail.weiz.dk, mr-andersen.dk and hocd.dk share IP numbers with jb-technologies.dk.

Name Servers

jb-technologies.dk is delegated to name servers ns1.e-studio.dk, ns2.e-studio.dk and ns3.e-studio.dk.

jb-technologies.dk at least partially shares name servers with other domains such as aalbaek.dk, sdbs.dk, siliam.dk, mail.gybel.dk and dequete.dk.

Host names with two IP numbers:

ns1.e-studio.dk points to 2001:67c:564:fffc::11 and 195.242.131.5.

ns2.e-studio.dk points to 2a00:1b18:2:3::2 and 62.69.152.34.

ns3.e-studio.dk points to 2001:67c:564:fffc::13 and 193.200.90.183.

Mail Servers

jb-technologies.dk is handled by three mail servers: mx1.spamfri.dk, mx2.spamfri.dk and mx3.spamfri.dk.

jb-technologies.dk shares mail servers with other domains at least in part, for instance skovledet.info, tsmail.dk, bitguardians.com, virtual-teams.dk and gade-mail.dk.

these mail servers are commonly used alongside the mail servers mx4.spamfri.dk.

Host names with two IP numbers:

mx1.spamfri.dk points to 2001:67c:564:fffd::1001 and 195.242.131.16.

mx2.spamfri.dk points to 2001:67c:564:fffd::2001 and 193.200.91.109.

mx3.spamfri.dk points to 2a00:1b18:2:3:fe::2 and 62.69.152.43.

jb-technologies.dk - robtex.com