linux3.dform.dk - dns.ninja

`linux3.dform.dk`

DNSSEC	⚠️ Not signed
A	2a01:4f8:1c1a:22c5::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
A	91.98.139.7^{🇮🇷 Hetzner91.98.0.0/16 HETZNER-DC}
NS	`linux3.dform.dk` ⭐ ⚠️ Not in parent delegation
		A	2a01:4f8:1c1a:22c5::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		A	91.98.139.7^{🇮🇷 Hetzner91.98.0.0/16 HETZNER-DC}
			PTR	`linux3.dform.dk`
TXT	`v=spf1 a mx a:linux3.dform.dk ip4:91.98.139.7 ip6:2a01:4f8:1c1a:22c5::1 ?all`
SOA	`linux3.dform.dk`root@linux3.dform.dk 2026-01-20 #0

`dform.dk`

	DNSSEC	⚠️ Not signed
	A	2a01:4f8:1c1a:22c5::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
	A	91.98.139.7^{🇮🇷 Hetzner91.98.0.0/16 HETZNER-DC}
	NS	`linux3.dform.dk` ⭐ ⚠️ Not in parent delegation
	NS	`linux1.dform.dk` ⚠️ Not in zone NS records
	NS	`ns1.dform.dk`
	NS	`ns2.dform.dk`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`aspmx2.googlemail.com`⁽¹⁰⁾
	MX	`aspmx3.googlemail.com`⁽¹⁰⁾
	MX	`aspmx4.googlemail.com`⁽¹⁰⁾
	MX	`aspmx5.googlemail.com`⁽¹⁰⁾
	TXT	`google-site-verification=fdW4Z86bMJQPbTtP1ox9E1Q2cKgqeLoLp1RktYqqD60`
	TXT	`v=spf1 ip4:91.98.139.7 ip6:2a01:4f8:1c1a:22c5::1 include:aspmx.googlemail.com...`
	SOA	`linux3.dform.dk`root@linux3.dform.dk 2026-01-20 #0

📈 Tranco rank: #525,596

PTR for

7.139.98.91.in-addr.arpa

NS for

underudvikling.dk

linux3.dform.dk

dform.dk

d-form.dk

joomla-cms.dk

gci.dk

Same first word

linux3.com

Similar names

3linux.com

DNS History

3 records (3 active, 0 former)

●NSlinux3.dform.dk2026-02-14 → 2026-06-17 · 2 obs

● 2026-02-14 23:52:20
● 2026-06-17 17:06:20

●A2a01:4f8:1c1a:22c5::12026-02-14 → 2026-06-17 · 2 obs

● 2026-02-14 23:52:20
● 2026-06-17 17:06:20

●A91.98.139.72026-02-14 → 2026-06-17 · 2 obs

● 2026-02-14 23:52:20
● 2026-06-17 17:06:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	l.nic.dk, b.nic.dk, c.nic.dk, h.nic.dk...	-
dform.dk	ns1.dform.dk, ns2.dform.dk, linux1.dform.dk	5 records

✅ Authoritative Response

Server:65.21.180.171

NS records: ns1.dform.dk, ns2.dform.dk, linux1.dform.dk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dform.dk (unsigned zone)

⏱️ Timing

Total: 3568ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.98.139.7`
AAAA	1	`2a01:4f8:1c1a:22c5::1`
NS	1	`linux3.dform.dk`
TXT	1	`v=spf1 a mx a:linux3.dform.dk ip4:91.98.`
SOA	1	`linux3.dform.dk root.linux3.dform.dk`

📌 Glue Records Collected

Total: 5

In-bailiwick: 5 (ns1.dform.dk, ns1.dform.dk, ns2.dform.dk...)

Analysis

Name Server Role

Several domains — underudvikling.dk, linux3.dform.dk, dform.dk, d-form.dk, joomla-cms.dk and a few others — delegate their DNS to linux3.dform.dk as a name server.

ns1.dform.dk, ns2.dform.dk and linux1.dform.dk are often grouped with linux3.dform.dk to function as name servers.

IP Addresses

linux3.dform.dk directs to two IP numbers, 91.98.139.7 and 2a01:4f8:1c1a:22c5::1

Two other host names, along with linux3.d-form.dk, dd.d-form.dk and skoedecentret.dk, also share IP numbers with linux3.dform.dk.

Name Servers

The DNS delegation for linux3.dform.dk leads to one name server: linux3.dform.dk.

linux3.dform.dk has at least partial name server overlap with other domains, such as underudvikling.dk, dform.dk, d-form.dk and two others.

linux3.dform.dk has two IP addresses: 91.98.139.7 and 2a01:4f8:1c1a:22c5::1.