`linode2.netmaster.dk`

DNSSEC	⚠️ Not signed
A	139.177.177.15^{🇩🇪 AKAMAI-LINODE-AP139.177.176.0/21 Akamai Technologies}
		PTR	`linode2.netmaster.dk`
TXT	`v=spf1 ip4:139.177.177.15 ~all`

`netmaster.dk`

	DNSSEC	🔒 Signed (DS record present)
	A	139.177.177.15^{🇩🇪 AKAMAI-LINODE-AP139.177.176.0/21 Akamai Technologies}
	NS	`ns01.one.com` ⭐
	NS	`ns02.one.com`
	MX	`linode2.netmaster.dk` ⭐
	TXT	`v=spf1 ip4:139.177.177.15 ip4:139.162.141.251 ip6:2a01:7e01::2000:16ff:fe34:8...`
	TXT	`google-site-verification=YP0zGf6zlBrxGYLjDW9vnXdExreTRsjIiKXsz9Kr5_Q`
	SOA	`ns01.one.com`hostmaster@one.com 2026-03-24 #1

PTR for

a.c.1.d.9.8.e.f.f.f.3.9.c.3.0.f.0.0.0.0.0.0.0.0.1.0.e.7.1.0.a.2.ip6.arpa

15.177.177.139.in-addr.arpa

MX for

jcvh.net

dipinfo.dk

netmaster.dk

DNS History

3 records (1 active, 2 former)

●A139.177.177.152026-02-16 → 2026-04-13 · 3 obs

○ 2020-02-14 21:02:42
● 2026-02-16 07:38:14
● 2026-04-13 08:17:08

○A172.105.85.1142020-02-14 → 2020-02-14 · 3 obs

● 2020-02-14 21:02:42
○ 2026-02-16 07:38:14
○ 2026-04-13 08:17:08

○A2a01:7e01::f03c:91ff:feab:d86d2020-02-14 → 2020-02-14 · 3 obs

● 2020-02-14 21:02:42
○ 2026-02-16 07:38:14
○ 2026-04-13 08:17:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk...	-
netmaster.dk	ns01.one.com, ns02.one.com	-

✅ Authoritative Response

Server:195.206.121.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 696ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`139.177.177.15`
TXT	1	`v=spf1 ip4:139.177.177.15 ~all`

Analysis

Mail Server Role

linode2.netmaster.dk acts as mail server for jcvh.net, dipinfo.dk and netmaster.dk.

IP Addresses

linode2.netmaster.dk points to a single IP number: 139.177.177.15.

Other host names, for example radik.dk, mail.netmaster.dk, dipinfo.dk and netmaster.dk share IP numbers with linode2.netmaster.dk.

linode2.netmaster.dk - robtex.com