`postmaster.fdp-rtk.de`

DNSSEC	⚠️ Not signed
A	2a03:4000:6:8091::1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
		PTR	`heisenberg.fdphost.de`
A	37.120.178.219^{🇩🇪 netcup-AS37.120.176.0/22}

`fdp-rtk.de`

	DNSSEC	⚠️ Not signed
	A	2a03:4000:6:8091::1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
	A	37.120.178.219^{🇩🇪 netcup-AS37.120.176.0/22}
	NS	`ns2.inwx.de` ⭐
	NS	`ns.inwx.de`
	NS	`ns3.inwx.eu`
	MX	`mail.fdp-hessen.de` ⭐
	TXT	`v=spf1 a mx ~all`
	SOA	`ns.inwx.de`hostmaster@inwx.de 2022-10-28 #1

WOT: SAFE (60/100)

Same first word

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DNS History

3 records (2 active, 1 former)

●A2a03:4000:6:8091::12026-02-16 → 2026-05-11 · 3 obs

○ 2016-06-28 17:29:54
● 2026-02-16 02:11:58
● 2026-05-11 05:35:20

●A37.120.178.2192026-02-16 → 2026-05-11 · 3 obs

○ 2016-06-28 17:29:54
● 2026-02-16 02:11:58
● 2026-05-11 05:35:20

○A84.200.16.1702015-07-24 → 2016-06-28 · 4 obs

● 2015-07-24 04:34:12
● 2016-06-28 17:29:54
○ 2026-02-16 02:11:58
○ 2026-05-11 05:35:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
fdp-rtk.de	ns.inwx.de, ns3.inwx.eu, ns2.inwx.de	-

✅ Authoritative Response

Server:192.174.68.104

NS records: ns.inwx.de, ns3.inwx.eu, ns2.inwx.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fdp-rtk.de (unsigned zone)

⏱️ Timing

Total: 682ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.120.178.219`
AAAA	1	`2a03:4000:6:8091::1`

Analysis

IP Addresses

postmaster.fdp-rtk.de resolves to two IP numbers: 2a03:4000:6:8091::1 and 37.120.178.219.

Other host names, for instance heisenberg.fdphost.de, fdp-wiesbaden.de, fdp-schoeneck.de, mx0.fdp-giessen.net and fdp-stefan-mueller.de share IP numbers with postmaster.fdp-rtk.de.

postmaster.fdp-rtk.de - robtex.com