`steuerundstudium.de`

DNSSEC	⚠️ Not signed
A	217.150.147.226^{🇩🇪 SCZN-AS217.150.144.0/21 SCZN Prefix-21}
NS	`pns.dtag.de` ⭐
		A	2003:40:8000::100^{🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space}
		A	194.25.0.125^{🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider}
			PTR	`pns.dtag.de`
NS	`ns1.telekom.net`
		A	2003:180:a:1000::53^{🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space}
			PTR	`ns1.telekom.net`
		A	212.185.24.65^{🇩🇪 DTAG212.184.0.0/15 Deutsche Telekom AG, Internet service provider}
			PTR	`ns1.telekom.net`
MX	`mail1.steuerundstudium.de` ⭐
		A	217.243.175.203^{🇩🇪 DTAG217.224.0.0/11 Deutsche Telekom AG, Internet service provider}
			PTR	`mail1.kiehl.de`
			PTR	`mail1.nwb.de`
MX	`mail2.steuerundstudium.de`⁽²⁰⁾
		A	217.243.175.204^{🇩🇪 DTAG217.224.0.0/11 Deutsche Telekom AG, Internet service provider}
			PTR	`mail2.kiehl.de`
			PTR	`mail2.nwb.de`
MX	`mforward.dtag.de`⁽³⁰⁾
		A	194.25.242.123^{🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider}
			PTR	`mforward.dtag.de`
SOA	`pns.dtag.de`dns@telekom.de 2021-08-14 #0

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1776914543

Subdomains

mail2.steuerundstudium.de

mail1.steuerundstudium.de

Same first word

steuerundstudium.de

DNS History

8 records (6 active, 2 former)

●NSns1.telekom.net2026-02-15 → 2026-04-23 · 3 obs

○ 2017-04-05 16:10:24
● 2026-02-15 00:41:26
● 2026-04-23 03:42:22

●NSpns.dtag.de2009-01-05 → 2026-04-23 · 2 obs

● 2009-01-05 15:32:14
● 2026-04-23 03:42:22

○NSsecondary007.dtag.net2009-01-05 → 2017-04-05 · 4 obs

● 2009-01-05 15:32:14
● 2017-04-05 16:10:24
○ 2026-02-15 00:41:26
○ 2026-04-23 03:42:22

●MXmail1.steuerundstudium.de2009-01-05 → 2026-04-23 · 2 obs

● 2009-01-05 15:32:14
● 2026-04-23 03:42:22

●MXmail2.steuerundstudium.de2009-01-05 → 2026-04-23 · 2 obs

● 2009-01-05 15:32:14
● 2026-04-23 03:42:22

●MXmforward.dtag.de2009-01-05 → 2026-04-23 · 2 obs

● 2009-01-05 15:32:14
● 2026-04-23 03:42:22

●A217.150.147.2262015-08-08 → 2026-04-23 · 3 obs

○ 2009-01-05 15:32:14
● 2015-08-08 19:22:48
● 2026-04-23 03:42:22

○A62.156.145.1082009-01-05 → 2009-01-05 · 3 obs

● 2009-01-05 15:32:14
○ 2015-08-08 19:22:48
○ 2026-04-23 03:42:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
steuerundstudium.de	ns1.telekom.net, pns.dtag.de	2 records

✅ Authoritative Response

Server:212.185.24.65

NS records: ns1.telekom.net, pns.dtag.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for steuerundstudium.de (unsigned zone)

⏱️ Timing

Total: 1282ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.150.147.226`
NS	2	`ns1.telekom.net, pns.dtag.de`
MX	3	`mail1.steuerundstudium.de (pri: 10), mforward.dtag.de (pri: 30)...`
SOA	1	`pns.dtag.de dnsadmin.nic.dtag.de`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pns.dtag.de, pns.dtag.de)

Analysis

Hierarchy

steuerundstudium.de is a parent of mail2.steuerundstudium.de and mail1.steuerundstudium.de.

IP Addresses

steuerundstudium.de resolves to one IP number: 217.150.147.226.

Other host names, for instance n-kompass.ch, nnavigator.at, nawi-kon.at, nwb-nachrichten.de and n-manager.com share IP numbers with steuerundstudium.de.

Name Servers

steuerundstudium.de's delegation uses two name servers: pns.dtag.de and ns1.telekom.net.

steuerundstudium.de uses the same name server setup as other domains, such as dekf.de, weingraf.de, midrange-systems.at, dfhag.com and wm-trost.de.

steuerundstudium.de at least partially shares name servers with other domains, including shkwerkzeug.com, immotermin.de, 2.91.in-addr.arpa, integration-activate-here.com and 209.25.194.in-addr.arpa.

these name servers are commonly used with secondary006.dtag.net, secondary007.dtag.net, secondary004.dtag.net, ns1.vgp.de, ns2.vgp.de, dnsreh01.rehau.com, dnsreh02.rehau.com, pns2.am-gruppe.de and pns.am-gruppe.de.

Host names with two IPs:

pns.dtag.de points to 2003:40:8000::100 and 194.25.0.125

ns1.telekom.net points to 2003:180:a:1000::53 and 212.185.24.65

Mail Servers

Three mail servers handle steuerundstudium.de: mforward.dtag.de, mail1.steuerundstudium.de and mail2.steuerundstudium.de.

steuerundstudium.de shares at least some mail servers with other domains, for example pv-werkstatt-kompass.de, neptun-travel.com, deutsche-knochenmarkspende.de, hauptschul-power.de and theater.altenburg.gera.de.

these mail servers are often used with iprelay1.diebayerische.de, iprelay2.diebayerische.de, mail2.rhoen-klinikum-ag.com and mail.rhoen-klinikum-ag.com.

Host names with a single IP:

mforward.dtag.de points to 194.25.242.123; mail1.steuerundstudium.de points to 217.243.175.203; mail2.steuerundstudium.de points to 217.243.175.204.

steuerundstudium.de - robtex.com