`studenten-programm.de`

DNSSEC	⚠️ Not signed
A	2a02:708:0:ab::2^{🇩🇪 ratiokontakt2a02:708::/32 GmbH}
		PTR	`win03.rw.serviceprovider.de`
A	212.223.17.18^{🇩🇪 ratiokontakt212.223.0.0/16 GmbH}
NS	`ns12.nameserver.de` ⭐
		A	2a02:708:0:25::2^{🇩🇪 ratiokontakt2a02:708::/32 GmbH}
			PTR	`ns12.nameserver.de`
		A	212.223.44.220^{🇩🇪 ratiokontakt212.223.0.0/16 GmbH}
			PTR	`ns12.nameserver.de`
NS	`ns11.nameserver.de`
		A	2a02:708:0:26::2^{🇩🇪 ratiokontakt2a02:708::/32 GmbH}
			PTR	`ns11.nameserver.de`
		A	212.223.44.219^{🇩🇪 ratiokontakt212.223.0.0/16 GmbH}
			PTR	`ns11.nameserver.de`
MX	`mail-in.studenten-programm.de` ⭐
		A	212.223.165.71^{🇩🇪 ratiokontakt212.223.0.0/16 GmbH}
			PTR	`frontend.clustermail.de`
SOA	`ns12.nameserver.de`dnsmaster@ns12.nameserver.de 2018-02-13 #3

`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=1774630298

Subdomains

mail-in.studenten-programm.de

Same first word

studenten-programm.de

DNS History

6 records (5 active, 1 former)

●NSns11.nameserver.de2015-06-12 → 2026-03-27 · 2 obs

● 2015-06-12 10:13:28
● 2026-03-27 17:15:20

●NSns12.nameserver.de2015-06-12 → 2026-03-27 · 2 obs

● 2015-06-12 10:13:28
● 2026-03-27 17:15:20

●MXmail-in.studenten-programm.de2015-06-12 → 2026-03-27 · 2 obs

● 2015-06-12 10:13:28
● 2026-03-27 17:15:20

○A212.223.165.2302015-06-12 → 2017-12-03 · 4 obs

● 2015-06-12 10:13:28
● 2017-12-03 02:37:38
○ 2026-02-17 20:13:18
○ 2026-03-27 17:15:20

●A212.223.17.182026-02-17 → 2026-03-27 · 3 obs

○ 2017-12-03 02:37:38
● 2026-02-17 20:13:18
● 2026-03-27 17:15:20

●A2a02:708:0:ab::22026-02-17 → 2026-03-27 · 3 obs

○ 2017-12-03 02:37:38
● 2026-02-17 20:13:18
● 2026-03-27 17:15:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
studenten-programm.de	ns11.nameserver.de, ns12.nameserver.de	4 records

✅ Authoritative Response

Server:212.223.44.220

NS records: ns11.nameserver.de, ns12.nameserver.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studenten-programm.de (unsigned zone)

⏱️ Timing

Total: 818ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.223.17.18`
AAAA	1	`2a02:708:0:ab::2`
NS	2	`ns11.nameserver.de, ns12.nameserver.de`
MX	1	`mail-in.studenten-programm.de (pri: 10)`
SOA	1	`ns12.nameserver.de dnsmaster.ns12.namese`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns12.nameserver.de, ns11.nameserver.de, ns12.nameserver.de...)

Analysis

Hierarchy

The parent of mail-in.studenten-programm.de is studenten-programm.de.

IP Addresses

studenten-programm.de points to two IP numbers: 2a02:708:0:ab::2 and 212.223.17.18.

Other host names, for instance metalife.ch, metaware.de, metaage.de, comidos.ch and peraltaindustrie.de share IP numbers with studenten-programm.de.

Name Servers

studenten-programm.de is delegated to two name servers: ns11.nameserver.de and ns12.nameserver.de.

studenten-programm.de uses the same name server setup as other domains, for instance c2me.eu, duerbeck.net, cadilac-laser.at, citycom.de and it-secon.de.

Host names with two IP numbers:

The host ns11.nameserver.de points to 2a02:708:0:26::2 and 212.223.44.219.

The host ns12.nameserver.de points to 2a02:708:0:25::2 and 212.223.44.220.

Mail Servers

The mail server for studenten-programm.de is mail-in.studenten-programm.de.

Host name mail-in.studenten-programm.de resolves to IP 212.223.165.71.

studenten-programm.de - robtex.com