`schule-studium.de`

DNSSEC	⚠️ Not signed
A	148.251.70.173^{🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2}
		PTR	`static.173.70.251.148.clients.your-server.de`
NS	`ns11.prosite.de` ⭐
		A	2a02:8b8:704::3011^{🇩🇪 SPEEDBONE-AS2a02:8b8::/32 IPv6}
		A	217.13.192.2^{🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH}
			PTR	`ns11.prosite.de`
NS	`ns12.prosite.de`
		A	2a02:8b8:704::3012^{🇩🇪 SPEEDBONE-AS2a02:8b8::/32 IPv6}
		A	217.13.193.2^{🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH}
			PTR	`ns12.prosite.de`
MX	`mx1.schule-studium.de` ⭐
		A	217.13.200.24^{🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH}
MX	`mx2.schule-studium.de`⁽²⁰⁾
		A	217.13.200.22^{🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH}
SOA	`ns11.prosite.de`hostmaster@schule-studium.de 2026-03-26 #1

`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=1774617392

WOT: SAFE (89/100)

Subdomains

mx2.schule-studium.de

mx1.schule-studium.de

Same first word

schule-studium.de

DNS History

6 records (5 active, 1 former)

●NSns11.prosite.de2015-07-24 → 2026-03-27 · 2 obs

● 2015-07-24 09:08:32
● 2026-03-27 13:34:44

●NSns12.prosite.de2015-07-24 → 2026-03-27 · 2 obs

● 2015-07-24 09:08:32
● 2026-03-27 13:34:44

●MXmx1.schule-studium.de2015-07-24 → 2026-03-27 · 2 obs

● 2015-07-24 09:08:32
● 2026-03-27 13:34:44

●MXmx2.schule-studium.de2015-07-24 → 2026-03-27 · 2 obs

● 2015-07-24 09:08:32
● 2026-03-27 13:34:44

●A148.251.70.1732026-02-24 → 2026-03-27 · 3 obs

○ 2017-06-02 20:42:00
● 2026-02-24 03:28:44
● 2026-03-27 13:34:44

○A78.46.80.2282015-07-24 → 2017-06-02 · 4 obs

● 2015-07-24 09:08:32
● 2017-06-02 20:42:00
○ 2026-02-24 03:28:44
○ 2026-03-27 13:34:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
schule-studium.de	ns12.prosite.de, ns11.prosite.de	-

✅ Authoritative Response

Server:217.13.192.2

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schule-studium.de (unsigned zone)

⏱️ Timing

Total: 970ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`148.251.70.173`
NS	2	`ns11.prosite.de, ns12.prosite.de`
MX	2	`mx1.schule-studium.de (pri: 10), mx2.schule-studium.de (pri: 20)`
SOA	1	`ns11.prosite.de hostmaster.schule-studiu`

Analysis

Hierarchy

schule-studium.de is a parent of mx2.schule-studium.de and mx1.schule-studium.de.

IP Addresses

schule-studium.de points to a single IP number: 148.251.70.173.

Other host names, for instance www.penguinreaders.de, static.173.70.251.148.clients.your-server.de, english-readers.de and penguinreaders.de share IP numbers with schule-studium.de.

Name Servers

Delegation for schule-studium.de rests with two name servers, ns11.prosite.de and ns12.prosite.de.

schule-studium.de shares the same name server setup as other domains, including rootmap.de, esf-info.de, denker24.de, aidportal.net and kathma.net.

schule-studium.de at least partially shares name servers with other domains, for instance battlestorm.de, hlins.de, xcor.org, erfolgs-reporte.de and homeemail.de.

These name servers are commonly used with ns11.worldserver.net and ns12.worldserver.net.

Host names with two IP numbers: ns11.prosite.de points to 2a02:8b8:704::3011 and 217.13.192.2; ns12.prosite.de points to 2a02:8b8:704::3012 and 217.13.193.2.

Mail Servers

schule-studium.de is handled by two mail servers: mx1.schule-studium.de and mx2.schule-studium.de.

Host names with one IP number: mx1.schule-studium.de points to 217.13.200.24; mx2.schule-studium.de points to 217.13.200.22.

schule-studium.de - robtex.com