computerschule.de - robtex.com

computerschule.de

DNSSEC⚠️ Not signed
A213.160.69.3🇩🇪 ROUTING213.160.64.0/19 routing.net
NSdns11.netcologne.de ⭐
A2a03:2900:3:1::2🇩🇪 AS488232a03:2900::/32
PTRns1.routing.net
A134.0.30.178🇩🇪 AS48823134.0.24.0/21
PTRns1.routing.net
NSdns12.netcologne.de
A2001:4d8f:2::2🇩🇪 ROUTING-ANYCAST2001:4d8f::/32
PTRns2.routing.net
A194.50.113.2🇩🇪 ROUTING-ANYCAST194.50.113.0/24 vollmarnet-anycast-route
PTRns2.routing.net
NSdns13.netcologne.de
A2a03:2902:3:1::2🇩🇪 ACCELERATED-IT2a03:2902::/32 IP-Routing by firstcolo
PTRns3.routing.net
A194.126.196.2🇩🇪 ACCELERATED-IT194.126.196.0/24 IP-Routing by Accelerated IT Services GmbH
PTRns3.routing.net
NSdns14.netcologne.de
A185.11.139.126🇩🇪 AS48823185.11.136.0/22
SOAdns11.netcologne.dehostmaster@routing.net 2026-06-12 #0

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1786198629

Same first word

computerschule.de
computerschule.net
computerschule.ch
computerschule.koeln
computerschule.at

DNS History

14 records (5 active, 9 former)

20162017201820192020202120222023202420252026NSdns11.netcologne.dedns12.netcologne.dedns13.netcologne.dedns14.netcologne.dens1.oevermann.dens2.oevermann.dens3.oevermann.deMXmx01.oevermann.demx03.oevermann.deA213.160.69.3193.26.15.842001:4dd0:100:1f00:80:0:80:181.173.194.387.79.4.174
●NSdns11.netcologne.de2026-02-21 → 2026-08-08 · 3 obs
○ 2019-01-16 19:03:10
● 2026-02-21 07:40:54
● 2026-08-08 14:27:54
●NSdns12.netcologne.de2026-02-21 → 2026-08-08 · 3 obs
○ 2019-01-16 19:03:10
● 2026-02-21 07:40:54
● 2026-08-08 14:27:54
●NSdns13.netcologne.de2026-02-21 → 2026-08-08 · 3 obs
○ 2019-01-16 19:03:10
● 2026-02-21 07:40:54
● 2026-08-08 14:27:54
●NSdns14.netcologne.de2026-02-21 → 2026-08-08 · 3 obs
○ 2019-01-16 19:03:10
● 2026-02-21 07:40:54
● 2026-08-08 14:27:54
○NSns1.oevermann.de2015-05-23 → 2019-01-16 · 4 obs
● 2015-05-23 00:03:12
● 2019-01-16 19:03:10
○ 2026-02-21 07:40:54
○ 2026-08-08 14:27:54
○NSns2.oevermann.de2015-05-23 → 2019-01-16 · 4 obs
● 2015-05-23 00:03:12
● 2019-01-16 19:03:10
○ 2026-02-21 07:40:54
○ 2026-08-08 14:27:54
○NSns3.oevermann.de2015-05-23 → 2019-01-16 · 4 obs
● 2015-05-23 00:03:12
● 2019-01-16 19:03:10
○ 2026-02-21 07:40:54
○ 2026-08-08 14:27:54
○MXmx01.oevermann.de2015-05-23 → 2019-01-16 · 4 obs
● 2015-05-23 00:03:12
● 2019-01-16 19:03:10
○ 2026-02-21 07:40:54
○ 2026-08-08 14:27:54
○MXmx03.oevermann.de2015-05-23 → 2019-01-16 · 4 obs
● 2015-05-23 00:03:12
● 2019-01-16 19:03:10
○ 2026-02-21 07:40:54
○ 2026-08-08 14:27:54
○A193.26.15.842017-01-22 → 2019-01-16 · 5 obs
○ 2016-04-12 04:47:04
● 2017-01-22 19:44:38
● 2019-01-16 19:03:10
○ 2026-02-21 07:40:54
○ 2026-08-08 14:27:54
○A2001:4dd0:100:1f00:80:0:80:12026-02-21 → 2026-05-27 · 5 obs
○ 2019-01-16 19:03:10
● 2026-02-21 07:40:54
● 2026-05-27 11:49:24
○ 2026-06-25 07:57:16
○ 2026-08-08 14:27:54
●A213.160.69.32026-06-25 → 2026-08-08 · 3 obs
○ 2026-05-27 11:49:24
● 2026-06-25 07:57:16
● 2026-08-08 14:27:54
○A81.173.194.32026-02-21 → 2026-05-27 · 5 obs
○ 2019-01-16 19:03:10
● 2026-02-21 07:40:54
● 2026-05-27 11:49:24
○ 2026-06-25 07:57:16
○ 2026-08-08 14:27:54
○A87.79.4.1742015-05-23 → 2016-04-12 · 4 obs
● 2015-05-23 00:03:12
● 2016-04-12 04:47:04
○ 2017-01-22 19:44:38
○ 2026-08-08 14:27:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
computerschule.dedns11.netcologne.de, dns12.netcologne.de, dns13.netcologne.de, dns14.netcologne.de-

✅ Authoritative Response

Server:185.11.139.126

NS records: dns11.netcologne.de, dns12.netcologne.de, dns13.netcologne.de, dns14.netcologne.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for computerschule.de (unsigned zone)

⏱️ Timing

Total: 1105ms | Queries: -

📄 Records

TypeCountSample Data
A1213.160.69.3
NS4dns11.netcologne.de, dns13.netcologne.de...
SOA1dns11.netcologne.de hostmaster.routing.n

Analysis

IP Addresses

computerschule.de resolves to just one IP address, 213.160.69.3.

Two other host names, along with mail.spammails.com, bfc.cologne and mallorquin-bikes.es, also share IP numbers with computerschule.de.

Name Servers

The NS records for computerschule.de point to four name servers: dns11.netcologne.de, dns12.netcologne.de, dns13.netcologne.de and dns14.netcologne.de.

computerschule.de has at least partial name server overlap with other domains, such as verenen-hof.de, ksk-100pro.de, topsystem.de and two others.

Host names that have two IP addresses:

dns11.netcologne.de maps to two IP addresses — 134.0.30.178 and 2a03:2900:3:1::2.

dns12.netcologne.de maps to two IP addresses — 194.50.113.2 and 2001:4d8f:2::2.

dns13.netcologne.de maps to two IP addresses — 194.126.196.2 and 2a03:2902:3:1::2.

Host names that point to one IP address:

dns14.netcologne.de points to the IP address 185.11.139.126.