external-knowledge.de - dns.ninja

external-knowledge.de

DNSSEC⚠️ Not signed
A51.195.113.188🇫🇷 OVH51.195.0.0/16
PTRmail1.external-knowledge.de
NSns1.fritzflash.de ⭐
A212.162.15.6🇩🇪 PLUSSERVER-ASN1212.162.12.0/22 Symgenius GmbH & Co. KG
PTRns3.nsentry.de
NSns2.fritzflash.de
A213.203.243.76🇩🇪 PLUSSERVER-ASN1213.203.240.0/21 PlusServer GmbH Aggregate Hamburg
MXoffice.external-knowledge.de ⭐
A87.140.34.178🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider
PTRoffice.external-knowledge.de
PTRp578c22b2.dip0.t-ipconnect.de
MXofficeqsc.external-knowledge.de(20)
A217.146.132.176🇩🇪 PLUSNET217.146.128.0/19 Plusnet GmbH
PTRofficeqsc.external-knowledge.de
TXTgoogle-site-verification=ULNl-R30D96c6c2hgf3zDHol-DAxNcE9dGR2NQTnck8
TXTtmes=94d2ad3dae6b2696f45869ba959d05c7
TXTv=spf1 mx a:office.external-knowledge.de a:officeqsc.external-knowledge.de ip...
SOAns1.fritzflash.dehostmaster@external-knowledge.de 2025-01-08 #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=1786186466

Subdomains

office.external-knowledge.de
bigbrother.external-knowledge.de
mail.external-knowledge.de
mail1.external-knowledge.de
officeqsc.external-knowledge.de

Same first word

external-knowledge.de

DNS History

11 records (5 active, 6 former)

20162017201820192020202120222023202420252026NSns1.fritzflash.dens2.fritzflash.dens5.kasserver.comns6.kasserver.comMXoffice.external-knowledge.deofficeqsc.external-knowledge.demail.dirch.netmail.external-knowledge.dew00b0b32.kasserver.comA51.195.113.18885.13.132.239
●NSns1.fritzflash.de2026-02-26 → 2026-08-08 · 3 obs
○ 2018-08-19 07:50:32
● 2026-02-26 23:35:02
● 2026-08-08 11:19:28
●NSns2.fritzflash.de2026-02-26 → 2026-08-08 · 3 obs
○ 2018-08-19 07:50:32
● 2026-02-26 23:35:02
● 2026-08-08 11:19:28
○NSns5.kasserver.com2015-06-27 → 2018-08-19 · 4 obs
● 2015-06-27 16:14:28
● 2018-08-19 07:50:32
○ 2026-02-26 23:35:02
○ 2026-08-08 11:19:28
○NSns6.kasserver.com2015-06-27 → 2018-08-19 · 4 obs
● 2015-06-27 16:14:28
● 2018-08-19 07:50:32
○ 2026-02-26 23:35:02
○ 2026-08-08 11:19:28
○MXmail.dirch.net2015-06-27 → 2018-08-19 · 4 obs
● 2015-06-27 16:14:28
● 2018-08-19 07:50:32
○ 2026-02-26 23:35:02
○ 2026-08-08 11:19:28
○MXmail.external-knowledge.de2015-06-27 → 2016-09-19 · 4 obs
● 2015-06-27 16:14:28
● 2016-09-19 21:23:54
○ 2018-08-19 07:50:32
○ 2026-08-08 11:19:28
●MXoffice.external-knowledge.de2015-06-27 → 2026-08-08 · 2 obs
● 2015-06-27 16:14:28
● 2026-08-08 11:19:28
●MXofficeqsc.external-knowledge.de2026-02-26 → 2026-08-08 · 3 obs
○ 2018-08-19 07:50:32
● 2026-02-26 23:35:02
● 2026-08-08 11:19:28
○MXw00b0b32.kasserver.com2018-08-19 → 2018-08-19 · 4 obs
○ 2016-09-19 21:23:54
● 2018-08-19 07:50:32
○ 2026-02-26 23:35:02
○ 2026-08-08 11:19:28
●A51.195.113.1882026-02-26 → 2026-08-08 · 3 obs
○ 2018-08-19 07:50:32
● 2026-02-26 23:35:02
● 2026-08-08 11:19:28
○A85.13.132.2392015-06-27 → 2018-08-19 · 4 obs
● 2015-06-27 16:14:28
● 2018-08-19 07:50:32
○ 2026-02-26 23:35:02
○ 2026-08-08 11:19:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
def.nic.de, a.nic.de, z.nic.de-
external-knowledge.dens1.fritzflash.de, ns2.fritzflash.de-

✅ Authoritative Response

Server:213.203.243.76

NS records: ns1.fritzflash.de, ns2.fritzflash.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for external-knowledge.de (unsigned zone)

⏱️ Timing

Total: 886ms | Queries: -

📄 Records

TypeCountSample Data
A151.195.113.188
NS2ns1.fritzflash.de, ns2.fritzflash.de
MX2officeqsc.external-knowledge.de (pri: 20, office.external-knowledge.de (pri: 10)
TXT3google-site-verification=ULNl-R30D96c6c2, tmes=94d2ad3dae6b2696f45869ba959d05c7...
SOA1ns1.fritzflash.de hostmaster.external-kn

Analysis

Hierarchy

external-knowledge.de is a parent domain of office.external-knowledge.de, bigbrother.external-knowledge.de, mail.external-knowledge.de, mail1.external-knowledge.de and officeqsc.external-knowledge.de.

IP Addresses

external-knowledge.de points to a single IP number: 51.195.113.188.

Additional host names — mail1.external-knowledge.de, ernst-mager.com, dirch.net and two others — share IP numbers with external-knowledge.de.

Name Servers

DNS delegation for external-knowledge.de points to two name servers: ns1.fritzflash.de and ns2.fritzflash.de.

external-knowledge.de shares its name server setup with other domains, including ek09.de, magerdata.com, freyn.com and two others.

external-knowledge.de has some name servers in common with other domains such as kabelaffe.com, fritzflash.de and wop-software.com

These name servers are frequently paired with the name servers ns3.nsentry.de and ns4.nsentry.de.

ns1.fritzflash.de and ns2.fritzflash.de each resolve to one IP number: ns1.fritzflash.de points to 212.162.15.6 and ns2.fritzflash.de points to 213.203.243.76.

Mail Servers

external-knowledge.de has two mail servers: office.external-knowledge.de and officeqsc.external-knowledge.de.

external-knowledge.de shares at least some of its mail servers with other domains, such as ek09.de.

office.external-knowledge.de and officeqsc.external-knowledge.de each resolve to one IP number: office.external-knowledge.de points to 87.140.34.178 and officeqsc.external-knowledge.de points to 217.146.132.176.