knowledgetools.de - dns.ninja

knowledgetools.de

DNSSEC⚠️ Not signed
A188.34.117.183🇩🇪 SCHWARZ-IT188.34.116.0/22
NSns1.stackit.cloud ⭐
A2001:67c:1bc::16🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast
PTRns1.dns.stackit.cloud
A192.174.68.16🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net
PTRns1.dns.stackit.cloud
NSns2.stackit.zone
A2001:67c:10b8::16🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net
PTRns2.dns.stackit.cloud
A176.97.158.16🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net
PTRns2.dns.stackit.cloud
MXmail.rulemapping.app ⭐
A188.34.67.238🇩🇪 SCHWARZ-IT188.34.64.0/22
PTRmail.rulemapping.app
TXTgoogle-site-verification=vlqTYUKnLRd8NROPx8n-EwAhhXpivWtfTZ-v7vL8qC0
TXTv=spf1 a mx a:mx5.knowledgetools.de a:mail.rulemapping.app ~all
SOAns1.stackit.cloudhostmaster@stackit.cloud 2026-07-02 #12

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=1784695977

Subdomains

dns6.knowledgetools.de
www.knowledgetools.de
mail.knowledgetools.de
wallstrasse.knowledgetools.de
friedrichstrasse.knowledgetools.de
dns5.knowledgetools.de
quinn.knowledgetools.de

Same first word

knowledgetools.at
knowledgetools.com.au
knowledgetools.ch
knowledgetools.info
knowledgetools.com.br
knowledgetools.de

DNS History

19 records (4 active, 15 former)

20162017201820192020202120222023202420252026NSns1.stackit.cloudns2.stackit.zoneb.ns14.netc.ns14.netdns1.epag.netdns1.knowledgetools.dedns2.epag.netdns5-ktools.unbelievable-machine.netdns5.knowledgetools.dedns6-ktools.unbelievable-machine.netdns6.knowledgetools.deMXmail.rulemapping.appmx1.knowledgetools.demx2.knowledgetools.demx5.knowledgetools.deA188.34.117.183144.76.178.14878.46.215.20778.46.225.107
○NSb.ns14.net2026-03-04 → 2026-04-30 · 5 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
● 2026-04-30 08:13:24
○ 2026-05-15 04:11:14
○ 2026-07-22 05:17:50
○NSc.ns14.net2026-03-04 → 2026-04-30 · 5 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
● 2026-04-30 08:13:24
○ 2026-05-15 04:11:14
○ 2026-07-22 05:17:50
○NSdns1.epag.net2015-07-06 → 2017-02-05 · 4 obs
● 2015-07-06 11:41:42
● 2017-02-05 13:03:20
○ 2026-03-04 18:11:54
○ 2026-07-22 05:17:50
○NSdns1.knowledgetools.de2015-07-06 → 2017-02-05 · 4 obs
● 2015-07-06 11:41:42
● 2017-02-05 13:03:20
○ 2026-03-04 18:11:54
○ 2026-07-22 05:17:50
○NSdns2.epag.net2015-07-06 → 2017-02-05 · 4 obs
● 2015-07-06 11:41:42
● 2017-02-05 13:03:20
○ 2026-03-04 18:11:54
○ 2026-07-22 05:17:50
○NSdns5-ktools.unbelievable-machine.net2026-03-04 → 2026-04-30 · 5 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
● 2026-04-30 08:13:24
○ 2026-05-15 04:11:14
○ 2026-07-22 05:17:50
○NSdns5.knowledgetools.de2026-03-04 → 2026-04-30 · 5 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
● 2026-04-30 08:13:24
○ 2026-05-15 04:11:14
○ 2026-07-22 05:17:50
○NSdns6-ktools.unbelievable-machine.net2026-03-04 → 2026-04-30 · 5 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
● 2026-04-30 08:13:24
○ 2026-05-15 04:11:14
○ 2026-07-22 05:17:50
○NSdns6.knowledgetools.de2026-03-04 → 2026-04-30 · 5 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
● 2026-04-30 08:13:24
○ 2026-05-15 04:11:14
○ 2026-07-22 05:17:50
●NSns1.stackit.cloud2026-05-15 → 2026-07-22 · 3 obs
○ 2026-04-30 08:13:24
● 2026-05-15 04:11:14
● 2026-07-22 05:17:50
●NSns2.stackit.zone2026-05-15 → 2026-07-22 · 3 obs
○ 2026-04-30 08:13:24
● 2026-05-15 04:11:14
● 2026-07-22 05:17:50
●MXmail.rulemapping.app2026-07-05 → 2026-07-22 · 3 obs
○ 2026-03-04 18:11:54
● 2026-07-05 08:12:14
● 2026-07-22 05:17:50
○MXmx1.knowledgetools.de2015-07-06 → 2017-02-05 · 4 obs
● 2015-07-06 11:41:42
● 2017-02-05 13:03:20
○ 2026-03-04 18:11:54
○ 2026-07-22 05:17:50
○MXmx2.knowledgetools.de2015-07-06 → 2017-02-05 · 4 obs
● 2015-07-06 11:41:42
● 2017-02-05 13:03:20
○ 2026-03-04 18:11:54
○ 2026-07-22 05:17:50
○MXmx5.knowledgetools.de2026-03-04 → 2026-03-04 · 4 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
○ 2026-07-05 08:12:14
○ 2026-07-22 05:17:50
○A144.76.178.1482015-07-06 → 2017-02-05 · 4 obs
● 2015-07-06 11:41:42
● 2017-02-05 13:03:20
○ 2026-03-04 18:11:54
○ 2026-07-22 05:17:50
●A188.34.117.1832026-06-04 → 2026-07-22 · 3 obs
○ 2026-05-28 07:55:40
● 2026-06-04 09:55:08
● 2026-07-22 05:17:50
○A78.46.215.2072026-03-04 → 2026-05-28 · 5 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
● 2026-05-28 07:55:40
○ 2026-06-04 09:55:08
○ 2026-07-22 05:17:50
○A78.46.225.1072026-03-04 → 2026-05-28 · 5 obs
○ 2017-02-05 13:03:20
● 2026-03-04 18:11:54
● 2026-05-28 07:55:40
○ 2026-06-04 09:55:08
○ 2026-07-22 05:17:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
knowledgetools.dens1.stackit.cloud, ns2.stackit.zone-

✅ Authoritative Response

Server:176.97.158.16

NS records: ns1.stackit.cloud, ns2.stackit.zone

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledgetools.de (unsigned zone)

⏱️ Timing

Total: 801ms | Queries: -

📄 Records

TypeCountSample Data
A1188.34.117.183
NS2ns1.stackit.cloud, ns2.stackit.zone
MX1mail.rulemapping.app (pri: 10)
TXT2google-site-verification=vlqTYUKnLRd8NRO, v=spf1 a mx a:mx5.knowledgetools.de a:ma
SOA1ns1.stackit.cloud hostmaster.stackit.clo

Analysis

Hierarchy

knowledgetools.de is a parent domain; its children include dns6.knowledgetools.de, www.knowledgetools.de, mail.knowledgetools.de, wallstrasse.knowledgetools.de, friedrichstrasse.knowledgetools.de and a few other host names.

IP Addresses

knowledgetools.de has exactly one IP address — 188.34.117.183.

Name Servers

knowledgetools.de uses two name servers for its delegation: ns1.stackit.cloud and ns2.stackit.zone.

The name server configuration of knowledgetools.de is shared with other domains, for instance 5.17.213.in-addr.arpa, telemetry-hub.eu01.onstackit.cloud, aa.dev.cdn.onstackit.cloud and two others.

knowledgetools.de partially shares its NS delegation with several other domains, including stackit.rocks, stackit.gg, prod.meissa.de and two others.

These name servers regularly co-occur with the name servers ns1.dns.stackit.cloud, ns2.dns.stackit.cloud and ns2.stackit.cloud.

The two host names ns1.stackit.cloud and ns2.stackit.zone each have a pair of IP addresses: ns1.stackit.cloud has 192.174.68.16 and 2001:67c:1bc::16, and ns2.stackit.zone has 176.97.158.16 and 2001:67c:10b8::16.

Mail Servers

knowledgetools.de uses one mail server — mail.rulemapping.app.

The mail server setup of knowledgetools.de is identical to that of domains like knowledgetools.info, rulemapping.app and complexcontracts.de.

mail.rulemapping.app directs to just one IP number, 188.34.67.238.