computerschule.koeln - dns.ninja

computerschule.koeln

DNSSEC⚠️ Not signed
A89.31.143.90🇩🇪 UDAG89.31.143.0/24
NSns.udag.de ⭐
A2001:8d8:fe:53:217:160:80:253🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns.udag.de
A217.160.80.253🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns.udag.de
NSns.udag.net
A2607:f1c0:fe:53:185:132:33:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns.udag.net
A185.132.33.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns.udag.net
NSns.udag.org
A2607:f1c0:fe:53:185:132:34:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns.udag.org
A185.132.34.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns.udag.org
MXmx00.udag.de ⭐
A62.146.106.39🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH
PTRmx00.udag.de
MXmx01.udag.de(20)
A62.146.106.40🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH
PTRmx01.udag.de
TXT9ebaecb17196dfa395808143148782e6de151ed6
TXTv=spf1 include:_smtp.udag.de ~all
SOAns.udag.dehostmaster@united-domains.de 2023-12-22 #3

koeln

DNSSEC🔒 Signed (DS record present)
NSns1.ryce-rsp.com ⭐
NSdns.ryce-rsp.com
NSns1.dns.business
SOAns1.ryce-rsp.comsupport@ryce-rsp.com 2025-08-04 #81

Same first word

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

DNS History

8 records (6 active, 2 former)

2017201820192020202120222023202420252026NSns.udag.dens.udag.netns.udag.orgMXmx00.udag.demx01.udag.deA89.31.143.9089.31.143.189.31.143.16
●NSns.udag.de2016-12-13 → 2026-08-08 · 2 obs
● 2016-12-13 02:49:54
● 2026-08-08 05:54:12
●NSns.udag.net2016-12-13 → 2026-08-08 · 2 obs
● 2016-12-13 02:49:54
● 2026-08-08 05:54:12
●NSns.udag.org2016-12-13 → 2026-08-08 · 2 obs
● 2016-12-13 02:49:54
● 2026-08-08 05:54:12
●MXmx00.udag.de2016-12-13 → 2026-08-08 · 2 obs
● 2016-12-13 02:49:54
● 2026-08-08 05:54:12
●MXmx01.udag.de2016-12-13 → 2026-08-08 · 2 obs
● 2016-12-13 02:49:54
● 2026-08-08 05:54:12
○A89.31.143.12017-10-18 → 2017-10-18 · 3 obs
○ 2016-12-13 02:49:54
● 2017-10-18 20:20:24
○ 2026-08-08 05:54:12
○A89.31.143.162016-12-13 → 2016-12-13 · 3 obs
● 2016-12-13 02:49:54
○ 2017-10-18 20:20:24
○ 2026-08-08 05:54:12
●A89.31.143.902026-08-08 → 2026-08-08 · 2 obs
○ 2017-10-18 20:20:24
● 2026-08-08 05:54:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
koelndns.ryce-rsp.com, ns1.dns.business, ns1.ryce-rsp.com6 records
computerschule.koelnns.udag.de, ns.udag.net, ns.udag.org-

✅ Authoritative Response

Server:185.132.34.253

NS records: ns.udag.de, ns.udag.net, ns.udag.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for computerschule.koeln (unsigned zone)

⏱️ Timing

Total: 1909ms | Queries: -

📄 Records

TypeCountSample Data
A189.31.143.90
NS3ns.udag.org, ns.udag.net...
MX2mx01.udag.de (pri: 20), mx00.udag.de (pri: 10)
TXT29ebaecb17196dfa395808143148782e6de151ed6, v=spf1 include:_smtp.udag.de ~all
SOA1ns.udag.de hostmaster.united-domains.de

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (dns.ryce-rsp.com, dns.ryce-rsp.com, ns1.dns.business...)

Analysis

IP Addresses

computerschule.koeln resolves to just one IP address, 89.31.143.90.

Two other host names, along with sonnenlegion.net, gartentipp.de and www.womeninthemartialarts.net, also share IP numbers with computerschule.koeln.

Name Servers

DNS for computerschule.koeln is handled by three authoritative name servers: ns.udag.de, ns.udag.net and ns.udag.org.

At least some of computerschule.koeln's name servers are shared with other domains, for example nemo-ai.com, heliodom.de, merhaut.co.at and two more.

Three hostnames — ns.udag.de, ns.udag.net and ns.udag.org — each have two IP addresses: ns.udag.de has 217.160.80.253 and 2001:8d8:fe:53:217:160:80:253, ns.udag.net has 185.132.33.253 and 2607:f1c0:fe:53:185:132:33:253, and ns.udag.org has 185.132.34.253 and 2607:f1c0:fe:53:185:132:34:253.

Mail Servers

computerschule.koeln is served by two mail servers, mx00.udag.de and mx01.udag.de.

Among the domains sharing a mail server setup with computerschule.koeln are restaurant.de, kitchenkaizen.com, pcbexchange.de and two others.

Each of mx00.udag.de and mx01.udag.de has one IP address: mx00.udag.de uses 62.146.106.39 and mx01.udag.de uses 62.146.106.40.