koop.dev - robtex.com

koop.dev

DNSSEC⚠️ Not signed
A2a01:4f8:c012:8de7::fee1:dead🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRiridium.koop.systems
A88.99.87.120🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC
NSfirst.ns.koop.systems ⭐
A2a01:4f8:c012:8de7::fee1:dead🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRiridium.koop.systems
A88.99.87.120🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC
PTRiridium.koop.systems
NSfourth.ns.koop.systems
A2a01:239:274:aa00::1🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de
A212.132.116.72🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de
PTRbarium.koop.systems
NSsecond.ns.koop.systems
A2a03:4000:43:190::1🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH
PTRargon.koop.systems
A194.13.82.74🇩🇪 netcup-AS194.13.80.0/22
PTRargon.koop.systems
MXmail.koop.systems ⭐
A2a01:4f8:c012:8de7::fee1:dead🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRiridium.koop.systems
A88.99.87.120🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC
PTRiridium.koop.systems
TXTv=spf1 mx include:koop.systems -all
SOAfirst.ns.koop.systemshostmaster@koop.systems 2026-03-12 #1

dev

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com ⭐
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1
🔒 HSTS Preload (+subdomains)

Same first word

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koop.immo
koop.dk
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Similar names

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opko.cl
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poko.de
kopo.ac.kr
kopo.fr
poko.no
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poko.life
poko.be

DNS History

6 records (6 active, 0 former)

NSfirst.ns.koop.systemsfourth.ns.koop.systemssecond.ns.koop.systemsMXmail.koop.systemsA2a01:4f8:c012:8de7::fee1:dead88.99.87.120
●NSfirst.ns.koop.systems2026-03-16 → 2026-03-18 · 2 obs
● 2026-03-16 18:29:32
● 2026-03-18 09:57:16
●NSfourth.ns.koop.systems2026-03-16 → 2026-03-18 · 2 obs
● 2026-03-16 18:29:32
● 2026-03-18 09:57:16
●NSsecond.ns.koop.systems2026-03-16 → 2026-03-18 · 2 obs
● 2026-03-16 18:29:32
● 2026-03-18 09:57:16
●MXmail.koop.systems2026-03-16 → 2026-03-18 · 2 obs
● 2026-03-16 18:29:32
● 2026-03-18 09:57:16
●A2a01:4f8:c012:8de7::fee1:dead2026-03-16 → 2026-03-18 · 2 obs
● 2026-03-16 18:29:32
● 2026-03-18 09:57:16
●A88.99.87.1202026-03-16 → 2026-03-18 · 2 obs
● 2026-03-16 18:29:32
● 2026-03-18 09:57:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld2.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
koop.devsecond.ns.koop.systems, first.ns.koop.systems, fourth.ns.koop.systems-

✅ Authoritative Response

Server: 88.99.87.120

NS records: second.ns.koop.systems, first.ns.koop.systems, fourth.ns.koop.systems

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1328ms | Queries: -

📄 Records

TypeCountSample Data
A188.99.87.120
AAAA12a01:4f8:c012:8de7::fee1:dead
NS3second.ns.koop.systems, fourth.ns.koop.systems...
MX1mail.koop.systems (pri: 10)
TXT1v=spf1 mx include:koop.systems -all
SOA1first.ns.koop.systems hostmaster.koop.sy

Analysis

IP Addresses

koop.dev has two IP numbers: 2a01:4f8:c012:8de7::fee1:dead and 88.99.87.120.

Other host names, for instance iridium.koop.systems, tknc.de, mail.koop.systems, 0x58.de and tim-koop.de share IP numbers with koop.dev.

Name Servers

koop.dev is delegated to three name servers: first.ns.koop.systems, fourth.ns.koop.systems and second.ns.koop.systems.

koop.dev at least partially shares name servers with other domains, for instance tknc.de, 0x58.de, tim-koop.de and koop.systems.

Host names with two IP numbers:

first.ns.koop.systems: 2a01:4f8:c012:8de7::fee1:dead and 88.99.87.120

fourth.ns.koop.systems: 2a01:239:274:aa00::1 and 212.132.116.72

second.ns.koop.systems: 2a03:4000:43:190::1 and 194.13.82.74

Mail Servers

A single mail server handles koop.dev, mail.koop.systems.

koop.dev shares its mail server setup with other domains, including 0x58.de, tim-koop.de, koop.systems and tknc.de.

The host name mail.koop.systems resolves to two IP numbers: 2a01:4f8:c012:8de7::fee1:dead and 88.99.87.120.