koop.dev - dns.ninja

koop.dev

DNSSEC🔒 Signed (DS record present)
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 2026-07-02 #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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Similar names

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kopo.ac.kr
kopo.fr
poko.no
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pook.fi
opok.de
poko.se
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 → 2026-07-04 · 2 obs
● 2026-03-16 18:29:32
● 2026-07-04 18:57:12
●NSfourth.ns.koop.systems2026-03-16 → 2026-07-04 · 2 obs
● 2026-03-16 18:29:32
● 2026-07-04 18:57:12
●NSsecond.ns.koop.systems2026-03-16 → 2026-07-04 · 2 obs
● 2026-03-16 18:29:32
● 2026-07-04 18:57:12
●MXmail.koop.systems2026-03-16 → 2026-07-04 · 2 obs
● 2026-03-16 18:29:32
● 2026-07-04 18:57:12
●A2a01:4f8:c012:8de7::fee1:dead2026-03-16 → 2026-07-04 · 2 obs
● 2026-03-16 18:29:32
● 2026-07-04 18:57:12
●A88.99.87.1202026-03-16 → 2026-07-04 · 2 obs
● 2026-03-16 18:29:32
● 2026-07-04 18:57:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com...-
koop.devsecond.ns.koop.systems, fourth.ns.koop.systems, first.ns.koop.systems-

✅ Authoritative Response

Server:212.132.116.72

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1233ms | Queries: -

📄 Records

TypeCountSample Data
A188.99.87.120
AAAA12a01:4f8:c012:8de7::fee1:dead
NS3first.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 directs to two IP numbers, 88.99.87.120 and 2a01:4f8:c012:8de7::fee1:dead

iridium.koop.systems, tknc.de, mail.koop.systems plus two other host names have IP numbers in common with koop.dev.

Name Servers

koop.dev has three name servers — first.ns.koop.systems, fourth.ns.koop.systems and second.ns.koop.systems.

Some of koop.dev's name servers are also used by other domains, including tknc.de, 0x58.de, tim-koop.de and koop.systems.

Each of first.ns.koop.systems, fourth.ns.koop.systems and second.ns.koop.systems points to two IP numbers. first.ns.koop.systems points to 88.99.87.120 and 2a01:4f8:c012:8de7::fee1:dead. fourth.ns.koop.systems points to 212.132.116.72 and 2a01:239:274:aa00::1. second.ns.koop.systems points to 194.13.82.74 and 2a03:4000:43:190::1.

Mail Servers

koop.dev uses one mail server — mail.koop.systems.

The mail server setup of koop.dev matches that of 0x58.de, tim-koop.de, koop.systems and tknc.de, among other domains.

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