koster.cloud - dns.ninja
koster.cloud
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:238:20a:202:1088::🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| A | 81.169.145.88🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| NS | docks20.rzone.de ⭐ | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:20🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | docks20.rzone.de | ||||||
| A | 217.160.80.147🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | docks20.rzone.de | ||||||
| NS | shades15.rzone.de | ||||||
| A | 2607:f1c0:fe:53:185:132:34:142🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | shades15.rzone.de | ||||||
| A | 185.132.34.142🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | shades15.rzone.de | ||||||
| MX | smtpin.rzone.de ⭐ | ||||||
| A | 2a01:238:20a:202:50f0::1097🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| PTR | smtpin.rzone.de | ||||||
| A | 81.169.145.97🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| PTR | smtpin.rzone.de | ||||||
| TXT | v=spf1 redirect=_spf.strato.com | ||||||
| SOA | docks20.rzone.dehostmaster@strato-rz.de 2020-05-20 #51 | ||||||
cloud
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1780935330 | ||||||
PTR for
Subdomains
homecloud.koster.cloud |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●A2a01:238:20a:202:1088::2026-03-26 → 2026-06-08 · 2 obs
● 2026-06-08 16:23:06
●A81.169.145.882026-03-26 → 2026-06-08 · 2 obs
● 2026-06-08 16:23:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cloud | ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info | 8 records |
| koster.cloud | docks20.rzone.de, shades15.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.147
NS records: docks20.rzone.de, shades15.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for koster.cloud (unsigned zone)
⏱️ Timing
Total: 695ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.169.145.88 |
| AAAA | 1 | 2a01:238:20a:202:1088:: |
| NS | 2 | docks20.rzone.de, shades15.rzone.de |
| MX | 1 | smtpin.rzone.de (pri: 5) |
| TXT | 1 | v=spf1 redirect=_spf.strato.com |
| SOA | 1 | docks20.rzone.de hostmaster.strato-rz.de |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.com, ns01.trs-dns.net...)
Analysis
Hierarchy
koster.cloud is a parent domain of homecloud.koster.cloud.
IP Addresses
koster.cloud points to two IP numbers: 81.169.145.88 and 2a01:238:20a:202:1088::.
haag-elektrotechnik.de, eltacto.de, posredniak.de plus two other host names have IP numbers in common with koster.cloud.
Name Servers
koster.cloud uses two name servers for its delegation: docks20.rzone.de and shades15.rzone.de.
The name server configuration of koster.cloud is shared with other domains, for instance naspresso.com, mylife.institute, schellen.de and two others.
koster.cloud shares at least some of its name servers with other domains, including pmnetwork.de, senkspiel.de, pxcom.de and two others.
These name servers tend to appear in conjunction with shades11.rzone.de, docks13.rzone.de, docks07.rzone.de and seven others.
The two host names docks20.rzone.de and shades15.rzone.de each have a pair of IP addresses: docks20.rzone.de has 217.160.80.147 and 2001:8d8:fe:53:5747:2a74:d:20, and shades15.rzone.de has 185.132.34.142 and 2607:f1c0:fe:53:185:132:34:142.
Mail Servers
koster.cloud uses one mail server — smtpin.rzone.de.
The mail server setup of koster.cloud matches that of other domains such as mediacube.de, mail.janamarie.net, gcf.de and two others.
smtpin.rzone.de points to two IP addresses: 81.169.145.97 and 2a01:238:20a:202:50f0::1097.