linux.koeln - robtex.com
linux.koeln
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:239:314:9400::35🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 212.132.101.35🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de | ||||||
| NS | ns1.rieker.cloud ⭐ | ||||||
| A | 2a01:239:314:9400::35🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 212.132.101.35🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de | ||||||
| PTR | srv01.rieker.cloud | ||||||
| NS | ns2.rieker.cloud | ||||||
| A | 2a01:239:314:9400::36🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 212.132.101.36🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de | ||||||
| PTR | srv01.rieker.cloud | ||||||
| MX | mail.linux.koeln ⭐ | ||||||
| A | 2a01:239:314:9400::35🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 212.132.101.35🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de | ||||||
| PTR | srv01.rieker.cloud | ||||||
| TXT | v=spf1 +a +mx +a:srv01.rieker.cloud -all | ||||||
| SOA | ns1.rieker.cloudeugen@rieker.cloud 2026-07-23 #2 | ||||||
koeln
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.ryce-rsp.com ⭐ | ||||||
| NS | dns.ryce-rsp.com | ||||||
| NS | ns1.dns.business | ||||||
| SOA | ns1.ryce-rsp.comsupport@ryce-rsp.com 2025-08-07 #85 | ||||||
Subdomains
mail.linux.koeln |
Same first word
Similar names
DNS History
13 records (5 active, 8 former)
○NSns1.netzpanik.de2017-01-07 → 2017-01-07 · 3 obs
○ 2018-01-16 11:31:28
○ 2026-08-11 09:50:24
●NSns1.rieker.cloud2026-02-18 → 2026-08-11 · 3 obs
● 2026-02-18 18:13:30
● 2026-08-11 09:50:24
○NSns1.rieker.engineering2018-01-16 → 2018-01-16 · 4 obs
● 2018-01-16 11:31:28
○ 2026-02-18 18:13:30
○ 2026-08-11 09:50:24
○NSns2.netzpanik.de2017-01-07 → 2017-01-07 · 3 obs
○ 2018-01-16 11:31:28
○ 2026-08-11 09:50:24
●NSns2.rieker.cloud2026-02-18 → 2026-08-11 · 3 obs
● 2026-02-18 18:13:30
● 2026-08-11 09:50:24
○NSns2.rieker.engineering2018-01-16 → 2018-01-16 · 4 obs
● 2018-01-16 11:31:28
○ 2026-02-18 18:13:30
○ 2026-08-11 09:50:24
●MXmail.linux.koeln2017-01-07 → 2026-08-11 · 4 obs
○ 2018-01-16 11:31:28
● 2026-02-18 18:13:30
● 2026-08-11 09:50:24
○MXsrv.rieker.engineering2018-01-16 → 2018-01-16 · 4 obs
● 2018-01-16 11:31:28
○ 2026-02-18 18:13:30
○ 2026-08-11 09:50:24
○A176.9.108.1802018-01-16 → 2018-01-16 · 4 obs
● 2018-01-16 11:31:28
○ 2026-02-18 18:13:30
○ 2026-08-11 09:50:24
●A212.132.101.352026-02-18 → 2026-08-11 · 3 obs
● 2026-02-18 18:13:30
● 2026-08-11 09:50:24
○A2a01:238:43a9:5200:52ea:c9e4:9923:f6aa2017-01-07 → 2017-01-07 · 3 obs
○ 2018-01-16 11:31:28
○ 2026-08-11 09:50:24
●A2a01:239:314:9400::352026-02-18 → 2026-08-11 · 3 obs
● 2026-02-18 18:13:30
● 2026-08-11 09:50:24
○A85.214.86.1722017-01-07 → 2017-01-07 · 3 obs
○ 2018-01-16 11:31:28
○ 2026-08-11 09:50:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| koeln | dns.ryce-rsp.com, ns1.dns.business, ns1.ryce-rsp.com | 6 records |
| linux.koeln | ns1.rieker.cloud, ns2.rieker.cloud | - |
✅ Authoritative Response
Server:212.132.101.35
NS records: ns1.rieker.cloud, ns2.rieker.cloud
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for linux.koeln (unsigned zone)
⏱️ Timing
Total: 2758ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 212.132.101.35 |
| AAAA | 1 | 2a01:239:314:9400::35 |
| NS | 2 | ns2.rieker.cloud, ns1.rieker.cloud |
| MX | 1 | mail.linux.koeln (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:srv01.rieker.cloud -all |
| SOA | 1 | ns1.rieker.cloud eugen.rieker.cloud |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (dns.ryce-rsp.com, dns.ryce-rsp.com, ns1.dns.business...)
Analysis
Hierarchy
The domain mail.linux.koeln falls under the parent linux.koeln.
IP Addresses
linux.koeln points to the IP addresses 212.132.101.35 and 2a01:239:314:9400::35
Among the host names that share IP numbers with linux.koeln are netzpanik.de, srv01.rieker.cloud, isp-plus.de and two others.
Name Servers
Two name servers handle the delegation for linux.koeln: ns1.rieker.cloud and ns2.rieker.cloud.
linux.koeln has the same name server delegation as a number of other domains, such as ispplus.de, service-server.net, germanbyte.com and two more.
ns1.rieker.cloud and ns2.rieker.cloud both carry two IP addresses. The A records for ns1.rieker.cloud are 212.132.101.35 and 2a01:239:314:9400::35; the A records for ns2.rieker.cloud are 212.132.101.36 and 2a01:239:314:9400::36.
Mail Servers
linux.koeln routes its mail through a single mail server, mail.linux.koeln.
mail.linux.koeln directs to two IP numbers, 212.132.101.35 and 2a01:239:314:9400::35.