ntc-koeln.de - robtex.com
ntc-koeln.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 195.82.66.137🇩🇪 PIRONETNDH-AS195.82.64.0/19 DE-PIRONET-970217 | ||||||
| PTR | ap137.antwerpes.de | ||||||
| NS | dns11.netcologne.de ⭐ | ||||||
| A | 2a03:2900:3:1::2🇩🇪 AS488232a03:2900::/32 | ||||||
| PTR | ns1.routing.net | ||||||
| A | 134.0.30.178🇩🇪 AS48823134.0.24.0/21 | ||||||
| PTR | ns1.routing.net | ||||||
| NS | dns12.netcologne.de | ||||||
| A | 2001:4d8f:2::2🇩🇪 ROUTING-ANYCAST2001:4d8f::/32 | ||||||
| PTR | ns2.routing.net | ||||||
| A | 194.50.113.2🇩🇪 ROUTING-ANYCAST194.50.113.0/24 vollmarnet-anycast-route | ||||||
| PTR | ns2.routing.net | ||||||
| NS | dns13.netcologne.de | ||||||
| A | 2a03:2902:3:1::2🇩🇪 ACCELERATED-IT2a03:2902::/32 IP-Routing by firstcolo | ||||||
| PTR | ns3.routing.net | ||||||
| A | 194.126.196.2🇩🇪 ACCELERATED-IT194.126.196.0/24 IP-Routing by Accelerated IT Services GmbH | ||||||
| PTR | ns3.routing.net | ||||||
| NS | dns14.netcologne.de | ||||||
| A | 185.11.139.126🇩🇪 AS48823185.11.136.0/22 | ||||||
| SOA | dns11.netcologne.dehostmaster@routing.net 2026-06-02 #0 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1786386298 | ||||||
Subdomains
www.ntc-koeln.de |
Same first word
ntc-koeln.de |
DNS History
7 records (5 active, 2 former)
●NSdns11.netcologne.de2015-08-12 → 2026-08-10 · 2 obs
● 2026-08-10 18:58:50
●NSdns12.netcologne.de2015-08-12 → 2026-08-10 · 2 obs
● 2026-08-10 18:58:50
●NSdns13.netcologne.de2015-08-12 → 2026-08-10 · 2 obs
● 2026-08-10 18:58:50
●NSdns14.netcologne.de2015-08-12 → 2026-08-10 · 2 obs
● 2026-08-10 18:58:50
○MXmail.sfh-koeln.de2015-08-12 → 2026-02-15 · 4 obs
● 2026-02-15 15:04:52
○ 2026-03-21 09:35:30
○ 2026-08-10 18:58:50
○MXmx01.cellitinnen.net2015-08-12 → 2026-02-15 · 4 obs
● 2026-02-15 15:04:52
○ 2026-03-21 09:35:30
○ 2026-08-10 18:58:50
●A195.82.66.1372026-02-15 → 2026-08-10 · 2 obs
● 2026-08-10 18:58:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, a.nic.de, z.nic.de | - |
| ntc-koeln.de | dns13.netcologne.de, dns11.netcologne.de, dns12.netcologne.de, dns14.netcologne.de | - |
✅ Authoritative Response
Server:194.50.113.2
NS records: dns13.netcologne.de, dns11.netcologne.de, dns12.netcologne.de, dns14.netcologne.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ntc-koeln.de (unsigned zone)
⏱️ Timing
Total: 2032ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.82.66.137 |
| NS | 4 | dns12.netcologne.de, dns11.netcologne.de... |
| SOA | 1 | dns11.netcologne.de hostmaster.routing.n |
Analysis
Hierarchy
ntc-koeln.de is the parent zone for www.ntc-koeln.de.
IP Addresses
ntc-koeln.de has exactly one IP address — 195.82.66.137.
sh-serafine.de, severinskloesterchen.de, wohnanlage-sophienhof.de plus two other host names have IP numbers in common with ntc-koeln.de.
Name Servers
Four name servers handle the delegation for ntc-koeln.de: dns11.netcologne.de, dns12.netcologne.de, dns13.netcologne.de and dns14.netcologne.de.
ntc-koeln.de partially shares its NS delegation with several other domains, including philcologne.de, anlegen.de, intellinet.de and two others.
Host names pointing to two IP addresses:
dns11.netcologne.de maps to two IP addresses — 134.0.30.178 and 2a03:2900:3:1::2.
dns12.netcologne.de maps to two IP addresses — 194.50.113.2 and 2001:4d8f:2::2.
dns13.netcologne.de maps to two IP addresses — 194.126.196.2 and 2a03:2902:3:1::2.
Host names resolving to a single IP address:
dns14.netcologne.de points to the IP address 185.11.139.126.