duc-koeln.de - robtex.com

duc-koeln.de

DNSSEC⚠️ Not signed
A2a01:4f8:1061:1344::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRwww595.your-server.de
A162.55.254.93🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC
NSns1.your-server.de ⭐
A2a01:4f8:0:1::5ddc:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns1.your-server.de
A213.133.100.102🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRns1.your-server.de
NSns.second-ns.com
A2a01:4f8:0:a101::b:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns.second-ns.com
A213.239.204.242🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
PTRns.second-ns.com
NSns3.second-ns.de
A2001:67c:192c::add:b3🇩🇪 NORIS-NETWORK2001:67c:192c::/48
PTRns3.second-ns.de
A193.47.99.4🇩🇪 NORIS-NETWORK193.47.99.0/24
PTRns3.second-ns.de
MXwww595.your-server.de ⭐
A2a01:4f8:1061:1344::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRwww595.your-server.de
A162.55.254.93🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC
PTRwww595.your-server.de
TXTv=spf1 a mx -all
SOAns1.your-server.depostmaster@your-server.de 2026-01-09 #0

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1784058848
WOT: SAFE (60/100)

Same first word

duc-koeln.de

Similar names

koeln-cdu.de
cdu-koeln.de

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSns.second-ns.comns1.your-server.dens3.second-ns.dedns11.netcologne.dedns12.netcologne.dedns13.netcologne.dedns14.netcologne.deMXwww595.your-server.dedmx1.netcologne.dedmx2.netcologne.deA162.55.254.932a01:4f8:1061:1344::22001:4dd0:100:1f00:80:0:80:181.173.194.3
○NSdns11.netcologne.de2015-08-05 → 2021-10-17 · 4 obs
● 2015-08-05 17:58:08
● 2021-10-17 03:38:22
○ 2026-03-17 17:47:38
○ 2026-07-14 20:00:16
○NSdns12.netcologne.de2015-08-05 → 2021-10-17 · 4 obs
● 2015-08-05 17:58:08
● 2021-10-17 03:38:22
○ 2026-03-17 17:47:38
○ 2026-07-14 20:00:16
○NSdns13.netcologne.de2015-08-05 → 2021-10-17 · 4 obs
● 2015-08-05 17:58:08
● 2021-10-17 03:38:22
○ 2026-03-17 17:47:38
○ 2026-07-14 20:00:16
○NSdns14.netcologne.de2015-08-05 → 2021-10-17 · 4 obs
● 2015-08-05 17:58:08
● 2021-10-17 03:38:22
○ 2026-03-17 17:47:38
○ 2026-07-14 20:00:16
●NSns.second-ns.com2026-03-17 → 2026-07-14 · 3 obs
○ 2021-10-17 03:38:22
● 2026-03-17 17:47:38
● 2026-07-14 20:00:16
●NSns1.your-server.de2026-03-17 → 2026-07-14 · 3 obs
○ 2021-10-17 03:38:22
● 2026-03-17 17:47:38
● 2026-07-14 20:00:16
●NSns3.second-ns.de2026-03-17 → 2026-07-14 · 3 obs
○ 2021-10-17 03:38:22
● 2026-03-17 17:47:38
● 2026-07-14 20:00:16
○MXdmx1.netcologne.de2015-08-05 → 2021-10-17 · 4 obs
● 2015-08-05 17:58:08
● 2021-10-17 03:38:22
○ 2026-03-17 17:47:38
○ 2026-07-14 20:00:16
○MXdmx2.netcologne.de2015-08-05 → 2021-10-17 · 4 obs
● 2015-08-05 17:58:08
● 2021-10-17 03:38:22
○ 2026-03-17 17:47:38
○ 2026-07-14 20:00:16
●MXwww595.your-server.de2026-03-17 → 2026-07-14 · 3 obs
○ 2021-10-17 03:38:22
● 2026-03-17 17:47:38
● 2026-07-14 20:00:16
●A162.55.254.932026-03-17 → 2026-07-14 · 3 obs
○ 2021-10-17 03:38:22
● 2026-03-17 17:47:38
● 2026-07-14 20:00:16
○A2001:4dd0:100:1f00:80:0:80:12015-08-05 → 2021-10-17 · 4 obs
● 2015-08-05 17:58:08
● 2021-10-17 03:38:22
○ 2026-03-17 17:47:38
○ 2026-07-14 20:00:16
●A2a01:4f8:1061:1344::22026-03-17 → 2026-07-14 · 3 obs
○ 2021-10-17 03:38:22
● 2026-03-17 17:47:38
● 2026-07-14 20:00:16
○A81.173.194.32015-08-05 → 2021-10-17 · 4 obs
● 2015-08-05 17:58:08
● 2021-10-17 03:38:22
○ 2026-03-17 17:47:38
○ 2026-07-14 20:00:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
duc-koeln.dens.second-ns.com, ns3.second-ns.de, ns1.your-server.de4 records

✅ Authoritative Response

Server:193.47.99.4

NS records: ns.second-ns.com, ns3.second-ns.de, ns1.your-server.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duc-koeln.de (unsigned zone)

⏱️ Timing

Total: 768ms | Queries: -

📄 Records

TypeCountSample Data
A1162.55.254.93
AAAA12a01:4f8:1061:1344::2
NS3ns3.second-ns.de, ns.second-ns.com...
MX1www595.your-server.de (pri: 10)
TXT1v=spf1 a mx -all
SOA1ns1.your-server.de postmaster.your-serve

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns3.second-ns.de, ns1.your-server.de, ns3.second-ns.de...)

Analysis

IP Addresses

duc-koeln.de has two IP addresses: 162.55.254.93 and 2a01:4f8:1061:1344::2

www.blickfeld-wuppertal.de, atforce.de, nkeller.de and two other host names share IP numbers with duc-koeln.de.

Name Servers

DNS for duc-koeln.de is handled by three authoritative name servers: ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.

There is at least partial name server overlap between duc-koeln.de and other domains — burobnb.com, vier-schmidts.de, flyinghitchhiker.com and two more among them.

Three hostnames — ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de — each have two IP addresses: ns.second-ns.com has 213.239.204.242 and 2a01:4f8:0:a101::b:1, ns3.second-ns.de has 193.47.99.4 and 2001:67c:192c::add:b3, and ns1.your-server.de has 213.133.100.102 and 2a01:4f8:0:1::5ddc:1.

Mail Servers

Mail for duc-koeln.de is handled by a single mail server, www595.your-server.de.

duc-koeln.de uses an identical mail server configuration to several other domains — among them www595.your-server.de, glamorhair.co.za, fleischerei-gugerell.at and two more.

www595.your-server.de carries two IP numbers: 162.55.254.93 and 2a01:4f8:1061:1344::2.