linuxcologne.de - robtex.com
linuxcologne.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a02:2479:4e:ee00::1🇩🇪 IONOS-AS2a02:2478::/29 IONOS SE | ||||||
| PTR | mx.linux-cologne.com | ||||||
| A | 85.215.44.184🇩🇪 IONOS-AS85.215.32.0/19 | ||||||
| NS | ns1.first-ns.de ⭐ | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns1.first-ns.de | ||||||
| NS | robotns2.second-ns.de | ||||||
| A | 2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | robotns2.second-ns.de | ||||||
| A | 213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | robotns2.second-ns.de | ||||||
| NS | robotns3.second-ns.com ⚠️ Not in parent delegation | ||||||
| A | 2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| A | 193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| MX | mx.linux-cologne.com ⭐ | ||||||
| A | 2a02:2479:4e:ee00::1🇩🇪 IONOS-AS2a02:2478::/29 IONOS SE | ||||||
| PTR | mx.linux-cologne.com | ||||||
| A | 85.215.44.184🇩🇪 IONOS-AS85.215.32.0/19 | ||||||
| PTR | mx.linux-cologne.com | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2026-02-14 #1 | ||||||
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=1774406262 | ||||||
Same first word
linuxcologne.de |
linuxcologne.com |
DNS History
10 records (6 active, 4 former)
●NSns1.first-ns.de2015-06-12 → 2026-03-25 · 2 obs
● 2026-03-25 03:04:20
●NSrobotns2.second-ns.de2015-06-12 → 2026-03-25 · 2 obs
● 2026-03-25 03:04:20
●NSrobotns3.second-ns.com2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 03:04:20
○MXdomu05.linux-cologne.com2026-03-25 → 2026-03-25 · 1 obs
○MXmail.blunicorn.com2015-06-12 → 2017-04-01 · 3 obs
● 2017-04-01 13:19:06
○ 2026-03-25 03:04:20
●MXmx.linux-cologne.com2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 03:04:20
○A138.201.54.1882026-03-25 → 2026-03-25 · 1 obs
○A144.76.219.1502015-06-12 → 2017-04-01 · 3 obs
● 2017-04-01 13:19:06
○ 2026-03-25 03:04:20
●A2a02:2479:4e:ee00::12026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 03:04:20
●A85.215.44.1842026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 03:04:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, z.nic.de, a.nic.de | - |
| linuxcologne.de | ns1.first-ns.de, robotns2.second-ns.de | - |
✅ Authoritative Response
Server:213.133.100.103
NS records: ns1.first-ns.de, robotns2.second-ns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for linuxcologne.de (unsigned zone)
⏱️ Timing
Total: 1049ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.215.44.184 |
| AAAA | 1 | 2a02:2479:4e:ee00::1 |
| NS | 3 | ns1.first-ns.de, robotns2.second-ns.de... |
| MX | 1 | mx.linux-cologne.com (pri: 10) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
IP Addresses
linuxcologne.de points to two IP numbers: 2a02:2479:4e:ee00::1 and 85.215.44.184.
Other host names, for instance bluefrogs.de, weinkun.de, 3amigos.de, mx.linux-cologne.com and web-cologne.net share IP numbers with linuxcologne.de.
Name Servers
linuxcologne.de is delegated to three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
linuxcologne.de at least partially shares its name servers with other domains, for instance igfs.de, creepingcold.net, address-manager.de, nacht-der-technik.de and wbg-dresden.de.
These name servers are commonly used alongside hydrogen.ns.hetzner.com and ns.cnob.de.
Host names with two IP numbers:
robotns3.second-ns.com points to: 2001:67c:192c::add:a3 and 193.47.99.3.
ns1.first-ns.de points to: 2a01:4f8:0:a101::a:1 and 213.239.242.238.
robotns2.second-ns.de points to: 2a01:4f8:0:1::5ddc:2 and 213.133.100.103.
Mail Servers
linuxcologne.de is served by a single mail server, mx.linux-cologne.com.
linuxcologne.de uses the same mail server setup as other domains, for instance 3amigos.de, web-cologne.net, linux-cologne.com and bluefrogs.de.
Hostname mx.linux-cologne.com resolves to two IPs: 2a02:2479:4e:ee00::1 and 85.215.44.184.