docs4docs.at - dns.ninja

docs4docs.at

DNSSEC⚠️ Not signed
A136.243.107.81🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3
PTRdocs4docs.at
NSns1.first-ns.de
A2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns1.first-ns.de
A213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
PTRns1.first-ns.de
NSrobotns2.second-ns.de
A2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRrobotns2.second-ns.de
A213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRrobotns2.second-ns.de
NSrobotns3.second-ns.com
A2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48
PTRrobotns3.second-ns.com
A193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24
PTRrobotns3.second-ns.com
MXmail.docs4docs.at
A136.243.107.81🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3
PTRdocs4docs.at
TXTv=spf1 mx -all
SOAns1.first-ns.dedns@hetzner.com 2026-05-11 #0

at

DNSSEC🔒 Signed (DS record present)
NSdns.nic.at
NSd.ns.at
NSj.ns.at
NSn.ns.at
NSns1.univie.ac.at
NSns2.univie.ac.at
NSr.ns.at
NSu.ns.at
SOAdns.nic.atdomain-admin@univie.ac.at serial=1782630002

PTR for

Subdomains

Same first word

DNS History

6 records (5 active, 1 former)

20162017201820192020202120222023202420252026NSns1.first-ns.derobotns2.second-ns.derobotns3.second-ns.comMXmail.docs4docs.atA136.243.107.81178.63.95.206
NSns1.first-ns.de2015-07-16 → 2026-06-28 · 2 obs
● 2015-07-16 05:09:38
● 2026-06-28 08:13:30
NSrobotns2.second-ns.de2015-07-16 → 2026-06-28 · 2 obs
● 2015-07-16 05:09:38
● 2026-06-28 08:13:30
NSrobotns3.second-ns.com2015-07-16 → 2026-06-28 · 2 obs
● 2015-07-16 05:09:38
● 2026-06-28 08:13:30
MXmail.docs4docs.at2015-07-16 → 2026-06-28 · 2 obs
● 2015-07-16 05:09:38
● 2026-06-28 08:13:30
A136.243.107.812016-02-28 → 2026-06-28 · 3 obs
○ 2015-11-18 02:47:12
● 2016-02-28 02:53:30
● 2026-06-28 08:13:30
A178.63.95.2062015-07-16 → 2015-11-18 · 4 obs
● 2015-07-16 05:09:38
● 2015-11-18 02:47:12
○ 2016-02-28 02:53:30
○ 2026-06-28 08:13:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
atd.ns.at, j.ns.at, n.ns.at, r.ns.at...-
docs4docs.atns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com-

✅ Authoritative Response

Server:213.133.100.103

NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for docs4docs.at (unsigned zone)

⏱️ Timing

Total: 1343ms | Queries: -

📄 Records

TypeCountSample Data
A1136.243.107.81
NS3ns1.first-ns.de, robotns2.second-ns.de...
MX1mail.docs4docs.at (pri: 10)
TXT1v=spf1 mx -all
SOA1ns1.first-ns.de dns.hetzner.com

Analysis

Hierarchy

docs4docs.at serves as the parent of www.docs4docs.at and mail.docs4docs.at.

IP Addresses

docs4docs.at has exactly one IP address — 136.243.107.81.

rubberquads.com, mail.warten.at, www.docs4docs.at plus two other host names have IP numbers in common with docs4docs.at.

Name Servers

Three name servers are authoritative for docs4docs.at: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

The name servers of docs4docs.at overlap at least partially with those of other domains — among them agahp.org, phototrack.de, nierkamp.de and two more.

robotns3.second-ns.com resolves to 193.47.99.3 and 2001:67c:192c::add:a3. ns1.first-ns.de resolves to 213.239.242.238 and 2a01:4f8:0:a101::a:1. robotns2.second-ns.de resolves to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2. All three hostnames point to two IP numbers each.

Mail Servers

docs4docs.at uses one mail server — mail.docs4docs.at.

There is one IP number for mail.docs4docs.at: 136.243.107.81.