docs4docs.at - dns.ninja
docs4docs.at
| DNSSEC | ⚠️ Not signed | ||||||
| A | 136.243.107.81🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3 | ||||||
| PTR | docs4docs.at | ||||||
| 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 | ||||||
| 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 | mail.docs4docs.at ⭐ | ||||||
| A | 136.243.107.81🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3 | ||||||
| PTR | docs4docs.at | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2026-05-11 #0 | ||||||
at
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns.nic.at ⭐ | ||||||
| NS | d.ns.at | ||||||
| NS | j.ns.at | ||||||
| NS | n.ns.at | ||||||
| NS | ns1.univie.ac.at | ||||||
| NS | ns2.univie.ac.at | ||||||
| NS | r.ns.at | ||||||
| NS | u.ns.at | ||||||
| SOA | dns.nic.atdomain-admin@univie.ac.at serial=1782630002 | ||||||
PTR for
Subdomains
Same first word
docs4docs.nl |
docs4docs.at |
docs4docs.com |
DNS History
6 records (5 active, 1 former)
●NSns1.first-ns.de2015-07-16 → 2026-06-28 · 2 obs
● 2026-06-28 08:13:30
●NSrobotns2.second-ns.de2015-07-16 → 2026-06-28 · 2 obs
● 2026-06-28 08:13:30
●NSrobotns3.second-ns.com2015-07-16 → 2026-06-28 · 2 obs
● 2026-06-28 08:13:30
●MXmail.docs4docs.at2015-07-16 → 2026-06-28 · 2 obs
● 2026-06-28 08:13:30
●A136.243.107.812016-02-28 → 2026-06-28 · 3 obs
● 2016-02-28 02:53:30
● 2026-06-28 08:13:30
○A178.63.95.2062015-07-16 → 2015-11-18 · 4 obs
● 2015-11-18 02:47:12
○ 2016-02-28 02:53:30
○ 2026-06-28 08:13:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| at | d.ns.at, j.ns.at, n.ns.at, r.ns.at... | - |
| docs4docs.at | ns1.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
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 136.243.107.81 |
| NS | 3 | ns1.first-ns.de, robotns2.second-ns.de... |
| MX | 1 | mail.docs4docs.at (pri: 10) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | ns1.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.