work-master.de - dns.ninja
work-master.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 88.99.137.231🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC | ||||||
| PTR | mail.gk-it.com | ||||||
| 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.work-master.de ⭐ | ||||||
| A | 88.99.137.231🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC | ||||||
| PTR | mail.gk-it.com | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2026-04-14 #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=1785668201 | ||||||
Subdomains
mail.work-master.de |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NSns1.first-ns.de2015-07-19 → 2026-08-02 · 2 obs
● 2026-08-02 11:11:26
●NSrobotns2.second-ns.de2015-07-19 → 2026-08-02 · 2 obs
● 2026-08-02 11:11:26
●NSrobotns3.second-ns.com2015-07-19 → 2026-08-02 · 2 obs
● 2026-08-02 11:11:26
●MXmail.work-master.de2015-07-19 → 2026-08-02 · 2 obs
● 2026-08-02 11:11:26
○A144.76.183.462020-03-16 → 2020-03-16 · 4 obs
● 2020-03-16 22:16:34
○ 2026-02-15 13:30:16
○ 2026-08-02 11:11:26
○A188.40.105.2132015-07-19 → 2017-03-23 · 4 obs
● 2017-03-23 07:27:52
○ 2020-03-16 22:16:34
○ 2026-08-02 11:11:26
●A88.99.137.2312026-02-15 → 2026-08-02 · 3 obs
● 2026-02-15 13:30:16
● 2026-08-02 11:11:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| work-master.de | robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de | - |
✅ Authoritative Response
Server:193.47.99.3
NS records: robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for work-master.de (unsigned zone)
⏱️ Timing
Total: 1333ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.99.137.231 |
| NS | 3 | robotns2.second-ns.de, robotns3.second-ns.com... |
| MX | 1 | mail.work-master.de (pri: 10) |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
Hierarchy
work-master.de is the parent zone for mail.work-master.de.
IP Addresses
work-master.de points to a single IP number: 88.99.137.231.
Additional host names — labor-technik.de, gk-it.com, mail2.gk-it.com and two others — share IP numbers with work-master.de.
Name Servers
work-master.de is delegated to three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
work-master.de partially shares its NS delegation with several other domains, including cogilux.com, tomgie.de, aestima.de and two others.
robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de each resolve to two IP addresses: 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.
Mail Servers
work-master.de has one mail server: mail.work-master.de.
mail.work-master.de resolves to a single IP number: 88.99.137.231.