poolclean.de - dns.ninja
poolclean.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.poolclean.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=1782582384 | ||||||
Subdomains
mail.poolclean.de |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.first-ns.de2015-08-12 → 2026-06-27 · 2 obs
● 2026-06-27 18:02:34
●NSrobotns2.second-ns.de2015-08-12 → 2026-06-27 · 2 obs
● 2026-06-27 18:02:34
●NSrobotns3.second-ns.com2015-08-12 → 2026-06-27 · 2 obs
● 2026-06-27 18:02:34
●MXmail.poolclean.de2015-08-12 → 2026-06-27 · 2 obs
● 2026-06-27 18:02:34
○A144.76.183.462015-08-12 → 2018-09-11 · 4 obs
● 2018-09-11 04:35:32
○ 2026-06-15 08:49:32
○ 2026-06-27 18:02:34
●A88.99.137.2312026-06-15 → 2026-06-27 · 3 obs
● 2026-06-15 08:49:32
● 2026-06-27 18:02:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| poolclean.de | robotns2.second-ns.de, robotns3.second-ns.com, ns1.first-ns.de | - |
✅ Authoritative Response
Server:213.133.100.103
NS records: robotns2.second-ns.de, robotns3.second-ns.com, ns1.first-ns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for poolclean.de (unsigned zone)
⏱️ Timing
Total: 727ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.99.137.231 |
| NS | 3 | ns1.first-ns.de, robotns2.second-ns.de... |
| MX | 1 | mail.poolclean.de (pri: 10) |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
Hierarchy
poolclean.de is the parent zone for mail.poolclean.de.
IP Addresses
poolclean.de has exactly one IP address — 88.99.137.231.
mail.gk-it.com, mail.poolclean.de, mail.eckardt-labor-technik.de plus two other host names have IP numbers in common with poolclean.de.
Name Servers
Three name servers are authoritative for poolclean.de: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
poolclean.de partially shares its NS delegation with several other domains, including osteopathieoberursel.de, thw23.de, asapaviationgroup.com and two others.
These name servers regularly co-occur with the name servers hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
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
poolclean.de uses one mail server — mail.poolclean.de.
There is one IP number for mail.poolclean.de: 88.99.137.231.