blue-post.de - robtex.com
blue-post.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 135.181.118.159🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC | ||||||
| PTR | antavi.de | ||||||
| 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.blue-post.de ⭐ | ||||||
| A | 135.181.118.159🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC | ||||||
| PTR | antavi.de | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2026-02-16 #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=1775973021 | ||||||
Subdomains
mail.blue-post.de |
Same first word
blue-post.com |
blue-post.de |
DNS History
7 records (5 active, 2 former)
●NSns1.first-ns.de2015-08-04 → 2026-04-12 · 2 obs
● 2026-04-12 05:51:38
●NSrobotns2.second-ns.de2015-08-04 → 2026-04-12 · 2 obs
● 2026-04-12 05:51:38
●NSrobotns3.second-ns.com2015-08-04 → 2026-04-12 · 2 obs
● 2026-04-12 05:51:38
●MXmail.blue-post.de2015-08-04 → 2026-04-12 · 2 obs
● 2026-04-12 05:51:38
●A135.181.118.1592026-02-19 → 2026-04-12 · 3 obs
● 2026-02-19 05:58:30
● 2026-04-12 05:51:38
○A136.243.8.2052015-08-04 → 2017-02-14 · 4 obs
● 2017-02-14 03:35:46
○ 2020-01-31 17:37:30
○ 2026-04-12 05:51:38
○A78.46.94.2182020-01-31 → 2020-01-31 · 4 obs
● 2020-01-31 17:37:30
○ 2026-02-19 05:58:30
○ 2026-04-12 05:51:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| blue-post.de | robotns2.second-ns.de, ns1.first-ns.de, robotns3.second-ns.com | - |
✅ Authoritative Response
Server:193.47.99.3
NS records: robotns2.second-ns.de, ns1.first-ns.de, robotns3.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for blue-post.de (unsigned zone)
⏱️ Timing
Total: 1220ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 135.181.118.159 |
| NS | 3 | ns1.first-ns.de, robotns2.second-ns.de... |
| MX | 1 | mail.blue-post.de (pri: 10) |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
Hierarchy
blue-post.de is the parent of mail.blue-post.de.
IP Addresses
blue-post.de points to a single IP number: 135.181.118.159.
other host names for instance mail.blue-post.de, mail.planerd.de, mail.kunstdrucke.com, kraeuterkenner.de and planerd.de share IP numbers with blue-post.de.
Name Servers
blue-post.de is delegated to three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
blue-post.de at least partially shares name servers with other domains, for instance koleo.net, system-machine.de, dyfrigjones.co.uk, dastardio.de and valouch.com.
These name servers are commonly used with hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
Host names with two IP numbers:
Host robotns3.second-ns.com points to 2001:67c:192c::add:a3 and 193.47.99.3.
Host ns1.first-ns.de points to 2a01:4f8:0:a101::a:1 and 213.239.242.238.
Host robotns2.second-ns.de points to 2a01:4f8:0:1::5ddc:2 and 213.133.100.103.
Mail Servers
blue-post.de is handled by a single mail server, mail.blue-post.de.
Host name mail.blue-post.de points to IP address 135.181.118.159.