bluber21.de - robtex.com
bluber21.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 159.195.54.122🇩🇰 netcup-AS159.195.52.0/22 | ||||||
| PTR | dragon.dertim.com | ||||||
| NS | root-dns.netcup.net ⭐ | ||||||
| A | 2a03:4000:0:1::e1e1🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH | ||||||
| PTR | root-dns.netcup.net | ||||||
| A | 46.38.225.225🇩🇪 netcup-AS46.38.225.0/24 | ||||||
| PTR | root-dns.netcup.net | ||||||
| NS | second-dns.netcup.net | ||||||
| A | 2a03:4000:2:24b::c7c7🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH | ||||||
| PTR | second-dns.netcup.net | ||||||
| A | 37.221.199.199🇩🇪 netcup-AS37.221.196.0/22 | ||||||
| PTR | second-dns.netcup.net | ||||||
| NS | third-dns.netcup.net | ||||||
| A | 2a03:4001:0:106::3f44🇩🇪 netcup-AS2a03:4001::/32 NETCUP-GMBH | ||||||
| PTR | third-dns.netcup.net | ||||||
| A | 188.68.63.68🇩🇪 netcup-AS188.68.63.0/24 NETCUP-GMBH | ||||||
| PTR | third-dns.netcup.net | ||||||
| MX | mail.bluber21.de ⭐ | ||||||
| A | 159.195.54.122🇩🇰 netcup-AS159.195.52.0/22 | ||||||
| PTR | dragon.dertim.com | ||||||
| SOA | root-dns.netcup.netdnsadmin@netcup.net 2026-01-02 #12 | ||||||
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=1774656110 | ||||||
Subdomains
Same first word
bluber21.de |
DNS History
9 records (5 active, 4 former)
○NSns1.colordns.de2017-02-03 → 2017-02-03 · 3 obs
○ 2026-02-22 03:54:58
○ 2026-03-28 00:23:40
○NSns2.colordns.eu2017-02-03 → 2017-02-03 · 3 obs
○ 2026-02-22 03:54:58
○ 2026-03-28 00:23:40
○NSns3.colordns.net2017-02-03 → 2017-02-03 · 3 obs
○ 2026-02-22 03:54:58
○ 2026-03-28 00:23:40
●NSroot-dns.netcup.net2026-02-22 → 2026-03-28 · 3 obs
● 2026-02-22 03:54:58
● 2026-03-28 00:23:40
●NSsecond-dns.netcup.net2026-02-22 → 2026-03-28 · 3 obs
● 2026-02-22 03:54:58
● 2026-03-28 00:23:40
●NSthird-dns.netcup.net2026-02-22 → 2026-03-28 · 3 obs
● 2026-02-22 03:54:58
● 2026-03-28 00:23:40
●MXmail.bluber21.de2017-02-03 → 2026-03-28 · 2 obs
● 2026-03-28 00:23:40
●A159.195.54.1222026-02-22 → 2026-03-28 · 3 obs
● 2026-02-22 03:54:58
● 2026-03-28 00:23:40
○A185.44.107.2282017-02-03 → 2017-02-03 · 3 obs
○ 2026-02-22 03:54:58
○ 2026-03-28 00:23:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| bluber21.de | root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net | - |
✅ Authoritative Response
Server:37.221.199.199
NS records: root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bluber21.de (unsigned zone)
⏱️ Timing
Total: 962ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 159.195.54.122 |
| NS | 3 | second-dns.netcup.net, root-dns.netcup.net... |
| MX | 1 | mail.bluber21.de (pri: 10) |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
bluber21.de is a parent of mail.bluber21.de and dragon.bluber21.de.
IP Addresses
bluber21.de maps to IP address 159.195.54.122.
Other host names, for instance rage-mode.de, dragon.dertim.com, mail.bluber21.de, mail.rage-mode.de and dragon.bluber21.de share IP numbers with bluber21.de.
Name Servers
bluber21.de is delegated to name servers root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
bluber21.de at least partially shares name servers with other domains such as energiesparaktion.de, vogtlandimkerei.de, fastmp3.de, bauer76.de and asalvo.de.
Host names with two IP numbers:
root-dns.netcup.net points to 2a03:4000:0:1::e1e1 and 46.38.225.225.
second-dns.netcup.net points to 2a03:4000:2:24b::c7c7 and 37.221.199.199.
third-dns.netcup.net points to 2a03:4001:0:106::3f44 and 188.68.63.68.
Mail Servers
bluber21.de is handled by a single mail server, mail.bluber21.de.
mail.bluber21.de points to one IP number: 159.195.54.122.