rtb-dev.de - robtex.com
rtb-dev.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.132.246.87🇩🇪 netcup-AS45.132.244.0/22 | ||||||
| PTR | rtb-dev.de | ||||||
| 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.rtb-dev.de ⭐ | ||||||
| A | 45.132.246.87🇩🇪 netcup-AS45.132.244.0/22 | ||||||
| PTR | rtb-dev.de | ||||||
| TXT | google-site-verification=0sxVeHLWoBOug6_YxN3ZCTkMlXbMSFBNWzm6Cp36eVc | ||||||
| SOA | root-dns.netcup.netdnsadmin@netcup.net 2026-04-28 #82 | ||||||
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=1777460354 | ||||||
PTR for
Subdomains
mail.rtb-dev.de |
Same first word
rtb-dev.de |
DNS History
5 records (5 active, 0 former)
●NSroot-dns.netcup.net2026-03-24 → 2026-04-29 · 2 obs
● 2026-04-29 11:14:46
●NSsecond-dns.netcup.net2026-03-24 → 2026-04-29 · 2 obs
● 2026-04-29 11:14:46
●NSthird-dns.netcup.net2026-03-24 → 2026-04-29 · 2 obs
● 2026-04-29 11:14:46
●MXmail.rtb-dev.de2026-03-24 → 2026-04-29 · 2 obs
● 2026-04-29 11:14:46
●A45.132.246.872026-03-24 → 2026-04-29 · 2 obs
● 2026-04-29 11:14:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, z.nic.de, a.nic.de | - |
| rtb-dev.de | second-dns.netcup.net, root-dns.netcup.net, third-dns.netcup.net | - |
✅ Authoritative Response
Server:46.38.225.225
NS records: second-dns.netcup.net, root-dns.netcup.net, third-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rtb-dev.de (unsigned zone)
⏱️ Timing
Total: 942ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.132.246.87 |
| NS | 3 | root-dns.netcup.net, third-dns.netcup.net... |
| MX | 1 | mail.rtb-dev.de (pri: 10) |
| TXT | 1 | google-site-verification=0sxVeHLWoBOug6_ |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
The parent of mail.rtb-dev.de is rtb-dev.de.
IP Addresses
rtb-dev.de points to a single IP address: 45.132.246.87.
Other host names, for instance mail.rtb-dev.de, share IP numbers with rtb-dev.de.
Name Servers
rtb-dev.de is delegated to three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
rtb-dev.de at least partially shares name servers with other domains, for example eversten.net, busenius.biz, marcorin.com, tripsaver.de and se-bu.com.
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
The mail.rtb-dev.de mail server handles rtb-dev.de.
mail.rtb-dev.de points to a single IP number: 45.132.246.87.