python-book.de - dns.ninja
python-book.de
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=1789292637 | ||||||
Subdomains
mail.python-book.de |
Same first word
Previous names
Next names
DNS History
7 records (7 active, 0 former)
●NSroot-dns.netcup.net2026-09-10 → 2026-09-13 · 2 obs
● 2026-09-13 10:06:04
●NSsecond-dns.netcup.net2026-09-10 → 2026-09-13 · 2 obs
● 2026-09-13 10:06:04
●NSthird-dns.netcup.net2026-09-10 → 2026-09-13 · 2 obs
● 2026-09-13 10:06:04
●MXmail.python-book.de2026-09-10 → 2026-09-13 · 2 obs
● 2026-09-13 10:06:04
●MXmx2e18.netcup.net2026-09-10 → 2026-09-13 · 2 obs
● 2026-09-13 10:06:04
●A2a03:4000:30:77d0::13:8932026-09-10 → 2026-09-13 · 2 obs
● 2026-09-13 10:06:04
●A91.204.46.222026-09-10 → 2026-09-13 · 2 obs
● 2026-09-13 10:06:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| python-book.de | second-dns.netcup.net, third-dns.netcup.net, root-dns.netcup.net | - |
✅ Authoritative Response
Server:46.38.225.225
NS records: second-dns.netcup.net, third-dns.netcup.net, root-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for python-book.de (unsigned zone)
⏱️ Timing
Total: 2813ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.204.46.22 |
| AAAA | 1 | 2a03:4000:30:77d0::13:893 |
| NS | 3 | second-dns.netcup.net, root-dns.netcup.net... |
| MX | 2 | mail.python-book.de (pri: 10), mx2e18.netcup.net (pri: 50) |
| TXT | 1 | v=spf1 mx a include:_spf.webhosting.syst |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
python-book.de is the parent zone for mail.python-book.de.
IP Addresses
python-book.de directs to two IP numbers, 91.204.46.22 and 2a03:4000:30:77d0::13:893
alphabetcity.de, mdpixel.de, socialreality.de plus two other host names have IP numbers in common with python-book.de.
Name Servers
DNS for python-book.de is handled by three authoritative name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
python-book.de partially shares its NS delegation with several other domains, including bestkorn.de, ecg-kachtenhausen.de, sschaffert.de and two others.
Three hostnames — root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net — each have two IP addresses: root-dns.netcup.net has 46.38.225.225 and 2a03:4000:0:1::e1e1, second-dns.netcup.net has 37.221.199.199 and 2a03:4000:2:24b::c7c7, and third-dns.netcup.net has 188.68.63.68 and 2a03:4001:0:106::3f44.
Mail Servers
python-book.de uses two mail servers, mail.python-book.de and mx2e18.netcup.net.
At least some of the mail servers used by python-book.de are shared with other domains: marcromboy.com, leun.am, deine-hausverwalter.de and two others among them.
Host names pointing to two IP addresses:
mx2e18.netcup.net has two IP addresses: 91.204.46.24 and 2a03:4000:0:392:14a7:38ff:fee4:caa8.
Host names resolving to a single IP address:
mail.python-book.de directs to 91.204.46.24.
Host names pointing to 91.204.46.24 IP addresses: mx2e18.netcup.net and mail.python-book.de.