python-courses.com - dns.ninja
python-courses.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1787528206 | ||||||
Same first word
python-courses.com |
Previous names
Next names
DNS History
8 records (7 active, 1 former)
●NSnsa6.schlundtech.de2015-06-23 → 2026-08-24 · 2 obs
● 2026-08-24 00:03:36
●NSnsb6.schlundtech.de2015-06-23 → 2026-08-24 · 2 obs
● 2026-08-24 00:03:36
●NSnsc6.schlundtech.de2015-06-23 → 2026-08-24 · 2 obs
● 2026-08-24 00:03:36
●NSnsd6.schlundtech.de2015-06-23 → 2026-08-24 · 2 obs
● 2026-08-24 00:03:36
●MXwww.tux4all.net2026-08-20 → 2026-08-24 · 2 obs
● 2026-08-24 00:03:36
●A138.201.17.1152026-08-20 → 2026-08-24 · 3 obs
● 2026-08-20 04:47:00
● 2026-08-24 00:03:36
○A188.40.45.222015-06-23 → 2016-12-25 · 4 obs
● 2016-12-25 14:10:20
○ 2026-08-20 04:47:00
○ 2026-08-24 00:03:36
●A2a01:4f8:171:286f::42026-08-20 → 2026-08-24 · 3 obs
● 2026-08-20 04:47:00
● 2026-08-24 00:03:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net... | - |
| python-courses.com | nsa6.schlundtech.de, nsb6.schlundtech.de, nsc6.schlundtech.de, nsd6.schlundtech.de | - |
✅ Authoritative Response
Server:185.132.34.227
NS records: nsa6.schlundtech.de, nsb6.schlundtech.de, nsc6.schlundtech.de, nsd6.schlundtech.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for python-courses.com (unsigned zone)
⏱️ Timing
Total: 617ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 138.201.17.115 |
| AAAA | 1 | 2a01:4f8:171:286f::4 |
| NS | 4 | nsa6.schlundtech.de, nsd6.schlundtech.de... |
| MX | 1 | www.tux4all.net (pri: 0) |
| SOA | 1 | nsa6.schlundtech.de direct.bklein.de |
Analysis
IP Addresses
python-courses.com has two IP addresses: 138.201.17.115 and 2a01:4f8:171:286f::4
www.galois-group.net, linux-schulung.org, bewerbung-hilfe.net plus two other host names have IP numbers in common with python-courses.com.
Name Servers
Four name servers handle the delegation for python-courses.com: nsa6.schlundtech.de, nsb6.schlundtech.de, nsc6.schlundtech.de and nsd6.schlundtech.de.
The name servers of python-courses.com overlap at least partially with those of other domains — among them weltsprachen.de, selections.de, eurokrallen.de and two more.
Each of the four hosts nsa6.schlundtech.de, nsb6.schlundtech.de, nsc6.schlundtech.de and nsd6.schlundtech.de has two IP addresses. nsa6.schlundtech.de points to 185.132.34.227 and 2607:f1c0:fe:53:185:132:34:227. nsb6.schlundtech.de points to 185.132.35.227 and 2607:f1c0:fe:53:185:132:35:227. nsc6.schlundtech.de points to 217.160.80.227 and 2001:8d8:fe:53:217:160:80:227. nsd6.schlundtech.de points to 217.160.81.227 and 2001:8d8:fe:53:217:160:81:227.
Mail Servers
python-courses.com uses one mail server — www.tux4all.net.
The mail server setup of python-courses.com matches that of other domains such as bewerbung-hilfe.net, aikikai-zuerich.ch, lake-linux-schule.de and two others.
www.tux4all.net resolves to two IP numbers — 138.201.17.115 and 2a01:4f8:171:286f::4.