python-courses.ru - dns.ninja
python-courses.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.215.4.27🇷🇺 DDOS-GUARD185.215.4.0/24 Tilda Publishing LLC | ||||||
| NS | ns1.selectel.ru ⭐ | ||||||
| A | 2a00:ab00:800::53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| PTR | ns1.selectel.org | ||||||
| A | 188.68.203.10🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object | ||||||
| PTR | ns1.selectel.ru | ||||||
| NS | ns2.selectel.ru | ||||||
| A | 2a00:ab00:801::53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| PTR | ns2.selectel.org | ||||||
| A | 77.223.114.5🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object | ||||||
| PTR | ns2.selectel.ru | ||||||
| NS | ns3.selectel.ru | ||||||
| A | 2a00:ab00:802::53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| PTR | ns3.selectel.org | ||||||
| A | 188.68.203.5🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object | ||||||
| PTR | ns3.selectel.ru | ||||||
| NS | ns4.selectel.ru | ||||||
| A | 2a00:ab00:803::53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| PTR | ns4.selectel.org | ||||||
| A | 77.223.114.10🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object | ||||||
| PTR | ns4.selectel.ru | ||||||
| SOA | ns1.selectel.rusupport@selectel.ru 2022-06-27 #34 | ||||||
ru
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | c.tld-servers.ru | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4070394 | ||||||
Same first word
python-courses.com |
python-courses.ru |
python-courses.eu |
Similar names
Previous names
Next names
DNS History
5 records (5 active, 0 former)
●NSns1.selectel.ru2026-09-08 → 2026-09-17 · 2 obs
● 2026-09-17 10:39:28
●NSns2.selectel.ru2026-09-08 → 2026-09-17 · 2 obs
● 2026-09-17 10:39:28
●NSns3.selectel.ru2026-09-08 → 2026-09-17 · 2 obs
● 2026-09-17 10:39:28
●NSns4.selectel.ru2026-09-08 → 2026-09-17 · 2 obs
● 2026-09-17 10:39:28
●A185.215.4.272026-09-08 → 2026-09-17 · 2 obs
● 2026-09-17 10:39:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net... | - |
| python-courses.ru | ns1.selectel.ru, ns2.selectel.ru, ns3.selectel.ru, ns4.selectel.ru | 4 records |
✅ Authoritative Response
Server:188.68.203.5
NS records: ns1.selectel.ru, ns2.selectel.ru, ns3.selectel.ru, ns4.selectel.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for python-courses.ru (unsigned zone)
⏱️ Timing
Total: 1521ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.215.4.27 |
| NS | 4 | ns3.selectel.ru, ns4.selectel.ru... |
| SOA | 1 | ns1.selectel.ru support.selectel.ru |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.selectel.ru, ns2.selectel.ru, ns3.selectel.ru...)
Analysis
IP Addresses
python-courses.ru points to a single IP number: 185.215.4.27.
Additional host names — zurvkaife.ru, sahapov.pro, spectr360.ru and two others — share IP numbers with python-courses.ru.
Name Servers
python-courses.ru has four authoritative name servers: ns1.selectel.ru, ns2.selectel.ru, ns3.selectel.ru and ns4.selectel.ru.
There is at least partial name server overlap between python-courses.ru and other domains — invisible.coffee, ginnotaki-chelny.ru, dumareft.ru and two more among them.
These name servers tend to appear in combination with the name servers ns1.selectel.org, ns2.selectel.org, ns3.selectel.org and ns4.selectel.org.
All four hostnames — ns1.selectel.ru, ns2.selectel.ru, ns3.selectel.ru and ns4.selectel.ru — resolve to two IP numbers apiece: ns1.selectel.ru to 188.68.203.10 and 2a00:ab00:800::53; ns2.selectel.ru to 77.223.114.5 and 2a00:ab00:801::53; ns3.selectel.ru to 188.68.203.5 and 2a00:ab00:802::53; ns4.selectel.ru to 77.223.114.10 and 2a00:ab00:803::53.