os-ntk.ru - robtex.com
os-ntk.ru
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4068510 | ||||||
PTR for
Subdomains
newmail.os-ntk.ru |
Same first word
os-ntk.ru |
Similar names
DNS History
17 records (12 active, 5 former)
●NSns.masterhost.ru2020-01-27 → 2026-04-14 · 2 obs
● 2026-04-14 10:12:40
●NSns1.masterhost.ru2020-01-27 → 2026-04-14 · 2 obs
● 2026-04-14 10:12:40
●NSns2.masterhost.ru2020-01-27 → 2026-04-14 · 2 obs
● 2026-04-14 10:12:40
○MXmail.os-ntk.ru2020-01-27 → 2020-01-27 · 3 obs
○ 2026-03-03 09:08:42
○ 2026-04-14 10:12:40
○MXmail2.os-ntk.ru2020-01-27 → 2020-01-27 · 3 obs
○ 2026-03-03 09:08:42
○ 2026-04-14 10:12:40
●MXnewmail.os-ntk.ru2026-03-03 → 2026-04-14 · 3 obs
● 2026-03-03 09:08:42
● 2026-04-14 10:12:40
●A2a00:15f8:a000:5:1:11:7:5a6d2020-01-27 → 2026-04-14 · 2 obs
● 2026-04-14 10:12:40
●A2a00:15f8:a000:5:1:12:7:5a6d2020-01-27 → 2026-04-14 · 2 obs
● 2026-04-14 10:12:40
●A2a00:15f8:a000:5:1:13:7:5a6d2020-01-27 → 2026-04-14 · 2 obs
● 2026-04-14 10:12:40
●A2a00:15f8:a000:5:1:14:7:5a6d2020-01-27 → 2026-04-14 · 2 obs
● 2026-04-14 10:12:40
○A90.156.201.1162020-01-27 → 2020-01-27 · 3 obs
○ 2026-03-03 09:08:42
○ 2026-04-14 10:12:40
●A90.156.201.122026-03-03 → 2026-04-14 · 3 obs
● 2026-03-03 09:08:42
● 2026-04-14 10:12:40
●A90.156.201.372020-01-27 → 2026-04-14 · 2 obs
● 2026-04-14 10:12:40
●A90.156.201.412026-03-03 → 2026-04-14 · 3 obs
● 2026-03-03 09:08:42
● 2026-04-14 10:12:40
●A90.156.201.772026-03-03 → 2026-04-14 · 3 obs
● 2026-03-03 09:08:42
● 2026-04-14 10:12:40
○A90.156.201.942020-01-27 → 2020-01-27 · 3 obs
○ 2026-03-03 09:08:42
○ 2026-04-14 10:12:40
○A90.156.201.972020-01-27 → 2020-01-27 · 3 obs
○ 2026-03-03 09:08:42
○ 2026-04-14 10:12:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | b.dns.ripn.net, f.dns.ripn.net, e.dns.ripn.net, a.dns.ripn.net... | - |
| os-ntk.ru | ns.masterhost.ru, ns1.masterhost.ru, ns2.masterhost.ru | - |
✅ Authoritative Response
Server:90.156.133.161
NS records: ns.masterhost.ru, ns1.masterhost.ru, ns2.masterhost.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for os-ntk.ru (unsigned zone)
⏱️ Timing
Total: 689ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 90.156.201.12, 90.156.201.41... |
| AAAA | 4 | 2a00:15f8:a000:5:1:12:7:5a6d, 2a00:15f8:a000:5:1:11:7:5a6d... |
| NS | 3 | ns1.masterhost.ru, ns.masterhost.ru... |
| MX | 1 | newmail.os-ntk.ru (pri: 10) |
| TXT | 1 | v=spf1 mx a ptr ip4:91.190.238.126 a:new |
| SOA | 1 | ns1.masterhost.ru hostmaster.masterhost. |
Analysis
Hierarchy
os-ntk.ru is parent of newmail.os-ntk.ru.
IP Addresses
Eight IP numbers are pointed to by os-ntk.ru: 2a00:15f8:a000:5:1:11:7:5a6d, 2a00:15f8:a000:5:1:12:7:5a6d, 2a00:15f8:a000:5:1:13:7:5a6d, 2a00:15f8:a000:5:1:14:7:5a6d, 90.156.201.12, 90.156.201.37, 90.156.201.41 and 90.156.201.77.
Other host names, for instance vyborg.pro, glonass-time.ru, www.kotly-market.ru, corny.ru and www.magroup.ru share IP numbers with os-ntk.ru.
Name Servers
os-ntk.ru is delegated to three name servers: ns1.masterhost.ru, ns2.masterhost.ru and ns.masterhost.ru.
os-ntk.ru at least partially shares its name servers with other domains, for instance mix-mart.ru, hobbyoutlet.ru, sukces.ru, kranoff.com and maximovdesign.ru.
Host names with two IP numbers:
ns1.masterhost.ru points to: 2a00:15f8:a000:11:1:1:1:53 and 90.156.137.50.
ns2.masterhost.ru points to: 2a00:15f8:a000:12:1:1:2:53 and 90.156.133.161.
ns.masterhost.ru points to: 2a00:15f8:a000:10:1:1:0:53 and 90.156.136.116.
Mail Servers
os-ntk.ru is served by a single mail server, newmail.os-ntk.ru.
newmail.os-ntk.ru points to IP number 91.190.238.126.