mathschool.ru - dns.ninja
mathschool.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 95.216.245.81🇫🇮 Hetzner95.216.0.0/16 HETZNER-DC | ||||||
| PTR | host2019.na.ru | ||||||
| NS | ns1.art-navigator.ru ⭐ | ||||||
| A | 91.197.99.150🇷🇺 AS-REGRU91.197.99.0/24 | ||||||
| PTR | 91-197-99-150.cloudvps.regruhosting.ru | ||||||
| NS | ns2.art-navigator.ru | ||||||
| A | 91.197.99.150🇷🇺 AS-REGRU91.197.99.0/24 | ||||||
| PTR | 91-197-99-150.cloudvps.regruhosting.ru | ||||||
| MX | mail.art-navigator.ru ⭐ | ||||||
| A | 91.197.99.150🇷🇺 AS-REGRU91.197.99.0/24 | ||||||
| PTR | 91-197-99-150.cloudvps.regruhosting.ru | ||||||
| TXT | v=spf1 +a +mx -all | ||||||
| SOA | ns1.art-navigator.ruroot@art-navigator.ru serial=2025816018 | ||||||
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=4069493 | ||||||
Subdomains
www.mathschool.ru |
Same first word
mathschool.info |
mathschool.co.in |
mathschool.lt |
mathschool.org |
mathschool.net |
mathschool.ru |
mathschool.com |
mathschool.fr |
Similar names
DNS History
7 records (4 active, 3 former)
●NSns1.art-navigator.ru2026-03-11 → 2026-07-04 · 3 obs
● 2026-03-11 21:29:52
● 2026-07-04 15:53:34
○NSns1.creatiw.ru2015-08-22 → 2017-05-14 · 4 obs
● 2017-05-14 09:36:08
○ 2026-03-11 21:29:52
○ 2026-07-04 15:53:34
●NSns2.art-navigator.ru2026-03-11 → 2026-07-04 · 3 obs
● 2026-03-11 21:29:52
● 2026-07-04 15:53:34
○NSns2.creatiw.ru2015-08-22 → 2017-05-14 · 4 obs
● 2017-05-14 09:36:08
○ 2026-03-11 21:29:52
○ 2026-07-04 15:53:34
●MXmail.art-navigator.ru2015-08-22 → 2026-07-04 · 2 obs
● 2026-07-04 15:53:34
○A148.251.137.2092015-08-22 → 2017-05-14 · 4 obs
● 2017-05-14 09:36:08
○ 2026-03-11 21:29:52
○ 2026-07-04 15:53:34
●A95.216.245.812026-03-11 → 2026-07-04 · 3 obs
● 2026-03-11 21:29:52
● 2026-07-04 15:53:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | b.dns.ripn.net, d.dns.ripn.net, a.dns.ripn.net, f.dns.ripn.net... | - |
| mathschool.ru | ns1.art-navigator.ru, ns2.art-navigator.ru | - |
✅ Authoritative Response
Server:91.197.99.150
NS records: ns1.art-navigator.ru, ns2.art-navigator.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathschool.ru (unsigned zone)
⏱️ Timing
Total: 1761ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 95.216.245.81 |
| NS | 2 | ns2.art-navigator.ru, ns1.art-navigator.ru |
| MX | 1 | mail.art-navigator.ru (pri: 10) |
| TXT | 1 | v=spf1 +a +mx -all |
| SOA | 1 | ns1.art-navigator.ru root.art-navigator. |
Analysis
Hierarchy
www.mathschool.ru is delegated beneath mathschool.ru.
IP Addresses
mathschool.ru resolves to one IP address: 95.216.245.81.
host2019.na.ru, littletrek.ru, wolmar-winsome.com and two other host names share IP numbers with mathschool.ru.
Name Servers
DNS delegation for mathschool.ru points to two name servers: ns1.art-navigator.ru and ns2.art-navigator.ru.
mathschool.ru uses the same name servers as several other domains — among them xn--b1afab0chik.xn--p1ai, arbat-print.ru, artnavigator.ru and two more.
mathschool.ru has partial name server overlap with other domains, including keramax.ru.
Both ns1.art-navigator.ru and ns2.art-navigator.ru have a single IP address, 91.197.99.150, and share it.
Host names pointing to 91.197.99.150 IP addresses: ns1.art-navigator.ru and ns2.art-navigator.ru.
Mail Servers
Mail for mathschool.ru is handled by a single mail server, mail.art-navigator.ru.
mathschool.ru uses an identical mail server configuration to several other domains — among them kongrussia.ru, alexzar.ru, art-navigator.ru and two more.
mail.art-navigator.ru has exactly one IP number: 91.197.99.150.