school-master.ru - robtex.com
school-master.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 188.120.255.144🇷🇺 RU-JSCIOT188.120.254.0/23 | ||||||
| PTR | school-master.ru | ||||||
| NS | school-master.ru ⭐ | ||||||
| A | 188.120.255.144🇷🇺 RU-JSCIOT188.120.254.0/23 | ||||||
| PTR | school-master.ru | ||||||
| NS | ns1.firstvds.ru | ||||||
| A | 2a01:230:2:74::3🇷🇺 RU-JSCIOT2a01:230:2::/48 | ||||||
| A | 82.146.43.2🇷🇺 RU-JSCIOT82.146.40.0/21 | ||||||
| PTR | ns1.firstvds.ru | ||||||
| NS | ns2.firstvds.ru | ||||||
| A | 2a01:230:2:75::3🇷🇺 RU-JSCIOT2a01:230:2::/48 | ||||||
| A | 94.250.248.160🇷🇺 RU-JSCIOT94.250.248.0/23 | ||||||
| PTR | ns2.firstvds.ru | ||||||
| MX | mail.school-master.ru ⭐ | ||||||
| A | 188.120.255.144🇷🇺 RU-JSCIOT188.120.254.0/23 | ||||||
| PTR | school-master.ru | ||||||
| TXT | v=spf1 ip4:188.120.255.144 a mx ~all | ||||||
| SOA | school-master.ruroot@school-master.ru 2025-05-19 #69 | ||||||
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=4068147 | ||||||
PTR for
NS for
school-master.ru |
Subdomains
mail.school-master.ru |
Same first word
school-master.co.uk |
school-master.ru |
Similar names
master-school.net |
the-classroom.org |
master-school.com |
master-school.eu |
the-classroom.org.uk |
master-school.online |
e-smartschool.com |
DNS History
9 records (5 active, 4 former)
○NSns1.1gb.ru2015-08-05 → 2017-02-03 · 4 obs
● 2017-02-03 16:54:48
○ 2026-03-09 23:58:40
○ 2026-03-23 02:09:28
●NSns1.firstvds.ru2026-03-09 → 2026-03-23 · 3 obs
● 2026-03-09 23:58:40
● 2026-03-23 02:09:28
○NSns2.1gb.ru2015-08-05 → 2017-02-03 · 4 obs
● 2017-02-03 16:54:48
○ 2026-03-09 23:58:40
○ 2026-03-23 02:09:28
●NSns2.firstvds.ru2026-03-09 → 2026-03-23 · 3 obs
● 2026-03-09 23:58:40
● 2026-03-23 02:09:28
●NSschool-master.ru2026-03-09 → 2026-03-23 · 3 obs
● 2026-03-09 23:58:40
● 2026-03-23 02:09:28
○MXmail-s30.1gb.ru2015-08-05 → 2017-02-03 · 4 obs
● 2017-02-03 16:54:48
○ 2026-03-09 23:58:40
○ 2026-03-23 02:09:28
●MXmail.school-master.ru2026-03-09 → 2026-03-23 · 3 obs
● 2026-03-09 23:58:40
● 2026-03-23 02:09:28
●A188.120.255.1442026-03-09 → 2026-03-23 · 3 obs
● 2026-03-09 23:58:40
● 2026-03-23 02:09:28
○A81.176.226.1972015-08-05 → 2017-02-03 · 4 obs
● 2017-02-03 16:54:48
○ 2026-03-09 23:58:40
○ 2026-03-23 02:09:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | e.dns.ripn.net, a.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net... | - |
| school-master.ru | ns1.firstvds.ru, ns2.firstvds.ru | 2 records |
✅ Authoritative Response
Server:82.146.43.2
NS records: ns1.firstvds.ru, ns2.firstvds.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for school-master.ru (unsigned zone)
⏱️ Timing
Total: 584ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.120.255.144 |
| NS | 2 | ns1.firstvds.ru, ns2.firstvds.ru |
| MX | 2 | mail.school-master.ru (pri: 10), mail.school-master.ru (pri: 20) |
| TXT | 1 | v=spf1 ip4:188.120.255.144 a mx ~all |
| SOA | 1 | school-master.ru root.school-master.ru |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.firstvds.ru, ns1.firstvds.ru)
Analysis
Hierarchy
school-master.ru is the parent of mail.school-master.ru.
Name Server Role
For school-master.ru, school-master.ru serves as a name server for school-master.ru.
ns1.firstvds.ru and ns2.firstvds.ru commonly serve as name servers together with school-master.ru.
IP Addresses
school-master.ru points to IP number 188.120.255.144.
Other host names, for instance, mail.school-master.ru share IP numbers with school-master.ru.
Name Servers
school-master.ru is delegated to three name servers: school-master.ru, ns1.firstvds.ru and ns2.firstvds.ru.
school-master.ru shares name servers with other domains at least partially, for example rasteniya-yuga.ru, tyagach34.ru, butovo.ru, swiftguard.ru and imconf.ru.
These name servers are commonly used alongside firstvds.ru, ns1.example.com, ns2.example.com, dommainer151025.ru, ns1.fasthostvds.com and ns2.fasthostvds.com.
Host names with two IPs:
Host name ns1.firstvds.ru points to 2a01:230:2:74::3 and 82.146.43.2.
Host name ns2.firstvds.ru points to 2a01:230:2:75::3 and 94.250.248.160.
Host names with one IP:
Host name school-master.ru points to 188.120.255.144.
Mail Servers
school-master.ru is handled by a single mail server, mail.school-master.ru.
mail.school-master.ru points to a single IP: 188.120.255.144.