os-class.ru - robtex.com
os-class.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 78.24.217.209🇷🇺 RU-JSCIOT78.24.216.0/21 | ||||||
| PTR | liveb.ru | ||||||
| NS | firstvds.ru ⭐ | ||||||
| A | 37.230.118.233🇷🇺 RU-JSCIOT37.230.118.0/23 | ||||||
| PTR | firstvds.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.os-class.ru(20) | ||||||
| A | 78.24.217.209🇷🇺 RU-JSCIOT78.24.216.0/21 | ||||||
| PTR | liveb.ru | ||||||
| TXT | v=spf1 +a +mx +ip4:78.24.217.209 include:_spf.google.com ~all | ||||||
| SOA | firstvds.ruarskoru@yandex.ru 2019-04-03 #6 | ||||||
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=4068410 | ||||||
Subdomains
Same first word
os-class.ru |
DNS History
14 records (5 active, 9 former)
●NSfirstvds.ru2026-03-09 → 2026-04-06 · 3 obs
● 2026-03-09 00:16:56
● 2026-04-06 05:34:08
●NSns1.firstvds.ru2026-03-09 → 2026-04-06 · 3 obs
● 2026-03-09 00:16:56
● 2026-04-06 05:34:08
○NSns1.hostline.ru2016-04-22 → 2016-04-22 · 4 obs
● 2016-04-22 03:25:50
○ 2016-12-06 02:36:34
○ 2026-04-06 05:34:08
○NSns1.reg.ru2015-06-29 → 2017-07-04 · 7 obs
● 2016-02-01 16:17:52
○ 2016-04-22 03:25:50
● 2016-12-06 02:36:34
● 2017-07-04 04:17:40
○ 2026-03-09 00:16:56
○ 2026-04-06 05:34:08
●NSns2.firstvds.ru2026-03-09 → 2026-04-06 · 3 obs
● 2026-03-09 00:16:56
● 2026-04-06 05:34:08
○NSns2.hostline.ru2016-04-22 → 2016-04-22 · 4 obs
● 2016-04-22 03:25:50
○ 2016-12-06 02:36:34
○ 2026-04-06 05:34:08
○NSns2.reg.ru2015-06-29 → 2017-07-04 · 7 obs
● 2016-02-01 16:17:52
○ 2016-04-22 03:25:50
● 2016-12-06 02:36:34
● 2017-07-04 04:17:40
○ 2026-03-09 00:16:56
○ 2026-04-06 05:34:08
●MXmail.os-class.ru2016-04-22 → 2026-04-06 · 6 obs
● 2016-04-22 03:25:50
○ 2016-12-06 02:36:34
○ 2017-07-04 04:17:40
● 2026-03-09 00:16:56
● 2026-04-06 05:34:08
○MXmx.yandex.ru2015-06-29 → 2017-07-04 · 7 obs
● 2016-02-01 16:17:52
○ 2016-04-22 03:25:50
● 2016-12-06 02:36:34
● 2017-07-04 04:17:40
○ 2026-03-09 00:16:56
○ 2026-04-06 05:34:08
○A212.7.253.72016-12-06 → 2017-07-04 · 5 obs
● 2016-12-06 02:36:34
● 2017-07-04 04:17:40
○ 2026-03-09 00:16:56
○ 2026-04-06 05:34:08
○A62.109.14.122015-06-29 → 2015-11-06 · 4 obs
● 2015-11-06 16:00:14
○ 2016-02-01 16:17:52
○ 2026-04-06 05:34:08
●A78.24.217.2092026-03-09 → 2026-04-06 · 3 obs
● 2026-03-09 00:16:56
● 2026-04-06 05:34:08
○A83.69.230.742016-04-22 → 2016-04-22 · 4 obs
● 2016-04-22 03:25:50
○ 2016-12-06 02:36:34
○ 2026-04-06 05:34:08
○A91.204.130.92016-02-01 → 2016-02-01 · 4 obs
● 2016-02-01 16:17:52
○ 2016-04-22 03:25:50
○ 2026-04-06 05:34:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | - |
| os-class.ru | ns1.firstvds.ru, ns2.firstvds.ru | 2 records |
✅ Authoritative Response
Server:94.250.248.160
NS records: ns1.firstvds.ru, ns2.firstvds.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for os-class.ru (unsigned zone)
⏱️ Timing
Total: 712ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 78.24.217.209 |
| NS | 2 | ns2.firstvds.ru, ns1.firstvds.ru |
| MX | 2 | mail.os-class.ru (pri: 20), mail.os-class.ru (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:78.24.217.209 include |
| SOA | 1 | firstvds.ru arskoru.yandex.ru |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.firstvds.ru, ns1.firstvds.ru)
Analysis
Hierarchy
os-class.ru is a parent of www.os-class.ru and mail.os-class.ru.
IP Addresses
os-class.ru points to a single IP address: 78.24.217.209.
Other host names such as mail.liveb.ru, mail.nextip.ru, yandex.net.liveb.ru, ns1.nextip.ru and www.os-class.ru share IPs with os-class.ru.
Name Servers
os-class.ru is delegated to three name servers: firstvds.ru, ns1.firstvds.ru and ns2.firstvds.ru.
os-class.ru at least partially shares name servers with other domains, for example api-messenger.com, m-mediation.ru, igrydliadevochek.ru, apdisk.com and pravdelo.ru.
These name servers are commonly used with dommainer151025.ru and ns1.fasthostvds.com and ns2.fasthostvds.com.
Host names with two IPs:
ns1.firstvds.ru points to 2a01:230:2:74::3 and 82.146.43.2.
ns2.firstvds.ru points to 2a01:230:2:75::3 and 94.250.248.160.
Host names with one IP:
firstvds.ru points to 37.230.118.233.
Mail Servers
The mail.os-class.ru mail server handles os-class.ru.
mail.os-class.ru points to a single IP number: 78.24.217.209.