class.su - dns.ninja
class.su
su
| 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=650209478 | ||||||
Subdomains
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
●NSdns.fastdns24.com2015-07-14 → 2026-06-14 · 2 obs
● 2026-06-14 23:35:34
●NSdns2.fastdns24.org2015-11-28 → 2026-06-14 · 3 obs
● 2015-11-28 22:14:30
● 2026-06-14 23:35:34
●NSdns3.fastdns24.eu2015-11-28 → 2026-06-14 · 3 obs
● 2015-11-28 22:14:30
● 2026-06-14 23:35:34
●NSdns4.fastdns24.link2015-11-28 → 2026-06-14 · 3 obs
● 2015-11-28 22:14:30
● 2026-06-14 23:35:34
●NSns1.fastvps.ru2015-07-14 → 2026-06-14 · 7 obs
○ 2015-11-28 22:14:30
● 2016-09-23 21:54:28
● 2026-05-23 01:36:58
○ 2026-06-05 17:35:24
● 2026-06-11 08:59:22
● 2026-06-14 23:35:34
○NSns2.fastvps.ru2015-07-14 → 2015-07-14 · 3 obs
○ 2015-11-28 22:14:30
○ 2026-06-14 23:35:34
○NSns3.fastvps.ru2015-07-14 → 2015-07-14 · 3 obs
○ 2015-11-28 22:14:30
○ 2026-06-14 23:35:34
○NSns4.fastvps.ru2015-07-14 → 2015-07-14 · 3 obs
○ 2015-11-28 22:14:30
○ 2026-06-14 23:35:34
●MXmail.class.su2015-07-14 → 2026-06-14 · 5 obs
● 2026-05-23 01:36:58
○ 2026-06-05 17:35:24
● 2026-06-11 08:59:22
● 2026-06-14 23:35:34
○A159.253.18.622015-07-14 → 2016-09-23 · 4 obs
● 2016-09-23 21:54:28
○ 2026-02-18 06:53:36
○ 2026-06-14 23:35:34
●A185.137.233.222026-02-18 → 2026-06-14 · 6 obs
● 2026-02-18 06:53:36
● 2026-05-23 01:36:58
○ 2026-06-05 17:35:24
● 2026-06-11 08:59:22
● 2026-06-14 23:35:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | 10 records |
| class.su | dns.fastdns24.com, dns3.fastdns24.eu, dns2.fastdns24.org, dns4.fastdns24.link | - |
✅ Authoritative Response
Server:176.31.3.154
NS records: dns.fastdns24.com, dns3.fastdns24.eu, dns2.fastdns24.org, dns4.fastdns24.link
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for class.su (unsigned zone)
⏱️ Timing
Total: 1207ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.137.233.22 |
| NS | 4 | dns2.fastdns24.org, dns3.fastdns24.eu... |
| MX | 1 | mail.class.su (pri: 10) |
| SOA | 1 | ns1.fastvps.ru support.fastvps.ru |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net...)
Analysis
Hierarchy
mail.class.su and www.class.su are both subdomains of class.su.
IP Addresses
class.su resolves to one IP address: 185.137.233.22.
xn--80adijccptnqemf6q.xn--p1ai, xn--c1adjtbon.xn--p1ai, mail.geneforum.ru and two other host names share IP numbers with class.su.
Name Servers
class.su has five name servers, which are dns.fastdns24.com, dns3.fastdns24.eu, dns4.fastdns24.link and two others.
There is at least partial name server overlap between class.su and other domains — dudin3d.ru, four56club.com, megafilm45.ru and two more among them.
It is common to find these name servers alongside the name servers dns2.fastdns24.org, ns1.fastvps.ru, ns3.fastvps.ru and two others.
Hostnames that resolve to three IP addresses:
ns1.fastvps.ru resolves to three addresses: 46.105.61.158, 141.105.64.6 and 2001:41d0:1004:3000::3.
Hostnames that resolve to two IP addresses:
dns.fastdns24.com maps to two IP addresses — 176.31.3.154 and 2001:41d0:1004:3000::2.
dns3.fastdns24.eu maps to two IP addresses — 136.243.223.232 and 2a01:4f8:212:c16::4.
dns4.fastdns24.link maps to two IP addresses — 95.216.25.5 and 2a01:4f9:2a:195a::4.
dns2.fastdns24.org maps to two IP addresses — 5.188.30.150 and 2a01:5a60:5::63.
Mail Servers
Mail for class.su is handled by a single mail server, mail.class.su.
There is one IP number for mail.class.su: 185.137.233.22.