studwork.su - dns.ninja
studwork.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 193.164.17.17🇷🇺 AT-AS193.164.16.0/22 | ||||||
| PTR | h8dns.net | ||||||
| NS | h8dns.net ⭐ | ||||||
| A | 193.164.17.17🇷🇺 AT-AS193.164.16.0/22 | ||||||
| PTR | h8dns.net | ||||||
| NS | ns1.h8dns.net | ||||||
| A | 193.164.17.17🇷🇺 AT-AS193.164.16.0/22 | ||||||
| PTR | h8dns.net | ||||||
| NS | ns2.h8dns.net | ||||||
| A | 193.164.17.15🇷🇺 AT-AS193.164.16.0/22 | ||||||
| PTR | ns2.h8dns.net | ||||||
| MX | mail.studwork.su ⭐ | ||||||
| A | 193.164.17.17🇷🇺 AT-AS193.164.16.0/22 | ||||||
| PTR | h8dns.net | ||||||
| TXT | v=spf1 ip4:193.164.17.17 ip4:193.164.17.17 a mx ~all | ||||||
| SOA | h8dns.netroot@h8dns.net 2024-02-17 #61 | ||||||
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=650209858 | ||||||
Subdomains
mail.studwork.su |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXmail.studwork.su2026-05-13 → 2026-07-16 · 2 obs
● 2026-07-16 17:04:44
●A193.164.17.172026-05-13 → 2026-07-16 · 2 obs
● 2026-07-16 17:04:44
🔍 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 |
| studwork.su | ns1.h8dns.net, ns2.h8dns.net | - |
✅ Authoritative Response
Server:193.164.17.17
NS records: ns1.h8dns.net, ns2.h8dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studwork.su (unsigned zone)
⏱️ Timing
Total: 1216ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 193.164.17.17 |
| NS | 2 | ns2.h8dns.net, ns1.h8dns.net |
| MX | 2 | mail.studwork.su (pri: 10), mail.studwork.su (pri: 20) |
| TXT | 1 | v=spf1 ip4:193.164.17.17 ip4:193.164.17. |
| SOA | 1 | h8dns.net root.h8dns.net |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net...)
Analysis
Hierarchy
The domain mail.studwork.su falls under the parent studwork.su.
IP Addresses
studwork.su has exactly one IP address — 193.164.17.17.
marketberry.ru, news-vlad.ru, zovtaigi.ru plus two other host names have IP numbers in common with studwork.su.
Name Servers
studwork.su carries NS records delegating to h8dns.net, ns1.h8dns.net and ns2.h8dns.net.
At least some of studwork.su's name servers are shared with other domains, for example krimexpress.ru, women-theme.ru, gbi-odintsovo.ru and two more.
These name servers are often deployed together with the name servers ns1.h7dns.online, ns2.h7dns.online, ns1.h6dns.online and ns2.h6dns.online.
h8dns.net and ns1.h8dns.net both resolve to 193.164.17.17, while ns2.h8dns.net resolves to 193.164.17.15; all three hostnames carry exactly one IP address.
h8dns.net along with ns1.h8dns.net each resolve to 193.164.17.17 IP addresses.
Mail Servers
studwork.su uses one mail server — mail.studwork.su.
mail.studwork.su carries a single IP number, which is 193.164.17.17.