4duk.su - robtex.com
4duk.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 89.250.2.40🇷🇺 MVMTECH-AS89.250.0.0/20 LLC MVM Technology Autonomous System | ||||||
| PTR | static-broadband-89-250-2-40.tushino.com | ||||||
| NS | ns1.4duk.su ⭐ | ||||||
| A | 91.228.239.132🇷🇺 MIXTELECOM-AS91.228.238.0/23 route for Rackstore | ||||||
| NS | ns.4duk.su | ||||||
| A | 89.250.12.19🇷🇺 MVMTECH-AS89.250.0.0/20 LLC MVM Technology Autonomous System | ||||||
| PTR | mail.ilona.su | ||||||
| MX | smtp.4duk.su ⭐ | ||||||
| A | 91.228.239.132🇷🇺 MIXTELECOM-AS91.228.238.0/23 route for Rackstore | ||||||
| TXT | _globalsign-domain-verification=MWxwkxERvIOMr_dxOs2oe7ak9NBOmHXkEQKFylFhPU | ||||||
| TXT | v=spf1 fk-verify=79c37f0112c41b006fd91d9933e10998 ip4:89.250.12.19 include:_s... | ||||||
| SOA | ns.4duk.sualex@ns.4duk.su 2015-08-18 #40 | ||||||
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=650208520 | ||||||
Subdomains
ns.4duk.su |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns.4duk.su2026-03-08 → 2026-03-27 · 2 obs
● 2026-03-08 22:38:04
● 2026-03-27 12:41:10
● 2026-03-27 12:41:10
●NSns1.4duk.su2026-03-08 → 2026-03-27 · 2 obs
● 2026-03-08 22:38:04
● 2026-03-27 12:41:10
● 2026-03-27 12:41:10
●MXsmtp.4duk.su2026-03-08 → 2026-03-27 · 2 obs
● 2026-03-08 22:38:04
● 2026-03-27 12:41:10
● 2026-03-27 12:41:10
●A89.250.2.402026-03-08 → 2026-03-27 · 2 obs
● 2026-03-08 22:38:04
● 2026-03-27 12:41:10
● 2026-03-27 12:41:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, b.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net... | - |
| 4duk.su | ns.4duk.su, ns1.4duk.su | 2 records |
✅ Authoritative Response
Server:89.250.12.19
NS records: ns.4duk.su, ns1.4duk.su
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4duk.su (unsigned zone)
⏱️ Timing
Total: 774ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 89.250.2.40 |
| NS | 2 | ns.4duk.su, ns1.4duk.su |
| MX | 1 | smtp.4duk.su (pri: 10) |
| TXT | 2 | _globalsign-domain-verification=MWxwkxER, v=spf1 fk-verify=79c37f0112c41b006fd91d9 |
| SOA | 1 | ns.4duk.su alex.ns.4duk.su |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns.4duk.su, ns1.4duk.su)
Analysis
Hierarchy
4duk.su is the parent of ns.4duk.su.
IP Addresses
4duk.su points to IP number 89.250.2.40.
Name Servers
4duk.su is delegated to two name servers: ns1.4duk.su and ns.4duk.su.
Host names with one IP number:
ns1.4duk.su points to: 91.228.239.132.
ns.4duk.su points to: 89.250.12.19.
Mail Servers
4duk.su is handled by a single mail server, smtp.4duk.su.
smtp.4duk.su points to a single IP: 91.228.239.132.