kdoor.vn - robtex.com
kdoor.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 36.50.27.18EZTECH-VN36.50.27.0/24 BNIX-VN | ||||||
| NS | ns1.dotvndns.vn ⭐ | ||||||
| A | 2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| A | 112.213.89.3🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| NS | ns2.dotvndns.vn | ||||||
| A | 2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns2.dotvndns.vn | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| NS | ns3.dotvndns.vn | ||||||
| A | 112.213.89.22🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns8922.dotvndns.vn | ||||||
| NS | nsbak.dotvndns.com | ||||||
| A | 2406:9c80::9000:302🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | nsbak.dotvndns.com | ||||||
| A | 112.213.89.22🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns8922.dotvndns.vn | ||||||
| MX | mail.kdoor.vn ⭐ | ||||||
| A | 36.50.27.18EZTECH-VN36.50.27.0/24 BNIX-VN | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| SOA | ns1.dotvndns.vnhostmaster@kdoor.vn 2025-10-15 #4 | ||||||
vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn | ||||||
| NS | b.dns-servers.vn | ||||||
| NS | c.dns-servers.vn | ||||||
| NS | d.dns-servers.vn | ||||||
| NS | e.dns-servers.vn | ||||||
| NS | f.dns-servers.vn | ||||||
| NS | g.dns-servers.vn | ||||||
| NS | h.dns-servers.vn | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2030756257 | ||||||
Previously MX for
kdoor.vn |
Subdomains
mail.kdoor.vn |
Same first word
kdoor.vn |
Similar names
DNS History
11 records (6 active, 5 former)
●NSns1.dotvndns.vn2026-05-06 → 2026-05-10 · 3 obs
● 2026-05-06 08:10:40
● 2026-05-10 23:41:52
○NSns1.zonedns.vn2019-02-16 → 2019-02-16 · 3 obs
○ 2026-05-06 08:10:40
○ 2026-05-10 23:41:52
●NSns2.dotvndns.vn2026-05-06 → 2026-05-10 · 3 obs
● 2026-05-06 08:10:40
● 2026-05-10 23:41:52
○NSns2.zonedns.vn2019-02-16 → 2019-02-16 · 3 obs
○ 2026-05-06 08:10:40
○ 2026-05-10 23:41:52
●NSns3.dotvndns.vn2026-05-06 → 2026-05-10 · 3 obs
● 2026-05-06 08:10:40
● 2026-05-10 23:41:52
○NSns3.zonedns.vn2019-02-16 → 2019-02-16 · 3 obs
○ 2026-05-06 08:10:40
○ 2026-05-10 23:41:52
●NSnsbak.dotvndns.com2026-05-06 → 2026-05-10 · 3 obs
● 2026-05-06 08:10:40
● 2026-05-10 23:41:52
○MXkdoor.vn2019-02-16 → 2019-02-16 · 3 obs
○ 2026-05-06 08:10:40
○ 2026-05-10 23:41:52
●MXmail.kdoor.vn2026-05-06 → 2026-05-10 · 3 obs
● 2026-05-06 08:10:40
● 2026-05-10 23:41:52
○A103.74.118.1472019-02-16 → 2019-02-16 · 3 obs
○ 2026-05-06 08:10:40
○ 2026-05-10 23:41:52
●A36.50.27.182026-05-06 → 2026-05-10 · 3 obs
● 2026-05-06 08:10:40
● 2026-05-10 23:41:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| kdoor.vn | ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn, nsbak.dotvndns.com | 4 records |
✅ Authoritative Response
Server:222.255.121.247
NS records: ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn, nsbak.dotvndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kdoor.vn (unsigned zone)
⏱️ Timing
Total: 2034ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 36.50.27.18 |
| NS | 4 | ns3.dotvndns.vn, nsbak.dotvndns.com... |
| MX | 1 | mail.kdoor.vn (pri: 10) |
| TXT | 1 | v=spf1 a mx ~all |
| SOA | 1 | ns1.dotvndns.vn hostmaster.kdoor.vn |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.dotvndns.vn, ns1.dotvndns.vn, ns2.dotvndns.vn...)
Analysis
Hierarchy
kdoor.vn is parent of mail.kdoor.vn.
IP Addresses
kdoor.vn points to a single IP: 36.50.27.18.
Other host names, for instance saigonford.com.vn, cilaf.vn, mail.kdoor.vn, www.hanoiford.com.vn and mitsubishihochiminh.com.vn share IP numbers with kdoor.vn.
Name Servers
kdoor.vn is delegated to four name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns3.dotvndns.vn.
kdoor.vn at least partially shares its name servers with other domains, for instance mikotech.com.vn, noithatbinhduong.vn, satvloanhkhoa.com, duoclieutrunguong28.com and doanhnghiepcuocsong.vn.
These name servers are commonly used with ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net, ns4.dotvndns.vn, nsbak.dotvndns.vn, ns1.sapo.vn and ns2.sapo.vn.
Host names with two IP numbers:
The host name nsbak.dotvndns.com points to: 2406:9c80::9000:302 and 112.213.89.22.
The host name ns1.dotvndns.vn points to: 2406:9c80::66 and 112.213.89.3.
The host name ns2.dotvndns.vn points to: 2406:9c80::9000:111 and 222.255.121.247.
Host names with one IP number:
The host name ns3.dotvndns.vn points to: 112.213.89.22.
Host names that point to 112.213.89.22: nsbak.dotvndns.com and ns3.dotvndns.vn.
Mail Servers
kdoor.vn is served by a single mail server, mail.kdoor.vn.
mail.kdoor.vn points to IP number 36.50.27.18.