dht-tech.vn - robtex.com
dht-tech.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.35.65.176🇻🇳 FPT-AS-AP103.35.65.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| NS | ns1.zonedns.vn ⭐ | ||||||
| A | 2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix | ||||||
| A | 64.176.84.220🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix | ||||||
| PTR | ns1.zonedns.vn | ||||||
| NS | ns2.zonedns.vn | ||||||
| A | 2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix | ||||||
| A | 103.176.178.51🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN | ||||||
| NS | ns3.zonedns.vn | ||||||
| A | 2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN | ||||||
| A | 103.28.36.30🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| NS | ns4.zonedns.vn | ||||||
| A | 2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN | ||||||
| A | 103.28.39.159🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| MX | mail.dht-tech.vn ⭐ | ||||||
| A | 103.35.65.176🇻🇳 FPT-AS-AP103.35.65.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| TXT | v=spf1 a mx ip4:103.35.65.176 ~all | ||||||
| SOA | ns1.zonedns.vnroot@dht-tech.vn 2026-03-10 #2 | ||||||
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=2030771107 | ||||||
Subdomains
workplace.dht-tech.vn |
mail.dht-tech.vn |
Same first word
dht-tech.vn |
DNS History
6 records (6 active, 0 former)
●NSns1.zonedns.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 05:13:36
●NSns2.zonedns.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 05:13:36
●NSns3.zonedns.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 05:13:36
●NSns4.zonedns.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 05:13:36
●MXmail.dht-tech.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 05:13:36
●A103.35.65.1762026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 05:13:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| dht-tech.vn | ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn | - |
✅ Authoritative Response
Server:64.176.84.220
NS records: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dht-tech.vn (unsigned zone)
⏱️ Timing
Total: 2382ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.35.65.176 |
| NS | 4 | ns1.zonedns.vn, ns3.zonedns.vn... |
| MX | 1 | mail.dht-tech.vn (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:103.35.65.176 ~all |
| SOA | 1 | ns1.zonedns.vn root.dht-tech.vn |
Analysis
Hierarchy
dht-tech.vn is a parent of workplace.dht-tech.vn and mail.dht-tech.vn.
IP Addresses
dht-tech.vn points to a single IP number: 103.35.65.176.
Other host names such as cuocthi.vkssonla.gov.vn and mail.dht-tech.vn share IP numbers with dht-tech.vn.
Name Servers
dht-tech.vn is delegated to four name servers: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.
dht-tech.vn at least partially shares name servers with other domains, for instance noithatlongthanh.vn, thanhlapdoanhnghiep.org, phuluong.com.vn, thongdiepcuocsong.net and amicoach.edu.vn.
These name servers are commonly used with ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.
Hosts with two IPs:
ns1.zonedns.vn points to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 64.176.84.220
ns2.zonedns.vn points to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 103.176.178.51
ns3.zonedns.vn points to 2001:df1:3200::15 and 103.28.36.30
ns4.zonedns.vn points to 2001:df1:3200::15 and 103.28.39.159
Hosts pointing to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33: ns1.zonedns.vn and ns2.zonedns.vn
Hosts pointing to 2001:df1:3200::15: ns3.zonedns.vn and ns4.zonedns.vn
Mail Servers
dht-tech.vn is handled by a single mail server, mail.dht-tech.vn.
mail.dht-tech.vn points to a single IP: 103.35.65.176.