visaduhoc.net - robtex.com
visaduhoc.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.28.36.118🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| 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 ⚠️ Not in zone NS records | ||||||
| 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 | visaduhoc.net ⭐ | ||||||
| A | 103.28.36.118🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| SOA | ns1.zonedns.vnroot@visaduhoc.net 2020-11-10 #2 | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1777077561 | ||||||
MX for
visaduhoc.net |
Same first word
visaduhoc.net |
DNS History
10 records (6 active, 4 former)
○NSnhanhoa.earth.orderbox-dns.com2015-06-15 → 2017-10-16 · 4 obs
● 2017-10-16 16:54:00
○ 2026-04-23 18:33:04
○ 2026-04-25 00:54:20
○NSnhanhoa.mars.orderbox-dns.com2015-06-15 → 2017-10-16 · 4 obs
● 2017-10-16 16:54:00
○ 2026-04-23 18:33:04
○ 2026-04-25 00:54:20
○NSnhanhoa.mercury.orderbox-dns.com2015-06-15 → 2017-10-16 · 4 obs
● 2017-10-16 16:54:00
○ 2026-04-23 18:33:04
○ 2026-04-25 00:54:20
○NSnhanhoa.venus.orderbox-dns.com2015-06-15 → 2017-10-16 · 4 obs
● 2017-10-16 16:54:00
○ 2026-04-23 18:33:04
○ 2026-04-25 00:54:20
●NSns1.zonedns.vn2026-04-23 → 2026-04-25 · 3 obs
● 2026-04-23 18:33:04
● 2026-04-25 00:54:20
●NSns2.zonedns.vn2026-04-23 → 2026-04-25 · 3 obs
● 2026-04-23 18:33:04
● 2026-04-25 00:54:20
●NSns3.zonedns.vn2026-04-23 → 2026-04-25 · 3 obs
● 2026-04-23 18:33:04
● 2026-04-25 00:54:20
●NSns4.zonedns.vn2026-04-23 → 2026-04-25 · 3 obs
● 2026-04-23 18:33:04
● 2026-04-25 00:54:20
●MXvisaduhoc.net2026-04-23 → 2026-04-25 · 2 obs
● 2026-04-25 00:54:20
●A103.28.36.1182015-06-15 → 2026-04-25 · 2 obs
● 2026-04-25 00:54:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net... | - |
| visaduhoc.net | 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 visaduhoc.net (unsigned zone)
⏱️ Timing
Total: 1348ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.28.36.118 |
| NS | 3 | ns3.zonedns.vn, ns2.zonedns.vn... |
| MX | 1 | visaduhoc.net (pri: 10) |
| SOA | 1 | ns1.zonedns.vn root.visaduhoc.net |
Analysis
Mail Server Role
The mail server for visaduhoc.net is visaduhoc.net.
IP Addresses
visaduhoc.net maps to IP address 103.28.36.118.
Other host names, for example, mail.tuvanduhocnhat.com share IP numbers with visaduhoc.net.
Name Servers
visaduhoc.net is delegated to four name servers: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.
visaduhoc.net at least partially shares name servers with other domains such as deepc.vn, bansacthuonghieu.com, benhvienngomonghung.vn, voting.vn and hadochemical.com.
These name servers are commonly used with ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.
Host names with two IP numbers:
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.
Names pointing to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33: ns1.zonedns.vn and ns2.zonedns.vn.
Names pointing to 2001:df1:3200::15: ns3.zonedns.vn and ns4.zonedns.vn.
Mail Servers
One mail server serves visaduhoc.net.
visaduhoc.net points to one IP number: 103.28.36.118.