ojs.vn - robtex.com
ojs.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 203.162.121.37🇻🇳 VTN-1203.162.121.0/24 VNPT | ||||||
| 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 | ||||||
| SOA | ns1.zonedns.vnroot@ojs.vn 2026-02-02 #1 | ||||||
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=2030938509 | ||||||
Subdomains
demo.ojs.vn |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.zonedns.vn2026-05-26 → 2026-06-28 · 2 obs
● 2026-06-28 23:47:22
●NSns2.zonedns.vn2026-05-26 → 2026-06-28 · 2 obs
● 2026-06-28 23:47:22
●NSns3.zonedns.vn2026-05-26 → 2026-06-28 · 2 obs
● 2026-06-28 23:47:22
●NSns4.zonedns.vn2026-05-26 → 2026-06-28 · 2 obs
● 2026-06-28 23:47:22
●A203.162.121.372026-05-26 → 2026-06-28 · 5 obs
● 2026-06-08 22:17:06
○ 2026-06-16 21:31:52
● 2026-06-27 15:18:34
● 2026-06-28 23:47:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | b.dns-servers.vn, e.dns-servers.vn, f.dns-servers.vn, a.dns-servers.vn... | - |
| ojs.vn | ns4.zonedns.vn, ns3.zonedns.vn, ns1.zonedns.vn, ns2.zonedns.vn | - |
✅ Authoritative Response
Server:103.176.178.51
NS records: ns4.zonedns.vn, ns3.zonedns.vn, ns1.zonedns.vn, ns2.zonedns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ojs.vn (unsigned zone)
⏱️ Timing
Total: 2460ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.162.121.37 |
| NS | 4 | ns3.zonedns.vn, ns4.zonedns.vn... |
| SOA | 1 | ns1.zonedns.vn root.ojs.vn |
Analysis
Hierarchy
ojs.vn is the parent zone for demo.ojs.vn.
IP Addresses
ojs.vn points to a single IP number: 203.162.121.37.
Name Servers
ojs.vn has four authoritative name servers: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.
ojs.vn partially shares its NS delegation with several other domains, including induyquan.vn, uban.vn, quartzvietnam.com and two others.
ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn each resolve to two IP addresses. ns1.zonedns.vn points to 64.176.84.220 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33. ns2.zonedns.vn points to 103.176.178.51 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33. ns3.zonedns.vn points to 103.28.36.30 and 2001:df1:3200::15. ns4.zonedns.vn points to 103.28.39.159 and 2001:df1:3200::15.
The host names ns1.zonedns.vn and ns2.zonedns.vn both resolve to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 IP addresses.
The host names ns3.zonedns.vn and ns4.zonedns.vn both resolve to 2001:df1:3200::15 IP addresses.