smartjsc.vn - robtex.com
smartjsc.vn
| DNSSEC | ⚠️ Not signed | ||||||
| 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 | mx.umailsmtp.com ⭐ | ||||||
| TXT | v=spf1 include:dn(0x736578)it.com include:_spf.umailsmtp.com -all | ||||||
| SOA | ns1.zonedns.vnroot@smartjsc.vn 2025-09-18 #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=2030759417 | ||||||
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
○NSns-master.inet.vn2019-12-20 → 2019-12-20 · 3 obs
○ 2026-03-28 06:31:44
○ 2026-05-11 13:27:14
○NSns1.inet.vn2019-12-20 → 2019-12-20 · 3 obs
○ 2026-03-28 06:31:44
○ 2026-05-11 13:27:14
●NSns1.zonedns.vn2026-03-28 → 2026-05-11 · 3 obs
● 2026-03-28 06:31:44
● 2026-05-11 13:27:14
○NSns2.inet.vn2019-12-20 → 2019-12-20 · 3 obs
○ 2026-03-28 06:31:44
○ 2026-05-11 13:27:14
●NSns2.zonedns.vn2026-03-28 → 2026-05-11 · 3 obs
● 2026-03-28 06:31:44
● 2026-05-11 13:27:14
●NSns3.zonedns.vn2026-03-28 → 2026-05-11 · 3 obs
● 2026-03-28 06:31:44
● 2026-05-11 13:27:14
●NSns4.zonedns.vn2026-03-28 → 2026-05-11 · 3 obs
● 2026-03-28 06:31:44
● 2026-05-11 13:27:14
●MXmx.umailsmtp.com2026-03-28 → 2026-05-11 · 2 obs
● 2026-05-11 13:27:14
○A202.92.5.572019-12-20 → 2019-12-20 · 3 obs
○ 2026-03-28 06:31:44
○ 2026-05-11 13:27:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn... | - |
| smartjsc.vn | ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn | - |
✅ Authoritative Response
Server:103.28.39.159
NS records: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for smartjsc.vn (unsigned zone)
⏱️ Timing
Total: 2810ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1.zonedns.vn, ns4.zonedns.vn... |
| MX | 1 | mx.umailsmtp.com (pri: 10) |
| TXT | 1 | v=spf1 include:dn(0x736578)it.com include:_spf. |
| SOA | 1 | ns1.zonedns.vn root.smartjsc.vn |
Analysis
Name Servers
smartjsc.vn delegates to four name servers: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.
smartjsc.vn at least partially shares name servers with other domains, including dulichcaonien.com, ghub.vn, vinalabjsc.com, vidas.vn and xaydungmanhthang.com.vn.
These name servers are often used with ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.
Host names with two IP numbers
ns1.zonedns.vn maps to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 64.176.84.220
ns2.zonedns.vn maps to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 103.176.178.51
ns3.zonedns.vn maps to 2001:df1:3200::15 and 103.28.36.30
ns4.zonedns.vn maps to 2001:df1:3200::15 and 103.28.39.159
Host names that map to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33: ns1.zonedns.vn and ns2.zonedns.vn
Host names that map to 2001:df1:3200::15: ns3.zonedns.vn and ns4.zonedns.vn
Pattern: 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 is used by ns1.zonedns.vn and ns2.zonedns.vn; 2001:df1:3200::15 is used by ns3.zonedns.vn and ns4.zonedns.vn
Mail Servers
A single mail server handles smartjsc.vn, mx.umailsmtp.com.
smartjsc.vn shares the same mail server setup as other domains, for instance goldcatmotor.vn, circuitcraft.vn, luatnguyendanh.com, duhocbusa.edu.vn and floridahotel.vn.