cuongb2b.com - robtex.com
cuongb2b.com
com
| 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=1778307071 | ||||||
Subdomains
www.cuongb2b.com |
Same first word
cuongb2b.com |
DNS History
7 records (7 active, 0 former)
●NSns-master.inet.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 06:31:34
●MXmail.cuongb2b.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 06:31:34
●A103.57.221.502026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 06:31:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cuongb2b.com | ns1.inet.vn, ns2.inet.vn, ns3.inet.vn | - |
✅ Authoritative Response
Server:202.92.4.25
NS records: ns1.inet.vn, ns2.inet.vn, ns3.inet.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cuongb2b.com (unsigned zone)
⏱️ Timing
Total: 995ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.57.221.50 |
| NS | 3 | ns3.inet.vn, ns1.inet.vn... |
| MX | 2 | mail.cuongb2b.com (pri: 5), mx.inet.vn (pri: 0) |
| TXT | 3 | v=spf1 mx a include:_spf.getresponse.com, v=spf1 ip4:103.57.223.107 mx ~all... |
| SOA | 1 | ns-master.inet.vn postmaster.inet.vn |
Analysis
Hierarchy
www.cuongb2b.com is a child of cuongb2b.com.
IP Addresses
cuongb2b.com resolves to one IP number: 103.57.221.50.
Other host names, for instance lethiman.biz.vn, nguyenhuuchon.biz.vn, nhatrangbay.vn, thuyho.biz.vn and www.thuyha.net share IP numbers with cuongb2b.com.
Name Servers
cuongb2b.com delegates to four name servers: ns-master.inet.vn, ns1.inet.vn, ns2.inet.vn and ns3.inet.vn.
cuongb2b.com at least partially shares name servers with other domains, including noithatcthome.com, thepbaoanh.com, gslighting.com.vn, phongvanmusic.com and isolar.com.vn.
Host names with two IPs:
ns1.inet.vn points to 2001:df7:ce00:1::7 and 202.92.4.25
ns2.inet.vn points to 2401:5f80:2001:4::30 and 210.211.99.38
ns3.inet.vn points to 2401:5f80:4001:4::14 and 203.113.174.42
Host names with one IP:
ns-master.inet.vn points to 202.92.4.8
Mail Servers
cuongb2b.com is served by two mail servers mail.cuongb2b.com and mx.inet.vn.
cuongb2b.com shares at least some mail servers with other domains, for example degrees.edu.vn, tcorp.com.vn, tinphattravel.com, bitechcom.vn and tekom.com.vn.
these mail servers commonly accompany mx1.onemail.vn, mx2.onemail.vn and mx3.onemail.vn.
Host names with four IP numbers: mx.inet.vn points to 103.72.96.6, 103.72.96.8, 103.72.96.9 and 103.216.116.158.
Host names with one IP number: mail.cuongb2b.com points to 103.57.220.204.