viettinhtu.com - robtex.com
viettinhtu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 64.131.73.127🇺🇸 LEASEWEB-US64.131.64.0/19 Leaseweb USA, Inc. | ||||||
| PTR | vps2.viettinhtu.com | ||||||
| NS | ns1.viettinhtu.com ⭐ | ||||||
| A | 64.131.73.127🇺🇸 LEASEWEB-US64.131.64.0/19 Leaseweb USA, Inc. | ||||||
| PTR | vps2.viettinhtu.com | ||||||
| NS | ns2.viettinhtu.com | ||||||
| A | 64.131.74.31🇺🇸 LEASEWEB-US64.131.64.0/19 Leaseweb USA, Inc. | ||||||
| PTR | vps2.viettinhtu.com | ||||||
| MX | viettinhtu.com ⭐ | ||||||
| A | 64.131.73.127🇺🇸 LEASEWEB-US64.131.64.0/19 Leaseweb USA, Inc. | ||||||
| PTR | vps2.viettinhtu.com | ||||||
| TXT | v=spf1 ip4:64.131.73.127 +a +mx ~all | ||||||
| SOA | ns1.viettinhtu.comroot@vps2.viettinhtu.com 2026-05-06 #0 | ||||||
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=1778537196 | ||||||
MX for
viettinhtu.com |
Subdomains
Same first word
viettinhtu.com |
DNS History
5 records (4 active, 1 former)
●NSns1.viettinhtu.com2015-08-16 → 2026-05-11 · 2 obs
● 2026-05-11 22:13:06
●NSns2.viettinhtu.com2015-08-16 → 2026-05-11 · 2 obs
● 2026-05-11 22:13:06
●MXviettinhtu.com2015-08-16 → 2026-05-11 · 2 obs
● 2026-05-11 22:13:06
○A216.22.2.452015-08-16 → 2017-04-05 · 4 obs
● 2017-04-05 13:42:48
○ 2020-03-23 20:48:00
○ 2026-05-11 22:13:06
●A64.131.73.1272020-03-23 → 2026-05-11 · 3 obs
● 2020-03-23 20:48:00
● 2026-05-11 22:13:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, h.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net... | - |
| viettinhtu.com | ns1.viettinhtu.com, ns2.viettinhtu.com | 2 records |
✅ Authoritative Response
Server:64.131.73.127
NS records: ns1.viettinhtu.com, ns2.viettinhtu.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for viettinhtu.com (unsigned zone)
⏱️ Timing
Total: 99ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 64.131.73.127 |
| NS | 2 | ns1.viettinhtu.com, ns2.viettinhtu.com |
| MX | 1 | viettinhtu.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:64.131.73.127 +a +mx ~all |
| SOA | 1 | ns1.viettinhtu.com root.vps2.viettinhtu. |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.viettinhtu.com, ns2.viettinhtu.com)
Analysis
Hierarchy
viettinhtu.com is parent of www.viettinhtu.com, ns2.viettinhtu.com, ns1.viettinhtu.com and vps2.viettinhtu.com.
Mail Server Role
viettinhtu.com serves as the mail server for viettinhtu.com.
IP Addresses
viettinhtu.com points to a single IP address: 64.131.73.127.
Other host names such as tta.com.vn, tobicom.com.vn, icapharmaceuticals.com, ns1.viettinhtu.com and vps2.viettinhtu.com share IP numbers with viettinhtu.com.
Name Servers
viettinhtu.com is delegated to two name servers: ns1.viettinhtu.com and ns2.viettinhtu.com.
viettinhtu.com uses the same name server configuration as other domains, such as nhahangonline.com, tta.com.vn, tobicom.com.vn and icapharmaceuticals.com.
Hostnames with a single IP
ns1.viettinhtu.com resolves to: 64.131.73.127.
ns2.viettinhtu.com resolves to: 64.131.74.31.
Mail Servers
Mail for viettinhtu.com is handled by a single mail server, viettinhtu.com.
Host viettinhtu.com points to IP 64.131.73.127.