thanhdongct.com - robtex.com

thanhdongct.com

DNSSEC⚠️ Not signed
A124.158.9.15🇻🇳 CMC-3124.158.9.0/24 CMCTELECOM-VN
PTRvps04.rith-tech.com
NSns1.zonedns.vn ⭐
A2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix
A64.176.84.220🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix
PTRns1.zonedns.vn
NSns2.zonedns.vn
A2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix
A103.176.178.51🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN
NSns3.zonedns.vn
A2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN
A103.28.36.30🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN
NSns4.zonedns.vn
A2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN
A103.28.39.159🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN
MXmx1.000nethost.com ⭐
A103.216.116.14🇻🇳 VNPT-AS-VN103.216.116.0/22 INETSOFT-VN
PTRmx1.smtp-in.onemail.vn
MXmx2.000nethost.com ⭐
A103.72.96.29🇻🇳 INETSOFT-AS-VN103.72.96.0/22 INETSOFT-VN
PTRmx2.smtp-in.onemail.vn
MXmx3.000nethost.com ⭐
A103.56.162.10🇻🇳 VNPT-AS-VN103.56.160.0/22 INETSOFT-VN
PTRmx3.smtp-in.onemail.vn
TXTv=spf1 include:_spf.000nethost.com ~all
TXTv=spf1 a mx include:_spf.inet.vn ~all
SOAns1.zonedns.vnroot@thanhdongct.com 2025-07-19 #6

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774496852

Subdomains

mail.thanhdongct.com

Same first word

thanhdongct.com

DNS History

14 records (8 active, 6 former)

2017201820192020202120222023202420252026NSns1.zonedns.vnns2.zonedns.vnns3.zonedns.vnns4.zonedns.vnns1.tenten.vnns1.tenten.vn.thanhdongct.comns2.tenten.vnns3.tenten.vnMXmx1.000nethost.commx2.000nethost.commx3.000nethost.comA124.158.9.15103.27.238.10045.117.77.45
○NSns1.tenten.vn2016-12-15 → 2017-07-06 · 4 obs
● 2016-12-15 00:03:22
● 2017-07-06 04:48:16
○ 2026-02-16 04:24:38
○ 2026-03-26 04:03:34
○NSns1.tenten.vn.thanhdongct.com2016-12-15 → 2016-12-15 · 3 obs
● 2016-12-15 00:03:22
○ 2017-07-06 04:48:16
○ 2026-03-26 04:03:34
●NSns1.zonedns.vn2026-02-16 → 2026-03-26 · 3 obs
○ 2017-07-06 04:48:16
● 2026-02-16 04:24:38
● 2026-03-26 04:03:34
○NSns2.tenten.vn2016-12-15 → 2017-07-06 · 4 obs
● 2016-12-15 00:03:22
● 2017-07-06 04:48:16
○ 2026-02-16 04:24:38
○ 2026-03-26 04:03:34
●NSns2.zonedns.vn2026-02-16 → 2026-03-26 · 3 obs
○ 2017-07-06 04:48:16
● 2026-02-16 04:24:38
● 2026-03-26 04:03:34
○NSns3.tenten.vn2016-12-15 → 2017-07-06 · 4 obs
● 2016-12-15 00:03:22
● 2017-07-06 04:48:16
○ 2026-02-16 04:24:38
○ 2026-03-26 04:03:34
●NSns3.zonedns.vn2026-02-16 → 2026-03-26 · 3 obs
○ 2017-07-06 04:48:16
● 2026-02-16 04:24:38
● 2026-03-26 04:03:34
●NSns4.zonedns.vn2026-02-16 → 2026-03-26 · 3 obs
○ 2017-07-06 04:48:16
● 2026-02-16 04:24:38
● 2026-03-26 04:03:34
●MXmx1.000nethost.com2026-02-16 → 2026-03-26 · 2 obs
● 2026-02-16 04:24:38
● 2026-03-26 04:03:34
●MXmx2.000nethost.com2026-02-16 → 2026-03-26 · 2 obs
● 2026-02-16 04:24:38
● 2026-03-26 04:03:34
●MXmx3.000nethost.com2026-02-16 → 2026-03-26 · 2 obs
● 2026-02-16 04:24:38
● 2026-03-26 04:03:34
○A103.27.238.1002016-12-15 → 2016-12-15 · 3 obs
● 2016-12-15 00:03:22
○ 2017-07-06 04:48:16
○ 2026-03-26 04:03:34
●A124.158.9.152026-02-16 → 2026-03-26 · 3 obs
○ 2017-07-06 04:48:16
● 2026-02-16 04:24:38
● 2026-03-26 04:03:34
○A45.117.77.452017-07-06 → 2017-07-06 · 4 obs
○ 2016-12-15 00:03:22
● 2017-07-06 04:48:16
○ 2026-02-16 04:24:38
○ 2026-03-26 04:03:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
thanhdongct.comns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn-

✅ Authoritative Response

Server:103.176.178.51

NS records: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thanhdongct.com (unsigned zone)

⏱️ Timing

Total: 4775ms | Queries: -

📄 Records

TypeCountSample Data
A1124.158.9.15
NS4ns1.zonedns.vn, ns4.zonedns.vn...
MX3mx3.000nethost.com (pri: 10), mx2.000nethost.com (pri: 10)...
TXT2v=spf1 a mx include:_spf.inet.vn ~all, v=spf1 include:_spf.000nethost.com ~all
SOA1ns1.zonedns.vn root.thanhdongct.com

Analysis

Hierarchy

The parent of mail.thanhdongct.com is thanhdongct.com.

IP Addresses

thanhdongct.com points to a single IP: 124.158.9.15.

Other host names, for example katec.vn, mail.kinhtek21.com, mail.katec.vn and kinhtek21.com share IP numbers with thanhdongct.com.

Name Servers

thanhdongct.com's delegation is handled by four name servers: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.

thanhdongct.com partially shares name servers with other domains; examples include lipzo.com, capbalo.com, visti.gov.vn, gomsubavinh.com and shopbe.vn.

These name servers commonly accompany ns2008.nhanhoa.com.vn, ns2009.nhanhoa.com.vn, ns2001.nhanhoa.com and ns2002.nhanhoa.com.

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

thanhdongct.com is handled by three mail servers: mx1.000nethost.com, mx2.000nethost.com and mx3.000nethost.com.

thanhdongct.com shares some mail servers with other domains, at least partially, such as dalatacademy.edu.vn, dnb-studio.com, galaxy24.net, thaibinhweb.net and hoanglamstone.com.

These mail servers are often used with the mail servers mx.inet.vn.

Host names with one IP number:

Host mx1.000nethost.com points to 103.216.116.14.

Host mx2.000nethost.com points to 103.72.96.29.

Host mx3.000nethost.com points to 103.56.162.10.