ddt-tech.com - robtex.com
ddt-tech.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.92.4.33🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN | ||||||
| PTR | nethost-0811.inet.vn | ||||||
| NS | ns-master.inet.vn ⭐ | ||||||
| A | 202.92.4.8🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN | ||||||
| NS | ns1.inet.vn | ||||||
| A | 2001:df7:ce00:1::7🇻🇳 VNPT-AS-VN2001:df7:ce00::/48 INETSOFT-VN Inet software one member company limited | ||||||
| A | 202.92.4.25🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN | ||||||
| NS | ns2.inet.vn | ||||||
| A | 2401:5f80:2001:4::30🇻🇳 VTDC-AS-VN2401:5f80:2000::/36 VTDC-VN | ||||||
| A | 210.211.99.38🇻🇳 VTDC-AS-VN210.211.99.0/24 Proxy-registered route object | ||||||
| MX | mx1.onemail.vn ⭐ | ||||||
| A | 103.216.116.14🇻🇳 VNPT-AS-VN103.216.116.0/22 INETSOFT-VN | ||||||
| PTR | mx1.smtp-in.onemail.vn | ||||||
| MX | mx2.onemail.vn ⭐ | ||||||
| A | 103.72.96.29🇻🇳 INETSOFT-AS-VN103.72.96.0/22 INETSOFT-VN | ||||||
| PTR | mx2.smtp-in.onemail.vn | ||||||
| MX | mx3.onemail.vn ⭐ | ||||||
| A | 103.56.162.10🇻🇳 VNPT-AS-VN103.56.160.0/22 INETSOFT-VN | ||||||
| PTR | mx3.smtp-in.onemail.vn | ||||||
| TXT | v=spf1 include:_spf.onemail.vn ~all | ||||||
| TXT | v=spf1 a mx ip4:123.30.50.53 ip4:123.30.50.67 ~all | ||||||
| SOA | ns-master.inet.vnpostmaster@inet.vn 2015-07-28 #1 | ||||||
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=1774443937 | ||||||
Subdomains
Same first word
ddt-tech.com |
Similar names
DNS History
10 records (7 active, 3 former)
●NSns-master.inet.vn2015-10-21 → 2026-03-25 · 2 obs
● 2026-03-25 13:06:52
○MXmail.ddt-tech.com2015-12-21 → 2016-09-15 · 5 obs
● 2015-12-21 02:54:32
● 2016-09-15 15:29:36
○ 2017-09-01 14:21:06
○ 2026-03-25 13:06:52
●MXmx1.onemail.vn2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 01:16:30
● 2026-03-25 13:06:52
●MXmx2.onemail.vn2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 01:16:30
● 2026-03-25 13:06:52
●MXmx3.onemail.vn2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 01:16:30
● 2026-03-25 13:06:52
○MXsmtp.mailer.inet.vn2015-05-18 → 2017-09-01 · 7 obs
● 2015-10-21 03:25:38
○ 2015-12-21 02:54:32
○ 2016-09-15 15:29:36
● 2017-09-01 14:21:06
○ 2026-02-18 01:16:30
○ 2026-03-25 13:06:52
○A123.30.50.1102015-05-18 → 2017-09-01 · 7 obs
● 2015-10-21 03:25:38
○ 2015-12-21 02:54:32
● 2016-03-26 09:11:00
● 2017-09-01 14:21:06
○ 2026-02-18 01:16:30
○ 2026-03-25 13:06:52
●A202.92.4.332026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 01:16:30
● 2026-03-25 13:06:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net... | - |
| ddt-tech.com | ns1.inet.vn, ns2.inet.vn | - |
✅ Authoritative Response
Server:202.92.4.25
NS records: ns1.inet.vn, ns2.inet.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ddt-tech.com (unsigned zone)
⏱️ Timing
Total: 946ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.92.4.33 |
| NS | 2 | ns1.inet.vn, ns2.inet.vn |
| MX | 3 | mx3.onemail.vn (pri: 0), mx2.onemail.vn (pri: 0)... |
| TXT | 2 | v=spf1 a mx ip4:123.30.50.53 ip4:123.30., v=spf1 include:_spf.onemail.vn ~all |
| SOA | 1 | ns-master.inet.vn postmaster.inet.vn |
Analysis
Hierarchy
ddt-tech.com is a parent of www.ddt-tech.com and mail.ddt-tech.com.
IP Addresses
ddt-tech.com points to a single IP number: 202.92.4.33.
Other host names, for instance asce.vn, nethost-0811.inet.vn, royalwater.vn, travietnam.vn and densuoiphongtam.vn share IP numbers with ddt-tech.com.
Name Servers
The domain ddt-tech.com is delegated to three name servers: ns-master.inet.vn, ns1.inet.vn and ns2.inet.vn.
ddt-tech.com shares name servers with other domains at least partially, for instance giamcanhieuqua.vn, deluxehouse.vn, phongthuyduongtung.com, mitsubishihadong3s.com.vn and inoxducha.com.
these name servers are commonly used together with ns3.inet.vn and hcmc3.saigonnet.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.
Host names with one IP:
ns-master.inet.vn points to 202.92.4.8.
Mail Servers
ddt-tech.com is handled by three mail servers: mx1.onemail.vn, mx2.onemail.vn and mx3.onemail.vn.
ddt-tech.com shares some mail servers with other domains, including bekatravel.com, dongduongcorp.com.vn, khanggiatech.vn, sainco.vn and vnhd.com.vn.
These mail servers are often used with the mail servers mx.inet.vn.
Host names with a single IP number:
mx1.onemail.vn points to 103.216.116.14.
mx2.onemail.vn points to 103.72.96.29.
mx3.onemail.vn points to 103.56.162.10.