ducduongco.com - robtex.com
ducduongco.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.1.236.199🇻🇳 SUPERDATA103.1.236.0/24 -VN | ||||||
| PTR | mx236199.superdata.vn | ||||||
| NS | nsbak.dotvndns.com ⭐ | ||||||
| A | 2406:9c80::9000:302🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | nsbak.dotvndns.com | ||||||
| A | 112.213.89.22🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns8922.dotvndns.vn | ||||||
| NS | ns1.dotvndns.vn | ||||||
| A | 2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| A | 112.213.89.3🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| NS | ns2.dotvndns.vn | ||||||
| A | 2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns2.dotvndns.vn | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| MX | mail9398.maychuemail.com ⭐ | ||||||
| A | 112.213.93.98🇻🇳 SUPERDATA112.213.93.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | mail9398.maychuemail.com | ||||||
| MX | mx9398.maychuemail.net(10) | ||||||
| A | 112.213.93.98🇻🇳 SUPERDATA112.213.93.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | mail9398.maychuemail.com | ||||||
| TXT | v=spf1 ip4:112.213.90.10 ip4:112.213.93.98 +a +mx -all | ||||||
| SOA | nsbak.dotvndns.comhostmaster@ducduongco.com 2025-05-07 #11 | ||||||
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=1777068001 | ||||||
Same first word
ducduongco.com |
DNS History
8 records (6 active, 2 former)
●NSns1.dotvndns.vn2015-05-29 → 2026-04-24 · 2 obs
● 2026-04-24 22:27:30
●NSns2.dotvndns.vn2015-05-29 → 2026-04-24 · 2 obs
● 2026-04-24 22:27:30
●NSnsbak.dotvndns.com2026-03-17 → 2026-04-24 · 3 obs
● 2026-03-17 08:24:24
● 2026-04-24 22:27:30
○MXmail.ducduongco.com2015-05-29 → 2016-11-27 · 4 obs
● 2016-11-27 13:41:02
○ 2026-03-17 08:24:24
○ 2026-04-24 22:27:30
●MXmail9398.maychuemail.com2026-03-17 → 2026-04-24 · 3 obs
● 2026-03-17 08:24:24
● 2026-04-24 22:27:30
●MXmx9398.maychuemail.net2026-03-17 → 2026-04-24 · 3 obs
● 2026-03-17 08:24:24
● 2026-04-24 22:27:30
●A103.1.236.1992026-03-17 → 2026-04-24 · 3 obs
● 2026-03-17 08:24:24
● 2026-04-24 22:27:30
○A112.213.94.1862015-05-29 → 2016-11-27 · 4 obs
● 2016-11-27 13:41:02
○ 2026-03-17 08:24:24
○ 2026-04-24 22:27:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net, l.gtld-servers.net... | - |
| ducduongco.com | nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn | 2 records |
✅ Authoritative Response
Server:222.255.121.247
NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ducduongco.com (unsigned zone)
⏱️ Timing
Total: 1896ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.1.236.199 |
| NS | 3 | nsbak.dotvndns.com, ns2.dotvndns.vn... |
| MX | 2 | mx9398.maychuemail.net (pri: 10), mail9398.maychuemail.com (pri: 5) |
| TXT | 1 | v=spf1 ip4:112.213.90.10 ip4:112.213.93. |
| SOA | 1 | nsbak.dotvndns.com hostmaster.ducduongco |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)
Analysis
IP Addresses
ducduongco.com resolves to a single IP address: 103.1.236.199.
Other host names including sup.vn, 24hquangcao.com, ausavina.com, pnlus.com and sapuwa.com share IP numbers with ducduongco.com.
Name Servers
ducduongco.com is delegated to three name servers: nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.
ducduongco.com at least partially shares name servers with other domains, including quyhotronongdan.vn, hpsc.com.vn, phuhoangcorp.vn, shinco.com.vn and wss.vn.
These name servers are commonly used with the name servers ns1.pavietnam.vnns3.dotvndns.vnns2.pavietnam.vnnsbak.pavietnam.netns4.dotvndns.vn and nsbak.dotvndns.vn.
Host names with two IP numbers:
nsbak.dotvndns.com points to: 2406:9c80::9000:302 and 112.213.89.22
ns1.dotvndns.vn points to: 2406:9c80::66 and 112.213.89.3
ns2.dotvndns.vn points to: 2406:9c80::9000:111 and 222.255.121.247
Mail Servers
ducduongco.com is handled by two mail servers: mail9398.maychuemail.com and mx9398.maychuemail.net.
ducduongco.com shares its mail server setup with other domains, including caonguyentour.com, summit.com.vn, gstore-livewell.com.vn, dongduhanoi.edu.vn and minervas.vn.
ducduongco.com shares some mail servers with other domains, for instance deair.com.vn, ssoftware.vn, thienhy.com.vn and lagoonabinhchau.com.
Host names with a single IP:
- mail9398.maychuemail.com points to 112.213.93.98
- mx9398.maychuemail.net points to 112.213.93.98
Host names that point to 112.213.93.98: mail9398.maychuemail.com and mx9398.maychuemail.net