xaydunghocmon.com - robtex.com
xaydunghocmon.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.82.21.178🇻🇳 VNPT-AS-VN103.82.20.0/22 INETACADEMY-AS-VN | ||||||
| PTR | 103.82.21.178.cloudfly.vn | ||||||
| NS | ns1.nina.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 | 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 | ||||||
| NS | ns3.dotvndns.vn | ||||||
| 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 | ns4.dotvndns.vn | ||||||
| NS | nsbak.dotvndns.com ⚠️ Not in zone NS records | ||||||
| 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 | ||||||
| MX | mail.xaydunghocmon.com ⭐ | ||||||
| A | 103.82.21.178🇻🇳 VNPT-AS-VN103.82.20.0/22 INETACADEMY-AS-VN | ||||||
| PTR | 103.82.21.178.cloudfly.vn | ||||||
| TXT | v=spf1 ip4:103.82.21.178 a mx include:_spf.google.com include:xaydunghocmon.c... | ||||||
| TXT | google-site-verification=OFjLjPxcwGZQDxZYtCbUUdvvqMHWjlBveLRAGOlBMmA | ||||||
| SOA | ns1.nina.vnhostmaster@xaydunghocmon.com 2026-04-21 #7 | ||||||
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=1778384366 | ||||||
Same first word
xaydunghocmon.com |
DNS History
8 records (8 active, 0 former)
●NSns1.dotvndns.vn2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 04:06:04
●NSns2.dotvndns.vn2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 04:06:04
●NSns3.dotvndns.vn2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 04:06:04
●NSns4.dotvndns.vn2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 04:06:04
●NSnsbak.dotvndns.com2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 04:06:04
●MXmail.xaydunghocmon.com2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 04:06:04
●A103.82.21.1782026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 04:06:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net... | - |
| xaydunghocmon.com | nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn... | 2 records |
✅ Authoritative Response
Server:112.213.89.22
NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn, ns4.dotvndns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for xaydunghocmon.com (unsigned zone)
⏱️ Timing
Total: 3830ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.82.21.178 |
| NS | 4 | ns3.dotvndns.vn, ns1.dotvndns.vn... |
| MX | 1 | mail.xaydunghocmon.com (pri: 10) |
| TXT | 2 | google-site-verification=OFjLjPxcwGZQDxZ, v=spf1 ip4:103.82.21.178 a mx include:_s |
| SOA | 1 | ns1.nina.vn hostmaster.xaydunghocmon.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)
Analysis
IP Addresses
xaydunghocmon.com points to a single IP number: 103.82.21.178.
other host names for instance traicaysaythailan.com, namquocthinh.com, jvmvhwhat.website.smesupport.gov.vn, cpanel.smesupport.gov.vn and www.dnlshipping.vn share IP numbers with xaydunghocmon.com.
Name Servers
xaydunghocmon.com is delegated to six name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn, ns4.dotvndns.vn and ns1.nina.vn.
xaydunghocmon.com at least partially shares name servers with other domains, for instance inlogo.org, avschool.edu.vn, vppthienlong.vn, thucphamsach.vn and vinasecurities.com.
These name servers are commonly used alongside the name servers ns1.pavietnam.vn, ns2.nina.vn, ns3.nina.vn, ns2.pavietnam.vn and nsbak.pavietnam.net.
Host names by IP count:
Two IP numbers
The host name nsbak.dotvndns.com points to 2406:9c80::9000:302 and 112.213.89.22
The host name ns1.dotvndns.vn points to 2406:9c80::66 and 112.213.89.3
The host name ns2.dotvndns.vn points to 2406:9c80::9000:111 and 222.255.121.247
One IP number
The host name ns3.dotvndns.vn points to 112.213.89.22
The host name ns1.nina.vn points to 112.213.89.3
Shared destinations
112.213.89.22 is used by nsbak.dotvndns.com and ns3.dotvndns.vn
112.213.89.3 is used by ns1.dotvndns.vn and ns1.nina.vn
Mail Servers
xaydunghocmon.com is handled by a single mail server, mail.xaydunghocmon.com.
Host name mail.xaydunghocmon.com points to IP address 103.82.21.178.