ctqtec.vn - robtex.com
ctqtec.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 115.146.126.82🇻🇳 CMC-2115.146.126.0/24 CMCTELECOM-VN | ||||||
| PTR | violet.host999.net | ||||||
| NS | ns1.pavietnam.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 | 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 | 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 | ||||||
| MX | mail.ctqtec.vn ⭐ | ||||||
| A | 115.146.127.150🇻🇳 CMC-2115.146.127.0/24 CMCTELECOM-VN | ||||||
| PTR | quad.host999.net | ||||||
| SOA | ns1.pavietnam.vnhostmaster@ctqtec.vn 2024-08-21 #4 | ||||||
vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn | ||||||
| NS | b.dns-servers.vn | ||||||
| NS | c.dns-servers.vn | ||||||
| NS | d.dns-servers.vn | ||||||
| NS | e.dns-servers.vn | ||||||
| NS | f.dns-servers.vn | ||||||
| NS | g.dns-servers.vn | ||||||
| NS | h.dns-servers.vn | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2030754543 | ||||||
Subdomains
Same first word
ctqtec.vn |
DNS History
6 records (6 active, 0 former)
●NSns1.dotvndns.vn2020-03-07 → 2026-05-10 · 2 obs
● 2026-05-10 10:39:50
●NSns1.pavietnam.vn2026-05-08 → 2026-05-10 · 3 obs
● 2026-05-08 10:13:02
● 2026-05-10 10:39:50
●NSns2.dotvndns.vn2020-03-07 → 2026-05-10 · 2 obs
● 2026-05-10 10:39:50
●NSnsbak.dotvndns.com2020-03-07 → 2026-05-10 · 2 obs
● 2026-05-10 10:39:50
●MXmail.ctqtec.vn2020-03-07 → 2026-05-10 · 2 obs
● 2026-05-10 10:39:50
●A115.146.126.822020-03-07 → 2026-05-10 · 2 obs
● 2026-05-10 10:39:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn... | - |
| ctqtec.vn | ns2.dotvndns.vn, ns1.dotvndns.vn, nsbak.dotvndns.com | 4 records |
✅ Authoritative Response
Server:112.213.89.3
NS records: ns2.dotvndns.vn, ns1.dotvndns.vn, nsbak.dotvndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctqtec.vn (unsigned zone)
⏱️ Timing
Total: 1701ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 115.146.126.82 |
| NS | 3 | ns1.dotvndns.vn, ns2.dotvndns.vn... |
| MX | 1 | mail.ctqtec.vn (pri: 10) |
| SOA | 1 | ns1.pavietnam.vn hostmaster.ctqtec.vn |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.dotvndns.vn, ns1.dotvndns.vn, ns2.dotvndns.vn...)
Analysis
Hierarchy
ctqtec.vn is parent of www.ctqtec.vn and mail.ctqtec.vn.
IP Addresses
ctqtec.vn points to a single IP: 115.146.126.82.
Other host names, for instance www.tboutique.vn, intertrans.com.vn, hostmaster.travelhalongbay.com, violet.host999.net and samson.net.vn share IP numbers with ctqtec.vn.
Name Servers
ctqtec.vn is delegated to four name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns1.pavietnam.vn.
ctqtec.vn at least partially shares its name servers with other domains, for instance evnhcmc.vn, saovieta.com, haduvico.vn, tiengducduhoc.edu.vn and takadecor.com.
these name servers are commonly used with the name servers ns2.pavietnam.vn, nsbak.pavietnam.net, ns3.dotvndns.vn, ns4.dotvndns.vn and nsbak.dotvndns.vn.
Host names with two IPs
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
The host name ns1.pavietnam.vn points to 2406:9c80::66 and 112.213.89.3
Hosts that point to 2406:9c80::66: ns1.dotvndns.vn and ns1.pavietnam.vn
Hosts that point to 112.213.89.3: ns1.dotvndns.vn and ns1.pavietnam.vn
Mail Servers
ctqtec.vn is served by a single mail server, mail.ctqtec.vn.
mail.ctqtec.vn points to IP number 115.146.127.150.