ibstcotec.com.vn - robtex.com
ibstcotec.com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.28.36.80🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| 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.ibstcotec.com.vn ⭐ | ||||||
| A | 123.30.174.126🇻🇳 VTN-1123.30.174.0/24 VNPT | ||||||
| PTR | ln174126.bkns.com.vn | ||||||
| SOA | ns1.pavietnam.vnhostmaster@ibstcotec.com.vn 2020-12-02 #3 | ||||||
com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | b.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | c.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | d.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | e.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | f.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | g.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | h.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2022709801 | ||||||
Subdomains
mail.ibstcotec.com.vn |
Same first word
ibstcotec.com.vn |
Similar names
DNS History
11 records (6 active, 5 former)
○NSdns15.fpt.vn2015-06-08 → 2017-12-28 · 4 obs
● 2017-12-28 13:39:58
○ 2026-03-27 13:29:34
○ 2026-05-11 11:07:10
○NSdns16.fpt.vn2015-06-08 → 2017-12-28 · 4 obs
● 2017-12-28 13:39:58
○ 2026-03-27 13:29:34
○ 2026-05-11 11:07:10
●NSns1.dotvndns.vn2026-03-27 → 2026-05-11 · 3 obs
● 2026-03-27 13:29:34
● 2026-05-11 11:07:10
●NSns1.pavietnam.vn2026-03-27 → 2026-05-11 · 3 obs
● 2026-03-27 13:29:34
● 2026-05-11 11:07:10
●NSns2.dotvndns.vn2026-03-27 → 2026-05-11 · 3 obs
● 2026-03-27 13:29:34
● 2026-05-11 11:07:10
●NSnsbak.dotvndns.com2026-03-27 → 2026-05-11 · 3 obs
● 2026-03-27 13:29:34
● 2026-05-11 11:07:10
●MXmail.ibstcotec.com.vn2015-06-08 → 2026-05-11 · 2 obs
● 2026-05-11 11:07:10
●A103.28.36.802026-03-27 → 2026-05-11 · 3 obs
● 2026-03-27 13:29:34
● 2026-05-11 11:07:10
○A103.48.81.232015-10-17 → 2016-12-22 · 5 obs
● 2015-10-17 01:57:10
● 2016-12-22 13:09:56
○ 2017-12-28 13:39:58
○ 2026-05-11 11:07:10
○A103.74.123.82017-12-28 → 2017-12-28 · 4 obs
● 2017-12-28 13:39:58
○ 2026-03-27 13:29:34
○ 2026-05-11 11:07:10
○A123.30.174.1262015-06-08 → 2015-06-08 · 3 obs
○ 2015-10-17 01:57:10
○ 2026-05-11 11:07:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| ibstcotec.com.vn | nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn | - |
✅ Authoritative Response
Server:112.213.89.22
NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ibstcotec.com.vn (unsigned zone)
⏱️ Timing
Total: 2111ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.28.36.80 |
| NS | 3 | nsbak.dotvndns.com, ns1.dotvndns.vn... |
| MX | 1 | mail.ibstcotec.com.vn (pri: 100) |
| SOA | 1 | ns1.pavietnam.vn hostmaster.ibstcotec.co |
Analysis
Hierarchy
mail.ibstcotec.com.vn is a child of ibstcotec.com.vn.
IP Addresses
ibstcotec.com.vn resolves to one IP number: 103.28.36.80.
Other host names, for instance cpcontacts.quangoai.edu.vn, www.trungtamongvcn.vn, kjvc.com.vn, vgcs.edu.vn and wbsubdomain.a.bb.ccc.dddd.quangoai.edu.vn share IP numbers with ibstcotec.com.vn.
Name Servers
ibstcotec.com.vn delegates to four name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns1.pavietnam.vn.
ibstcotec.com.vn at least partially shares name servers with other domains, including truonggiangaudio.vn, addycare.vn, xn--shopxinh-ocb4927e.vn, acma.vn and danangreview.vn.
These name servers are commonly used with ns2.pavietnam.vn, nsbak.pavietnam.net and ns3.dotvndns.vn.
Host names with two IP numbers
Host nsbak.dotvndns.com points to 2406:9c80::9000:302 and 112.213.89.22
Host ns1.dotvndns.vn points to 2406:9c80::66 and 112.213.89.3
Host ns2.dotvndns.vn points to 2406:9c80::9000:111 and 222.255.121.247
Host ns1.pavietnam.vn points to 2406:9c80::66 and 112.213.89.3
Host names that point to 2406:9c80::66: ns1.dotvndns.vn and ns1.pavietnam.vn
Host names that point to 112.213.89.3: ns1.dotvndns.vn and ns1.pavietnam.vn
Mail Servers
A single mail server handles ibstcotec.com.vn, mail.ibstcotec.com.vn.
Host name mail.ibstcotec.com.vn resolves to a single IP: 123.30.174.126.