topcent.com.vn - robtex.com
topcent.com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.82.21.170🇻🇳 VNPT-AS-VN103.82.20.0/22 INETACADEMY-AS-VN | ||||||
| PTR | mail21170.bmcloud.io.vn | ||||||
| NS | ns3.nina.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 | 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.topcent.com.vn ⭐ | ||||||
| A | 103.82.21.170🇻🇳 VNPT-AS-VN103.82.20.0/22 INETACADEMY-AS-VN | ||||||
| PTR | mail21170.bmcloud.io.vn | ||||||
| TXT | v=spf1 ip4:103.82.21.170 a mx include:_spf.google.com include:topcent.com.vn ... | ||||||
| SOA | ns3.nina.vnhostmaster@topcent.com.vn 2026-01-27 #6 | ||||||
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=2022708594 | ||||||
Subdomains
Same first word
Similar names
ptcnote.com |
coptent.co.jp |
potentc.com |
tecnopt.com |
pencott.com |
coptent.com |
coptnet.co.uk |
topcnet.com |
tecnopt.com.ph |
tecpont.com.br |
tpconet.com |
pcotten.com |
topcnet.net |
DNS History
8 records (8 active, 0 former)
●NSns1.dotvndns.vn2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 00:12:26
●NSns2.dotvndns.vn2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 00:12:26
●NSns3.dotvndns.vn2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 00:12:26
●NSns4.dotvndns.vn2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 00:12:26
●NSnsbak.dotvndns.com2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 00:12:26
●MXmail.topcent.com.vn2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 00:12:26
●A103.82.21.1702026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 00:12:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| topcent.com.vn | nsbak.dotvndns.com, ns3.dotvndns.vn, ns1.dotvndns.vn, ns2.dotvndns.vn... | - |
✅ Authoritative Response
Server:222.255.121.247
NS records: nsbak.dotvndns.com, ns3.dotvndns.vn, ns1.dotvndns.vn, ns2.dotvndns.vn, ns4.dotvndns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for topcent.com.vn (unsigned zone)
⏱️ Timing
Total: 1986ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.82.21.170 |
| NS | 4 | ns2.dotvndns.vn, ns1.dotvndns.vn... |
| MX | 1 | mail.topcent.com.vn (pri: 10) |
| TXT | 1 | v=spf1 ip4:103.82.21.170 a mx include:_s |
| SOA | 1 | ns3.nina.vn hostmaster.topcent.com.vn |
Analysis
Hierarchy
topcent.com.vn is a parent of www.topcent.com.vn, a.topcent.com.vn and mail.topcent.com.vn.
IP Addresses
topcent.com.vn points to a single IP number: 103.82.21.170.
other host names for instance mail.hotroantoan.com.vn, www.hamstermiendathua.vn, mail.phongkhammat.com, chaykieudam.com and toancaupumps.com share IP numbers with topcent.com.vn.
Name Servers
topcent.com.vn is delegated to six name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn, ns4.dotvndns.vn and ns3.nina.vn.
topcent.com.vn at least partially shares name servers with other domains, for instance cctv.net.vn, gasbinhminh.com.vn, ots-d.com, khanran.com.vn and happyland.com.vn.
These name servers are commonly used alongside the name servers ns1.pavietnam.vn, ns1.nina.vn, ns2.nina.vn, ns2.pavietnam.vn and nsbak.pavietnam.net.
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
Host names with one IP number
ns3.dotvndns.vn points to 112.213.89.22
ns3.nina.vn points to 112.213.89.22
Host names that point to 112.213.89.22
nsbak.dotvndns.com, ns3.dotvndns.vn and ns3.nina.vn
Mail Servers
topcent.com.vn is handled by a single mail server, mail.topcent.com.vn.
Host name mail.topcent.com.vn points to IP address 103.82.21.170.