dongacorp.com - robtex.com
dongacorp.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.211.113.136🇻🇳 VTDC-AS-VN210.211.112.0/21 Proxy-registered route object | ||||||
| PTR | bd-slw03.viettelidc.com.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 | mail.dongacorp.com ⭐ | ||||||
| A | 210.211.113.136🇻🇳 VTDC-AS-VN210.211.112.0/21 Proxy-registered route object | ||||||
| PTR | bd-slw03.viettelidc.com.vn | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| SOA | nsbak.dotvndns.comhostmaster@dongacorp.com 2021-10-05 #5 | ||||||
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=1778413831 | ||||||
Subdomains
mail.dongacorp.com |
Same first word
dongacorp.com |
Similar names
DNS History
16 records (5 active, 11 former)
○NSdns011.b.register.com2015-05-20 → 2015-10-09 · 4 obs
● 2015-10-09 22:38:54
○ 2015-12-09 20:26:52
○ 2026-05-10 12:12:30
○NSdns036.b.register.com2015-12-09 → 2016-05-06 · 5 obs
● 2015-12-09 20:26:52
● 2016-05-06 15:37:20
○ 2026-05-08 07:25:14
○ 2026-05-10 12:12:30
○NSdns082.d.register.com2015-12-09 → 2016-05-06 · 5 obs
● 2015-12-09 20:26:52
● 2016-05-06 15:37:20
○ 2026-05-08 07:25:14
○ 2026-05-10 12:12:30
○NSdns090.c.register.com2015-05-20 → 2015-10-09 · 4 obs
● 2015-10-09 22:38:54
○ 2015-12-09 20:26:52
○ 2026-05-10 12:12:30
○NSdns177.d.register.com2015-05-20 → 2015-10-09 · 4 obs
● 2015-10-09 22:38:54
○ 2015-12-09 20:26:52
○ 2026-05-10 12:12:30
○NSdns226.a.register.com2015-12-09 → 2016-05-06 · 5 obs
● 2015-12-09 20:26:52
● 2016-05-06 15:37:20
○ 2026-05-08 07:25:14
○ 2026-05-10 12:12:30
○NSdns231.a.register.com2015-05-20 → 2015-10-09 · 4 obs
● 2015-10-09 22:38:54
○ 2015-12-09 20:26:52
○ 2026-05-10 12:12:30
○NSdns239.c.register.com2015-12-09 → 2016-05-06 · 5 obs
● 2015-12-09 20:26:52
● 2016-05-06 15:37:20
○ 2026-05-08 07:25:14
○ 2026-05-10 12:12:30
●NSns1.dotvndns.vn2026-05-08 → 2026-05-10 · 3 obs
● 2026-05-08 07:25:14
● 2026-05-10 12:12:30
●NSns2.dotvndns.vn2026-05-08 → 2026-05-10 · 3 obs
● 2026-05-08 07:25:14
● 2026-05-10 12:12:30
●NSnsbak.dotvndns.com2026-05-08 → 2026-05-10 · 3 obs
● 2026-05-08 07:25:14
● 2026-05-10 12:12:30
●MXmail.dongacorp.com2026-05-08 → 2026-05-10 · 3 obs
● 2026-05-08 07:25:14
● 2026-05-10 12:12:30
○MXmdpc1.maximail.vn2015-12-09 → 2016-05-06 · 5 obs
● 2015-12-09 20:26:52
● 2016-05-06 15:37:20
○ 2026-05-08 07:25:14
○ 2026-05-10 12:12:30
○MXms1.phamgiatech.vn2015-05-20 → 2015-10-09 · 4 obs
● 2015-10-09 22:38:54
○ 2015-12-09 20:26:52
○ 2026-05-10 12:12:30
●A210.211.113.1362026-05-08 → 2026-05-10 · 3 obs
● 2026-05-08 07:25:14
● 2026-05-10 12:12:30
○A42.117.1.562015-05-20 → 2017-06-09 · 4 obs
● 2017-06-09 13:19:48
○ 2026-05-08 07:25:14
○ 2026-05-10 12:12:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net... | - |
| dongacorp.com | nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn | 2 records |
✅ 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 dongacorp.com (unsigned zone)
⏱️ Timing
Total: 1990ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.211.113.136 |
| NS | 3 | ns1.dotvndns.vn, nsbak.dotvndns.com... |
| MX | 1 | mail.dongacorp.com (pri: 10) |
| TXT | 1 | v=spf1 a mx ~all |
| SOA | 1 | nsbak.dotvndns.com hostmaster.dongacorp. |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)
Analysis
Hierarchy
The parent of mail.dongacorp.com is dongacorp.com.
IP Addresses
dongacorp.com points to a single IP address: 210.211.113.136.
Other host names such as smtp.longbinh.edu.vn, suncar.vn, dblcompany.vn, ns1.tenten.vn.muahangmy4u.com and autoconfig.longbinh.edu.vn share IPs with dongacorp.com.
Name Servers
dongacorp.com is delegated to three name servers: nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.
dongacorp.com at least partially shares name servers with other domains, for example miquangsam.com, vnqrpay.vn, mamnonbaominh.edu.vn, link.vn and phuqui.net.
These name servers are often used with ns1.pavietnam.vn, ns3.dotvndns.vn, ns2.pavietnam.vn, nsbak.pavietnam.net and ns4.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
The mail.dongacorp.com mail server handles dongacorp.com.
mail.dongacorp.com points to a single IP number: 210.211.113.136.