db.edu.vn - robtex.com
db.edu.vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 171.229.5.196🇻🇳 VIETEL-AS-AP171.229.0.0/21 Proxy-registered route object | ||||||
| NS | dnssec2.pavietnam.vn ⭐ | ||||||
| A | 2406:9c80::9000:d202🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| A | 222.255.121.214🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | dnssec2.dotvndns.vn | ||||||
| NS | dnssec1.pavietnam.vn | ||||||
| A | 2406:9c80::9000:202🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| A | 112.213.82.186🇻🇳 SUPERDATA112.213.82.0/24 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 | dnssec1.dotvndns.vn | ||||||
| NS | dnssecbak.pavietnam.net | ||||||
| A | 2406:9c80::9000:d203🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| A | 203.162.78.50🇻🇳 VDC203.162.78.0/24 VNPT | ||||||
| PTR | ci78-50.netnam.vn | ||||||
| TXT | google-site-verification=4OSL5-fnLEj7ab_okbGtcypW2r4CfahKAUdjWw1NBnk | ||||||
| SOA | dnssec2.pavietnam.vnhostmaster@db.edu.vn 2026-05-05 #11 | ||||||
edu.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=2018564056 | ||||||
Subdomains
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●NSdnssec1.pavietnam.vn2026-04-30 → 2026-05-07 · 2 obs
● 2026-05-07 07:19:20
●NSdnssec2.pavietnam.vn2026-04-30 → 2026-05-07 · 2 obs
● 2026-05-07 07:19:20
●NSdnssecbak.pavietnam.net2026-04-30 → 2026-05-07 · 2 obs
● 2026-05-07 07:19:20
○A171.229.11.1082026-04-30 → 2026-05-01 · 4 obs
● 2026-05-01 02:43:40
○ 2026-05-04 05:47:36
○ 2026-05-07 07:19:20
○A171.229.4.2222026-05-04 → 2026-05-04 · 4 obs
● 2026-05-04 05:47:36
○ 2026-05-05 05:46:52
○ 2026-05-07 07:19:20
●A171.229.5.1962026-05-05 → 2026-05-07 · 3 obs
● 2026-05-05 05:46:52
● 2026-05-07 07:19:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | h.dns-servers.vn, g.dns-servers.vn, f.dns-servers.vn, c.dns-servers.vn... | - |
| db.edu.vn | dnssec1.pavietnam.vn, dnssec2.pavietnam.vn, dnssecbak.pavietnam.net | - |
✅ Authoritative Response
Server:222.255.121.214
NS records: dnssec1.pavietnam.vn, dnssec2.pavietnam.vn, dnssecbak.pavietnam.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2627ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 171.229.5.196 |
| NS | 3 | dnssecbak.pavietnam.net, dnssec2.pavietnam.vn... |
| TXT | 1 | google-site-verification=4OSL5-fnLEj7ab_ |
| SOA | 1 | dnssec2.pavietnam.vn hostmaster.db.edu.v |
Analysis
Hierarchy
db.edu.vn is a parent of ptdtbtthcsphinhgiang.db.edu.vn, ptdtbtthcspuhong.db.edu.vn, ptdtbtthkeolom.db.edu.vn, mnsulu.db.edu.vn, mnsadung.db.edu.vn and a few other host names.
IP Addresses
db.edu.vn points to a single IP address: 171.229.5.196.
Other host names such as mnpunhi.db.edu.vn, ptdtbtthcssuoilu.db.edu.vn, ptdtbtthcssadung.db.edu.vn, ptdtbtthcsphinhgiang.db.edu.vn and ptdtbtthcspuhong.db.edu.vn share IPs with db.edu.vn.
Name Servers
db.edu.vn is delegated to three name servers: dnssecbak.pavietnam.net, dnssec1.pavietnam.vn and dnssec2.pavietnam.vn.
db.edu.vn at least partially shares name servers with other domains, for example iceinvest.vn, nhoquetravel.com, fct.vn, hanisa.org and nexvit.vn.
These name servers are often used with ns1.dotvndns.vn, ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.dotvndns.com and ns2.dotvndns.vn.
Host names with two IP numbers:
dnssecbak.pavietnam.net points to 2406:9c80::9000:d203 and 203.162.78.50
dnssec1.pavietnam.vn points to 2406:9c80::9000:202 and 112.213.82.186
dnssec2.pavietnam.vn points to 2406:9c80::9000:d202 and 222.255.121.214