ditruyenhoc.com - robtex.com
ditruyenhoc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.74.121.90🇻🇳 BKNS-AS-VN103.74.120.0/23 BKNS-VN | ||||||
| NS | ns1.chinesevietnam.com ⭐ | ||||||
| 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.chinesevietnam.com | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| TXT | v=spf1 include:_spf.google.com ~all | ||||||
| SOA | ns1.chinesevietnam.comhostmaster@ditruyenhoc.com 2025-11-24 #31 | ||||||
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=1778542686 | ||||||
Subdomains
www.ditruyenhoc.com |
Same first word
ditruyenhoc.com |
DNS History
13 records (3 active, 10 former)
●NSns1.chinesevietnam.com2015-11-12 → 2026-05-12 · 5 obs
○ 2016-02-05 19:40:20
○ 2017-05-16 10:16:00
● 2026-02-23 00:05:08
● 2026-05-12 00:04:30
○NSns1.dotvndns.vn2016-02-05 → 2017-05-16 · 7 obs
● 2016-02-05 19:40:20
● 2016-04-30 17:19:12
○ 2016-11-03 17:38:12
● 2017-05-16 10:16:00
○ 2026-02-23 00:05:08
○ 2026-05-12 00:04:30
●NSns2.chinesevietnam.com2015-11-12 → 2026-05-12 · 5 obs
○ 2016-02-05 19:40:20
○ 2017-05-16 10:16:00
● 2026-02-23 00:05:08
● 2026-05-12 00:04:30
○NSns2.dotvndns.vn2016-02-05 → 2017-05-16 · 5 obs
● 2016-02-05 19:40:20
● 2017-05-16 10:16:00
○ 2026-02-23 00:05:08
○ 2026-05-12 00:04:30
○MXalt1.aspmx.l.google.com2016-02-05 → 2017-05-16 · 4 obs
● 2017-05-16 10:16:00
○ 2026-02-23 00:05:08
○ 2026-05-12 00:04:30
○MXalt2.aspmx.l.google.com2016-02-05 → 2017-05-16 · 4 obs
● 2017-05-16 10:16:00
○ 2026-02-23 00:05:08
○ 2026-05-12 00:04:30
○MXalt3.aspmx.l.google.com2016-02-05 → 2017-05-16 · 4 obs
● 2017-05-16 10:16:00
○ 2026-02-23 00:05:08
○ 2026-05-12 00:04:30
○MXalt4.aspmx.l.google.com2016-02-05 → 2017-05-16 · 4 obs
● 2017-05-16 10:16:00
○ 2026-02-23 00:05:08
○ 2026-05-12 00:04:30
○MXaspmx.l.google.com2016-02-05 → 2017-05-16 · 4 obs
● 2017-05-16 10:16:00
○ 2026-02-23 00:05:08
○ 2026-05-12 00:04:30
○A103.1.209.512015-11-12 → 2015-11-12 · 3 obs
○ 2016-02-05 19:40:20
○ 2026-05-12 00:04:30
●A103.74.121.902026-02-23 → 2026-05-12 · 3 obs
● 2026-02-23 00:05:08
● 2026-05-12 00:04:30
○A128.199.178.822016-11-03 → 2017-05-16 · 5 obs
● 2016-11-03 17:38:12
● 2017-05-16 10:16:00
○ 2026-02-23 00:05:08
○ 2026-05-12 00:04:30
○A159.203.72.482016-02-05 → 2016-04-30 · 5 obs
● 2016-02-05 19:40:20
● 2016-04-30 17:19:12
○ 2016-11-03 17:38:12
○ 2026-05-12 00:04:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net... | - |
| ditruyenhoc.com | ns1.chinesevietnam.com, ns2.chinesevietnam.com | 2 records |
✅ Authoritative Response
Server:222.255.121.247
NS records: ns1.chinesevietnam.com, ns2.chinesevietnam.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ditruyenhoc.com (unsigned zone)
⏱️ Timing
Total: 585ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.74.121.90 |
| NS | 2 | ns1.chinesevietnam.com, ns2.chinesevietnam.com |
| TXT | 1 | v=spf1 include:_spf.google.com ~all |
| SOA | 1 | ns1.chinesevietnam.com hostmaster.ditruy |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.chinesevietnam.com, ns2.chinesevietnam.com)
Analysis
Hierarchy
The parent of www.ditruyenhoc.com is ditruyenhoc.com.
IP Addresses
ditruyenhoc.com points to an IP address: 103.74.121.90.
other host names include mvd.cuacuon24.com, yklwvwebdisk.vi.hocngoaingu.edu.vn, webmail.vi.hocngoaingu.edu.vn, mailserver.tmdl.edu.vn and wbsubdomain.a.bb.ccc.dddd.webdisk.vi.hocngoaingu.edu.vn; they share IP numbers with ditruyenhoc.com.
Name Servers
Two name servers ns1.chinesevietnam.com and ns2.chinesevietnam.com handle the delegation for ditruyenhoc.com.
ditruyenhoc.com uses the same name server setup as other domains, including lyconguan.edu.vn, sachtiengnhat.com and tuhoctiengtrung.net.
ditruyenhoc.com at least partially shares name servers with other domains, for instance mayphatdienthanglong.vn, tiengtrungonline.com, cacanhthaihoa.com, thinhlong.com and chinesetest.online.
these name servers are commonly used alongside the name servers ns3.chinesevietnam.com, nsbak.dotvndns.com, ns1.pavietnam.vn, ns1.dotvndns.vn, ns2.dotvndns.vn, joyce.ns.cloudflare.com and steven.ns.cloudflare.com.
Host names with one IP:
ns1.chinesevietnam.com points to: 112.213.89.3
ns2.chinesevietnam.com points to: 222.255.121.247