stemx.edu.vn - robtex.com
stemx.edu.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.74.123.202🇻🇳 BKNS-AS-VN103.74.122.0/23 CNBKNS-VN | ||||||
| PTR | sv123202.bkns.vn | ||||||
| NS | ns1.matbao.vn ⭐ | ||||||
| A | 13.250.228.99🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix | ||||||
| PTR | ec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com | ||||||
| A | 103.110.128.60🇻🇳 AXYS-VN103.110.128.0/23 | ||||||
| NS | ns2.matbao.vn | ||||||
| A | 35.198.203.127🇸🇬 Google35.198.192.0/20 | ||||||
| PTR | 127.203.198.35.bc.googleusercontent.com | ||||||
| A | 103.138.89.11🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET | ||||||
| MX | mail.stemx.edu.vn ⭐ | ||||||
| TXT | v=spf1 mx include:14.225.53.136 -all | ||||||
| SOA | ns1.matbao.vnadmin@matbao.com 2024-08-02 #1 | ||||||
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=2018564749 | ||||||
Subdomains
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●MXmail.stemx.edu.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 23:03:38
●A103.74.123.2022026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 23:03:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| stemx.edu.vn | ns1.matbao.vn, ns2.matbao.vn | - |
✅ Authoritative Response
Server:103.138.89.11
NS records: ns1.matbao.vn, ns2.matbao.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for stemx.edu.vn (unsigned zone)
⏱️ Timing
Total: 5024ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.74.123.202 |
| NS | 2 | ns2.matbao.vn, ns1.matbao.vn |
| MX | 1 | mail.stemx.edu.vn (pri: 10) |
| TXT | 1 | v=spf1 mx include:14.225.53.136 -all |
| SOA | 1 | ns1.matbao.vn admin.matbao.com |
Analysis
Hierarchy
stemx.edu.vn is parent of mail.stemx.edu.vn, ftp.stemx.edu.vn and www.stemx.edu.vn.
IP Addresses
stemx.edu.vn points to a single IP: 103.74.123.202.
Other host names, for instance mail.2top.vn, veo3.ai.vn, pop.dailythuelaocai.vn, mail.yenlang360.vn and smtp.yenlang360.vn share IP numbers with stemx.edu.vn.
Name Servers
stemx.edu.vn's delegation is to two name servers ns1.matbao.vn and ns2.matbao.vn.
stemx.edu.vn shares the same name server configuration as other domains, such as sakuko.vn, viettelcx.com.vn, goodlifemedia.vn, vietsun.vn and lafontaine-restaurant.com.vn.
stemx.edu.vn at least partially shares its name servers with other domains, for instance oribe.com.vn, hanico.vn, intemi.vn, 251.2.78.112.in-addr.arpa and naviva.com.vn.
these name servers are commonly used with the name servers ns1.matbao.com, ns2.matbao.com, ns-bak.matbao.com, ns3.matbao.vn and ns4.matbao.vn.
Host names with two IP numbers: ns1.matbao.vn points to 13.250.228.99 and 103.110.128.60; ns2.matbao.vn points to 35.198.203.127 and 103.138.89.11
Mail Servers
stemx.edu.vn is served by a single mail server, mail.stemx.edu.vn.