oskool.vn - robtex.com
oskool.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 199.27.135.247🇻🇳 Cloudflare199.27.134.0/23 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| 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.oskool.vn ⭐ | ||||||
| TXT | v=spf1 mx include:199.27.135.247 -all | ||||||
| SOA | ns1.matbao.vnadmin@matbao.com 2025-07-03 #3 | ||||||
vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn | ||||||
| NS | b.dns-servers.vn | ||||||
| NS | c.dns-servers.vn | ||||||
| NS | d.dns-servers.vn | ||||||
| NS | e.dns-servers.vn | ||||||
| NS | f.dns-servers.vn | ||||||
| NS | g.dns-servers.vn | ||||||
| NS | h.dns-servers.vn | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2030756123 | ||||||
Subdomains
www.oskool.vn |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●MXmail.oskool.vn2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 21:21:34
●A199.27.135.2472026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 21:21:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| oskool.vn | ns2.matbao.vn, ns1.matbao.vn | 2 records |
✅ Authoritative Response
Server:103.138.89.11
NS records: ns2.matbao.vn, ns1.matbao.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for oskool.vn (unsigned zone)
⏱️ Timing
Total: 1495ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 199.27.135.247 |
| NS | 2 | ns2.matbao.vn, ns1.matbao.vn |
| MX | 1 | mail.oskool.vn (pri: 10) |
| TXT | 1 | v=spf1 mx include:199.27.135.247 -all |
| SOA | 1 | ns1.matbao.vn admin.matbao.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.matbao.vn, ns2.matbao.vn)
Analysis
Hierarchy
The parent of www.oskool.vn is oskool.vn.
IP Addresses
oskool.vn points to an IP address: 199.27.135.247.
other host names include lamme.shop, gomsubinhdinh.com, vania.com.vn, www.japanhome.vn and myphamhuetrinh.com; they share IP numbers with oskool.vn.
Name Servers
Two name servers ns1.matbao.vn and ns2.matbao.vn handle the delegation for oskool.vn.
oskool.vn shares the same name server setup as other domains, for instance ihz.vn, pkx.vn, adtglobal.vn, goldenlegenddiamondhotel.vn and alusilsilicone.vn.
oskool.vn at least partially shares name servers with other domains, for instance royaldl.vn, vespahcm.com, maynongnghiepkubota.net, mes.net.vn and saigonbartender.com.
These name servers are commonly used with 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
oskool.vn is handled by a single mail server, mail.oskool.vn.