cosis.vn - robtex.com
cosis.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 115.73.213.29🇻🇳 VIETEL-AS-AP115.73.208.0/21 Proxy-registered route object | ||||||
| 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 | ns-bak.matbao.com ⚠️ Not in parent delegation | ||||||
| A | 35.198.246.158🇸🇬 Google35.198.240.0/20 | ||||||
| PTR | 158.246.198.35.bc.googleusercontent.com | ||||||
| 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 | pro205.emailserver.vn ⭐ | ||||||
| A | 103.110.129.205🇻🇳 AXYS-VN103.110.128.0/23 | ||||||
| PTR | pro205.emailserver.vn | ||||||
| TXT | v=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all | ||||||
| SOA | ns1.matbao.vnadmin@matbao.com 2026-03-05 #1 | ||||||
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=2030751976 | ||||||
Subdomains
www.cosis.vn |
Same first word
cosis.eu |
cosis.de |
cosis.edu.pk |
cosis.vn |
cosis.dk |
cosis.nu |
cosis.it |
cosis.cz |
cosis.cn |
cosis.mx |
cosis.com |
cosis.si |
cosis.net |
cosis.info |
Similar names
DNS History
5 records (5 active, 0 former)
●NSns-bak.matbao.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 16:27:36
●MXpro205.emailserver.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 16:27:36
●A115.73.213.292026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 16:27:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| cosis.vn | ns1.matbao.vn, ns2.matbao.vn | 2 records |
✅ Authoritative Response
Server:13.250.228.99
NS records: ns1.matbao.vn, ns2.matbao.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cosis.vn (unsigned zone)
⏱️ Timing
Total: 1304ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 115.73.213.29 |
| NS | 3 | ns-bak.matbao.com, ns1.matbao.vn... |
| MX | 1 | pro205.emailserver.vn (pri: 0) |
| TXT | 1 | v=spf1 mx include:emailserver.vn include |
| 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
cosis.vn is the parent of www.cosis.vn.
IP Addresses
cosis.vn points to IP number 115.73.213.29.
Other host names, for instance, thongkecantho.gso.gov.vn share IP numbers with cosis.vn.
Name Servers
The delegation for cosis.vn is handled by three name servers: ns-bak.matbao.com, ns1.matbao.vn and ns2.matbao.vn.
cosis.vn shares name servers with other domains at least partially, for example nhakhoahoanmy.vn, vaic.edu.vn, batdongsancangio.com.vn, rainsoft.vn and goodsteel.com.vn.
These name servers are commonly used with the name servers ns2.matbao.com and ns1.matbao.com.
Host names with two IPs:
Host name ns1.matbao.vn points to 13.250.228.99 and 103.110.128.60.
Host name ns2.matbao.vn points to 35.198.203.127 and 103.138.89.11.
Host names with one IP:
Host name ns-bak.matbao.com points to 35.198.246.158.
Mail Servers
cosis.vn is handled by a single mail server, pro205.emailserver.vn.
cosis.vn shares the same mail server setup as other domains, for instance hi1.vn, diengiadungphattai.com.vn, unistorevn.com, bkcs.vn and vienthongtiasang.vn.
cosis.vn shares some mail servers with other domains to some extent, for instance cuulongcorp.com.vn and nhomnamsung.com.vn.
pro205.emailserver.vn points to a single IP: 103.110.129.205.