1stclass.vn - robtex.com
1stclass.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.252.248.83🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN | ||||||
| NS | ns3.azdigihost.com ⭐ ⚠️ Not in parent delegation | ||||||
| NS | ns3.azdigi.com ⚠️ Not in zone NS records | ||||||
| A | 45.252.248.5🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN | ||||||
| NS | ns4.azdigi.com ⚠️ Not in zone NS records | ||||||
| A | 103.221.222.220🇻🇳 AZDIGI-AS-VN103.221.220.0/22 AZDIGI-VN | ||||||
| NS | ns4.azdigihost.com ⚠️ Not in parent delegation | ||||||
| MX | 1stclass.vn ⭐ | ||||||
| A | 45.252.248.83🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN | ||||||
| SOA | ns3.azdigihost.comhosting-admin@azdigi.com 2026-04-16 #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=2030750096 | ||||||
MX for
1stclass.vn |
Subdomains
www.1stclass.vn |
Same first word
1stclass.co.in |
1stclass.sk |
1stclass.flights |
1stclass.cn |
1stclass.ca |
1stclass.ltd |
1stclass.com.vn |
1stclass.net |
1stclass.com.sa |
1stclass.co.jp |
1stclass.at |
1stclass.vn |
1stclass.uk.com |
1stclass.immo |
DNS History
6 records (6 active, 0 former)
●NSns3.azdigi.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 01:16:18
●NSns3.azdigihost.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 01:16:18
●NSns4.azdigi.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 01:16:18
●NSns4.azdigihost.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 01:16:18
●MX1stclass.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 01:16:18
●A45.252.248.832026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 01:16:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| 1stclass.vn | ns3.azdigi.com, ns4.azdigi.com | - |
✅ Authoritative Response
Server:45.252.248.5
NS records: ns3.azdigi.com, ns4.azdigi.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 1stclass.vn (unsigned zone)
⏱️ Timing
Total: 1414ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.252.248.83 |
| NS | 2 | ns4.azdigihost.com, ns3.azdigihost.com |
| MX | 1 | 1stclass.vn (pri: 0) |
| SOA | 1 | ns3.azdigihost.com hosting-admin.azdigi. |
Analysis
Hierarchy
1stclass.vn is the parent of www.1stclass.vn.
Mail Server Role
1stclass.vn serves as the mail server for 1stclass.vn.
IP Addresses
1stclass.vn points to IP number 45.252.248.83.
For instance, other host names husthai.vn, tuyensinhgiaoduc.edu.vn, konie.talkpro.edu.vn, www.namlongco.vn and webmail.talkpro.edu.vn share IP numbers with 1stclass.vn.
Name Servers
1stclass.vn is delegated to four name servers: ns3.azdigi.com, ns4.azdigi.com, ns3.azdigihost.com and ns4.azdigihost.com.
1stclass.vn shares name servers with other domains at least partially, for example centrehotel.vn, lovemathedu.vn, vac2025.com.vn, cuongbig.com and vinfastvfninhbinh.vn.
These name servers are commonly used with ns4azdigi.com, ns1.10-100-10-145.cprapid.com and ns2.10-100-10-145.cprapid.com.
Host names with one IP number:
ns3.azdigi.com points to: 45.252.248.5.
ns4.azdigi.com points to: 103.221.222.220.
Mail Servers
1stclass.vn is handled by a single mail server, 1stclass.vn.
1stclass.vn points to a single IP: 45.252.248.83.