dev.vn - robtex.com
dev.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.101.15.248🇺🇸 SOFTLAYER208.101.0.0/18 -4-2 | ||||||
| PTR | f8.0f.65d0.ip4.static.sl-reverse.com | ||||||
| NS | ns1.zonedns.vn ⭐ | ||||||
| A | 2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix | ||||||
| A | 64.176.84.220🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix | ||||||
| PTR | ns1.zonedns.vn | ||||||
| NS | ns2.zonedns.vn | ||||||
| A | 2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix | ||||||
| A | 103.176.178.51🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN | ||||||
| NS | ns3.zonedns.vn | ||||||
| A | 2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN | ||||||
| A | 103.28.36.30🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| MX | dev.vn ⭐ | ||||||
| A | 208.101.15.248🇺🇸 SOFTLAYER208.101.0.0/18 -4-2 | ||||||
| PTR | f8.0f.65d0.ip4.static.sl-reverse.com | ||||||
| SOA | ns1.zonedns.vnroot@dev.vn 2020-05-02 #6 | ||||||
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=2030836799 | ||||||
MX for
dev.vn |
Subdomains
www.dev.vn |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
○NSdns1.fpt.vn2015-08-27 → 2016-12-27 · 4 obs
● 2016-12-27 15:33:16
○ 2026-02-26 23:22:52
○ 2026-06-01 00:15:04
○NSdns11.fpt.vn2015-08-27 → 2016-12-27 · 4 obs
● 2016-12-27 15:33:16
○ 2026-02-26 23:22:52
○ 2026-06-01 00:15:04
○NSdns12.fpt.vn2015-08-27 → 2016-12-27 · 4 obs
● 2016-12-27 15:33:16
○ 2026-02-26 23:22:52
○ 2026-06-01 00:15:04
○NSdns2.fpt.vn2015-08-27 → 2016-12-27 · 4 obs
● 2016-12-27 15:33:16
○ 2026-02-26 23:22:52
○ 2026-06-01 00:15:04
○NSisp-dns1.fpt.vn2015-08-27 → 2016-12-27 · 4 obs
● 2016-12-27 15:33:16
○ 2026-02-26 23:22:52
○ 2026-06-01 00:15:04
●NSns1.zonedns.vn2026-02-26 → 2026-06-01 · 3 obs
● 2026-02-26 23:22:52
● 2026-06-01 00:15:04
●NSns2.zonedns.vn2026-02-26 → 2026-06-01 · 3 obs
● 2026-02-26 23:22:52
● 2026-06-01 00:15:04
●NSns3.zonedns.vn2026-02-26 → 2026-06-01 · 3 obs
● 2026-02-26 23:22:52
● 2026-06-01 00:15:04
●MXdev.vn2026-02-26 → 2026-06-01 · 2 obs
● 2026-06-01 00:15:04
●A208.101.15.2482015-08-27 → 2026-06-01 · 2 obs
● 2026-06-01 00:15:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| dev.vn | ns3.zonedns.vn, ns2.zonedns.vn, ns1.zonedns.vn | - |
✅ Authoritative Response
Server:103.176.178.51
NS records: ns3.zonedns.vn, ns2.zonedns.vn, ns1.zonedns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dev.vn (unsigned zone)
⏱️ Timing
Total: 2024ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.101.15.248 |
| NS | 3 | ns1.zonedns.vn, ns3.zonedns.vn... |
| MX | 1 | dev.vn (pri: 10) |
| SOA | 1 | ns1.zonedns.vn root.dev.vn |
Analysis
Hierarchy
www.dev.vn is a subdomain of dev.vn.
Mail Server Role
The MX record for dev.vn points back to dev.vn — it is its own mail server.
IP Addresses
dev.vn directs to one IP number, which is 208.101.15.248.
Other host names, such as f8.0f.65d0.ip4.static.sl-reverse.com, share IP numbers with dev.vn.
Name Servers
dev.vn is delegated to three name servers: ns1.zonedns.vn, ns2.zonedns.vn and ns3.zonedns.vn.
The name servers of dev.vn overlap at least partially with those of other domains — among them ivs.vn, medicbaclieu.vn, nonket.vn and two more.
These name servers are routinely co-deployed with the name servers ns4.zonedns.vn, ns2008.nhanhoa.com.vn, ns2009.nhanhoa.com.vn and two others.
Each of the three hosts ns1.zonedns.vn, ns2.zonedns.vn and ns3.zonedns.vn points to two IP numbers: ns1.zonedns.vn points to 64.176.84.220 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33; ns2.zonedns.vn points to 103.176.178.51 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33; ns3.zonedns.vn points to 103.28.36.30 and 2001:df1:3200::15.
ns1.zonedns.vn and ns2.zonedns.vn are host names that each point to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 IP addresses.
Mail Servers
The MX record for dev.vn points to a single mail server: dev.vn.
dev.vn resolves to a single IP number: 208.101.15.248.