zstep.vn - robtex.com
zstep.vn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.ns.hostvn.net ⭐ | ||||||
| A | 185.136.96.112🇺🇸 CLOUDNSNET185.136.96.0/24 Cloud DNS Ltd | ||||||
| PTR | a.ns.hostvn.net | ||||||
| A | 185.136.97.112CLOUDNSNET185.136.97.0/24 Cloud DNS Ltd | ||||||
| PTR | a.ns.hostvn.net | ||||||
| NS | b.ns.hostvn.net | ||||||
| A | 185.136.98.112🇺🇸 CLOUDNSNET185.136.98.0/24 Cloud DNS Ltd | ||||||
| PTR | b.ns.hostvn.net | ||||||
| A | 185.136.99.112CLOUDNSNET185.136.99.0/24 Cloud DNS Ltd | ||||||
| PTR | b.ns.hostvn.net | ||||||
| MX | mail.zstep.vn ⭐ | ||||||
| A | 118.27.48.67🇯🇵 GMO-INTERNET118.27.0.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | v118-27-48-67.dj6h.static.cnode.io | ||||||
| TXT | v=spf1 ip4:118.27.48.67 ~all | ||||||
| SOA | a.ns.hostvn.nethostmaster@hostvn.net 2025-11-11 #2 | ||||||
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 2031-05-27 #37 | ||||||
Subdomains
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSa.ns.hostvn.net2026-05-01 → 2026-07-29 · 2 obs
● 2026-07-29 20:37:38
●NSb.ns.hostvn.net2026-05-01 → 2026-07-29 · 2 obs
● 2026-07-29 20:37:38
●MXmail.zstep.vn2026-05-01 → 2026-07-29 · 2 obs
● 2026-07-29 20:37:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn... | 16 records |
| zstep.vn | b.ns.hostvn.net, a.ns.hostvn.net | - |
✅ Authoritative Response
Server:185.136.97.112
NS records: b.ns.hostvn.net, a.ns.hostvn.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for zstep.vn (unsigned zone)
⏱️ Timing
Total: 1029ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | b.ns.hostvn.net, a.ns.hostvn.net |
| MX | 1 | mail.zstep.vn (pri: 10) |
| TXT | 1 | v=spf1 ip4:118.27.48.67 ~all |
| SOA | 1 | a.ns.hostvn.net hostmaster.hostvn.net |
📌 Glue Records Collected
Total: 16
In-bailiwick: 16 (c.dns-servers.vn, c.dns-servers.vn, a.dns-servers.vn...)
Analysis
Hierarchy
zstep.vn has four subdomains: mail.zstep.vn, dev.zstep.vn, dev3.zstep.vn and socket.zstep.vn.
Name Servers
zstep.vn has two authoritative name servers — a.ns.hostvn.net and b.ns.hostvn.net.
zstep.vn shares its name server setup with other domains, including lacdau.com, ngockhai.com, thangmayhanoi.com.vn and two others.
zstep.vn has some name servers in common with other domains such as thorakaovn.com, ducviet.edu.vn and tscservices.vn
These name servers tend to appear in combination with the name servers ns1.anycast.vn, ns2.anycast.vn, ns3.anycast.vn and ns4.anycast.vn.
Both a.ns.hostvn.net and b.ns.hostvn.net have two IP addresses each. a.ns.hostvn.net resolves to 185.136.96.112 and 185.136.97.112; b.ns.hostvn.net resolves to 185.136.98.112 and 185.136.99.112.
Mail Servers
zstep.vn has one mail server: mail.zstep.vn.
mail.zstep.vn points to one IP number — 118.27.48.67.