zstep.vn - robtex.com

zstep.vn

DNSSEC⚠️ Not signed
NSa.ns.hostvn.net
A185.136.96.112🇺🇸 CLOUDNSNET185.136.96.0/24 Cloud DNS Ltd
PTRa.ns.hostvn.net
A185.136.97.112CLOUDNSNET185.136.97.0/24 Cloud DNS Ltd
PTRa.ns.hostvn.net
NSb.ns.hostvn.net
A185.136.98.112🇺🇸 CLOUDNSNET185.136.98.0/24 Cloud DNS Ltd
PTRb.ns.hostvn.net
A185.136.99.112CLOUDNSNET185.136.99.0/24 Cloud DNS Ltd
PTRb.ns.hostvn.net
MXmail.zstep.vn
A118.27.48.67🇯🇵 GMO-INTERNET118.27.0.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRv118-27-48-67.dj6h.static.cnode.io
TXTv=spf1 ip4:118.27.48.67 ~all
SOAa.ns.hostvn.nethostmaster@hostvn.net 2025-11-11 #2

vn

DNSSEC🔒 Signed (DS record present)
NSdns-master.vnnic.vn
NSa.dns-servers.vn
NSb.dns-servers.vn
NSc.dns-servers.vn
NSd.dns-servers.vn
NSe.dns-servers.vn
NSf.dns-servers.vn
NSg.dns-servers.vn
NSh.dns-servers.vn
SOAdns-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.netb.ns.hostvn.netMXmail.zstep.vn
NSa.ns.hostvn.net2026-05-01 → 2026-07-29 · 2 obs
● 2026-05-01 14:59:32
● 2026-07-29 20:37:38
NSb.ns.hostvn.net2026-05-01 → 2026-07-29 · 2 obs
● 2026-05-01 14:59:32
● 2026-07-29 20:37:38
MXmail.zstep.vn2026-05-01 → 2026-07-29 · 2 obs
● 2026-05-01 14:59:32
● 2026-07-29 20:37:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vnc.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn...16 records
zstep.vnb.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

TypeCountSample Data
NS2b.ns.hostvn.net, a.ns.hostvn.net
MX1mail.zstep.vn (pri: 10)
TXT1v=spf1 ip4:118.27.48.67 ~all
SOA1a.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.