stepro.com.vn - robtex.com
stepro.com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.1.208.212🇻🇳 VTDC-AS-VN103.1.208.0/22 Proxy-registered route object | ||||||
| PTR | hl-lw07.viettelidc.com.vn | ||||||
| NS | vdc-hn01.vnn.vn ⭐ | ||||||
| A | 2001:ee0:3281::8🇻🇳 VTN-12001:ee0:3281::/48 | ||||||
| PTR | static.vnpt.vn | ||||||
| A | 203.162.0.11🇻🇳 VTN-1203.162.0.0/24 VNPT | ||||||
| PTR | vdc-hn01.vnn.vn | ||||||
| NS | hcm-server1.vnn.vn | ||||||
| A | 2001:ee0:3281:8000::8🇻🇳 VTN-12001:ee0:3281::/48 | ||||||
| PTR | static.vnpt.vn | ||||||
| A | 203.162.4.1🇻🇳 VTN-1203.162.4.0/23 VNPT | ||||||
| PTR | hcm-server1.vnn.vn | ||||||
| MX | webmail.stepro.com.vn ⭐ | ||||||
| A | 103.1.208.212🇻🇳 VTDC-AS-VN103.1.208.0/22 Proxy-registered route object | ||||||
| PTR | hl-lw07.viettelidc.com.vn | ||||||
| TXT | v=spf1 ip4:103.1.208.212/32 a mx ~all | ||||||
| SOA | vdc-hn01.vnn.vnpostmaster@vnn.vn 2019-05-17 #2 | ||||||
com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | b.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | c.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | d.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | e.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | f.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | g.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | h.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2022707494 | ||||||
Subdomains
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NShcm-server1.vnn.vn2019-12-21 → 2026-05-09 · 2 obs
● 2026-05-09 17:56:10
●MXwebmail.stepro.com.vn2019-12-21 → 2026-05-09 · 2 obs
● 2026-05-09 17:56:10
●A103.1.208.2122019-12-21 → 2026-05-09 · 2 obs
● 2026-05-09 17:56:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | h.dns-servers.vn, f.dns-servers.vn, a.dns-servers.vn, g.dns-servers.vn... | 16 records |
| stepro.com.vn | hcm-server1.vnn.vn, vdc-hn01.vnn.vn | - |
✅ Authoritative Response
Server:203.162.4.1
NS records: hcm-server1.vnn.vn, vdc-hn01.vnn.vn
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at vn: Error: DNS query timeout: 202.47.142.105 for DNSKEY vn
⏱️ Timing
Total: 4921ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.1.208.212 |
| NS | 2 | hcm-server1.vnn.vn, vdc-hn01.vnn.vn |
| MX | 1 | webmail.stepro.com.vn (pri: 10) |
| TXT | 1 | v=spf1 ip4:103.1.208.212/32 a mx ~all |
| SOA | 1 | vdc-hn01.vnn.vn postmaster.vnn.vn |
📌 Glue Records Collected
Total: 16
In-bailiwick: 16 (h.dns-servers.vn, g.dns-servers.vn, f.dns-servers.vn...)
Analysis
Hierarchy
stepro.com.vn is the parent of www.stepro.com.vn and webmail.stepro.com.vn.
IP Addresses
stepro.com.vn resolves to a single IP: 103.1.208.212.
Other host names, for instance www.viif.vn, mail.liguiping.newsky.edu.vn, hl-lw07.viettelidc.com.vn, gd.newsky.edu.vn and sdeylwww.tienghan.newsky.edu.vn share IP numbers with stepro.com.vn.
Name Servers
stepro.com.vn has two name servers: hcm-server1.vnn.vn and vdc-hn01.vnn.vn.
stepro.com.vn shares the same name server setup as other domains, for example vietdan.com.vn, 161.160.113.in-addr.arpa, ctin.vn, 65.160.113.in-addr.arpa and 167.161.113.in-addr.arpa.
Host names with two IP numbers:
hcm-server1.vnn.vn points to: 2001:ee0:3281:8000::8 and 203.162.4.1; vdc-hn01.vnn.vn points to: 2001:ee0:3281::8 and 203.162.0.11.
Mail Servers
stepro.com.vn is handled by a single mail server, webmail.stepro.com.vn.
Host name webmail.stepro.com.vn points to IP 103.1.208.212.