qhc.vn - robtex.com
qhc.vn
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=2030772707 | ||||||
Subdomains
Same first word
qhc.com.au |
qhc.com.cn |
qhc.vn |
qhc.com |
qhc.nl |
qhc.cn |
qhc.fr |
qhc.de |
qhc.on.ca |
qhc.us |
qhc.co |
qhc.me |
qhc.eu |
qhc.ae |
qhc.mobi |
qhc.org |
qhc.ie |
qhc.ro |
Similar names
DNS History
9 records (9 active, 0 former)
●NSns1.dotvndns.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 13:57:32
●NSns1.pavietnam.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 13:57:32
●NSns2.dotvndns.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 13:57:32
●NSns2.pavietnam.vn2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 13:57:32
●NSnsbak.dotvndns.com2026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 13:57:32
●A115.75.51.1532026-05-01 → 2026-05-14 · 2 obs
● 2026-05-14 13:57:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| qhc.vn | nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn | 4 records |
✅ Authoritative Response
Server:112.213.89.22
NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for qhc.vn (unsigned zone)
⏱️ Timing
Total: 3826ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 115.75.51.153 |
| NS | 2 | ns2.pavietnam.vn, ns1.pavietnam.vn |
| MX | 3 | mx2.zoho.com (pri: 20), mx.zoho.com (pri: 10)... |
| TXT | 1 | v=spf1 include:zohomail.com ~all |
| SOA | 1 | ns1.pavietnam.vn hostmaster.qhc.vn |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.dotvndns.vn, ns1.dotvndns.vn, ns2.dotvndns.vn...)
Analysis
Hierarchy
qhc.vn is a parent of cloud.qhc.vn and my.qhc.vn.
IP Addresses
qhc.vn resolves to one IP number: 115.75.51.153.
Other host names such as cloud.qhc.vn and my.qhc.vn share IP numbers with qhc.vn.
Name Servers
qhc.vn is delegated to five name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns1.pavietnam.vn and ns2.pavietnam.vn.
qhc.vn at least partially shares name servers with other domains, for instance aneta.vn, mission.vn, aitech.vn, congchunglacviet.com and vethamquan.vn.
These name servers are commonly used with nsbak.pavietnam.net, ns3.dotvndns.vn and nsbak.dotvndns.vn.
Host names with two IP numbers
nsbak.dotvndns.com points to: 2406:9c80::9000:302 and 112.213.89.22
ns1.dotvndns.vn points to: 2406:9c80::66 and 112.213.89.3
ns2.dotvndns.vn points to: 2406:9c80::9000:111 and 222.255.121.247
ns1.pavietnam.vn points to: 2406:9c80::66 and 112.213.89.3
ns2.pavietnam.vn points to: 2406:9c80::9000:111 and 222.255.121.247
Host names pointing to 2406:9c80::66: ns1.dotvndns.vn and ns1.pavietnam.vn
Host names pointing to 112.213.89.3: ns1.dotvndns.vn and ns1.pavietnam.vn
Host names pointing to 2406:9c80::9000:111: ns2.dotvndns.vn and ns2.pavietnam.vn
Host names pointing to 222.255.121.247: ns2.dotvndns.vn and ns2.pavietnam.vn
Mail Servers
qhc.vn is handled by three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.
qhc.vn shares some mail servers with other domains, at least partially, for instance knoxinvestai.com, tinaunglwin.com, decentmart.com, dianhac.com and canela.cl.
Host names with a single IP:
mx2.zoho.com points to: 136.143.191.44.
mx3.zoho.com points to: 136.143.191.44.
mx.zoho.com points to: 136.143.191.44.
Host names that point to 136.143.191.44: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.