dcheck.vn - robtex.com
dcheck.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.57.221.79🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN | ||||||
| NS | ns1.bkdns.vn ⭐ | ||||||
| A | 2403:6a40:1:81::11:1🇻🇳 VNPT-AS-VN2403:6a40:1::/48 BKNS-VN | ||||||
| NS | ns2.bkdns.vn | ||||||
| A | 2403:6a40:2000:247::220:1🇻🇳 BKNS-AS-VN2403:6a40:2000::/36 BKNS-VN | ||||||
| A | 103.3.247.220🇻🇳 BKNS-AS-VN103.3.247.0/24 VDATA-VN | ||||||
| PTR | static.bkdata.vn | ||||||
| NS | ns3.bkdns.vn ⚠️ Not in parent delegation | ||||||
| A | 2403:6a40:0:123::250:1🇻🇳 BKNS-AS-VN2403:6a40::/48 BKNS-VN BKNS-VN | ||||||
| PTR | ns3.bkdns.vn | ||||||
| A | 103.74.123.250🇻🇳 BKNS-AS-VN103.74.122.0/23 CNBKNS-VN | ||||||
| PTR | ns3.bkdns.vn | ||||||
| MX | mx1.onemail.vn ⭐ | ||||||
| A | 103.216.116.14🇻🇳 VNPT-AS-VN103.216.116.0/22 INETSOFT-VN | ||||||
| PTR | mx1.smtp-in.onemail.vn | ||||||
| MX | mx2.onemail.vn ⭐ | ||||||
| A | 103.72.96.29🇻🇳 INETSOFT-AS-VN103.72.96.0/22 INETSOFT-VN | ||||||
| PTR | mx2.smtp-in.onemail.vn | ||||||
| MX | mx3.onemail.vn ⭐ | ||||||
| A | 103.56.162.10🇻🇳 VNPT-AS-VN103.56.160.0/22 INETSOFT-VN | ||||||
| PTR | mx3.smtp-in.onemail.vn | ||||||
| MX | mail.dcheck.vn(10) | ||||||
| A | 103.57.220.204🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN | ||||||
| TXT | v=spf1 include:_spf.onemail.vn ~all | ||||||
| TXT | v=spf1 include:_spf.bkns.com.vn ~all | ||||||
| SOA | ns1.bkdns.vnhostmaster@dcheck.vn 2023-06-19 #13 | ||||||
vn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2030751702 | ||||||
Subdomains
Same first word
Similar names
DNS History
8 records (8 active, 0 former)
●MXmail.dcheck.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 13:11:46
●MXmx1.onemail.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 13:11:46
●MXmx2.onemail.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 13:11:46
●MXmx3.onemail.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 13:11:46
●A103.57.221.792026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 13:11:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| dcheck.vn | ns2.bkdns.vn, ns1.bkdns.vn | 2 records |
✅ Authoritative Response
Server:103.48.81.11
NS records: ns2.bkdns.vn, ns1.bkdns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dcheck.vn (unsigned zone)
⏱️ Timing
Total: 1048ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.57.221.79 |
| NS | 3 | ns1.bkdns.vn, ns3.bkdns.vn... |
| MX | 4 | mx2.onemail.vn (pri: 0), mx3.onemail.vn (pri: 0)... |
| TXT | 2 | v=spf1 include:_spf.onemail.vn ~all, v=spf1 include:_spf.bkns.com.vn ~all |
| SOA | 1 | ns1.bkdns.vn hostmaster.dcheck.vn |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.bkdns.vn, ns1.bkdns.vn)
Analysis
Hierarchy
dcheck.vn is a parent of www.dcheck.vn and mail.dcheck.vn.
IP Addresses
dcheck.vn resolves to one IP number: 103.57.221.79.
Other host names, for instance thanhdattech.net, cpanel.sathach.vn, www.bietthuanquy.vn, dkal.com.vn and cpanel.xeghepbacninhhanoi.com.vn share IP numbers with dcheck.vn.
Name Servers
dcheck.vn is delegated to three name servers: ns1.bkdns.vn, ns2.bkdns.vn and ns3.bkdns.vn.
dcheck.vn at least partially shares name servers with other domains, including kangenviet.vn, vmigroup.vn, batchenang.com.vn, doigio.vn and indayroi.com.
Hosts with two IPs:
ns2.bkdns.vn points to 2403:6a40:2000:247::220:1 and 103.3.247.220.
ns3.bkdns.vn points to 2403:6a40:0:123::250:1 and 103.74.123.250.
Host with one IP:
ns1.bkdns.vn points to 2403:6a40:1:81::11:1.
Mail Servers
dcheck.vn is handled by four mail servers: mail.dcheck.vn, mx1.onemail.vn, mx2.onemail.vn and mx3.onemail.vn.
dcheck.vn shares at least some mail servers with other domains, for example viettronics.edu.vn, mepevent.vn, easycheck.io.vn, goldenbeetravel.com.vn and tinlegal.vn.
Host names with one IP number:
mail.dcheck.vn points to 103.57.220.204; mx1.onemail.vn points to 103.216.116.14; mx2.onemail.vn points to 103.72.96.29; mx3.onemail.vn points to 103.56.162.10.