37do.vn - robtex.com
37do.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.74.123.18🇻🇳 BKNS-AS-VN103.74.122.0/23 CNBKNS-VN | ||||||
| PTR | cp123018.bkns.com.vn | ||||||
| NS | ns1.bkdns.vn ⭐ | ||||||
| A | 2403:6a40:1:81::11:1🇻🇳 VNPT-AS-VN2403:6a40:1::/48 BKNS-VN | ||||||
| A | 103.48.81.11🇻🇳 VNPT-AS-VN103.48.80.0/22 BKNS-VN | ||||||
| PTR | ns1.bkdns.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 | ||||||
| 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 | mail.37do.vn ⭐ | ||||||
| A | 103.74.123.18🇻🇳 BKNS-AS-VN103.74.122.0/23 CNBKNS-VN | ||||||
| PTR | cp123018.bkns.com.vn | ||||||
| TXT | v=spf1 include:_spf.bkns.com.vn ~all | ||||||
| SOA | ns1.bkdns.vnhostmaster@37do.vn 2021-03-24 #11 | ||||||
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=2030774256 | ||||||
Subdomains
mail.37do.vn |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXmail.37do.vn2026-05-04 → 2026-05-14 · 2 obs
● 2026-05-14 22:24:44
●A103.74.123.182026-05-04 → 2026-05-14 · 2 obs
● 2026-05-14 22:24:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn... | - |
| 37do.vn | ns3.bkdns.vn, ns2.bkdns.vn, ns1.bkdns.vn | 3 records |
✅ Authoritative Response
Server:103.74.123.250
NS records: ns3.bkdns.vn, ns2.bkdns.vn, ns1.bkdns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 37do.vn (unsigned zone)
⏱️ Timing
Total: 3498ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.74.123.18 |
| NS | 3 | ns2.bkdns.vn, ns1.bkdns.vn... |
| MX | 1 | mail.37do.vn (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.bkns.com.vn ~all |
| SOA | 1 | ns1.bkdns.vn hostmaster.37do.vn |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns3.bkdns.vn, ns2.bkdns.vn, ns1.bkdns.vn)
Analysis
Hierarchy
The parent of mail.37do.vn is 37do.vn.
IP Addresses
37do.vn points to a single IP address: 103.74.123.18.
Other host names such as mail.tulinh.vn, www.congnghexulynuocmet.com.vn, nhamatpho.info, novasky.vn and cpcalendars.novasky.vn share IPs with 37do.vn.
Name Servers
37do.vn is delegated to three name servers: ns1.bkdns.vn, ns2.bkdns.vn and ns3.bkdns.vn.
37do.vn at least partially shares name servers with other domains, for example peapros.com, dinhvisieunho.com, dayhat.vn, tsi.vn and chara.vn.
Host names with two IP numbers:
ns1.bkdns.vn points to 2403:6a40:1:81::11:1 and 103.48.81.11
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
Mail Servers
The mail.37do.vn mail server handles 37do.vn.
mail.37do.vn points to a single IP number: 103.74.123.18.