speed.edu.vn - robtex.com
speed.edu.vn
edu.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=2018564935 | ||||||
Subdomains
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXsmtp81033.bkns.com.vn2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 03:38:40
●A103.74.122.82026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 03:38:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| speed.edu.vn | ns5.tenten.vn, ns6.tenten.vn, ns4.tenten.vn | - |
✅ Authoritative Response
Server:103.18.7.205
NS records: ns5.tenten.vn, ns6.tenten.vn, ns4.tenten.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for speed.edu.vn (unsigned zone)
⏱️ Timing
Total: 1889ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.74.122.8 |
| NS | 3 | NS4.TENTEN.vn, NS5.TENTEN.vn... |
| MX | 1 | smtp81033.bkns.com.vn (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.bkdata.vn ~all |
| SOA | 1 | ns4.tenten.vn hostmaster.speed.edu.vn |
Analysis
Hierarchy
speed.edu.vn is a parent of www.speed.edu.vn and mail.speed.edu.vn.
IP Addresses
speed.edu.vn points to a single IP address: 103.74.122.8.
Other host names such as viskaijapan.com, gdpt2018.edu.vn, aeevn.com, vibooks.vn and haiphongjsc.com.vn share IP numbers with speed.edu.vn.
Name Servers
speed.edu.vn is delegated to three name servers: ns4.tenten.vn, ns5.tenten.vn and ns6.tenten.vn.
At least part of the name servers for speed.edu.vn are shared with other domains, for instance hanoicit.vn, thietbivesinhonline.vn, gbic.vn, phukiencisco.vn and easternlumber.com.vn.
These name servers are often used together with ns1.tenten.vn, ns2.tenten.vn and ns3.tenten.vn.
Host names with two IP numbers:
ns4.tenten.vn points to 2404:f080:1101:302:a163:44:193:20 and 103.18.7.204
ns5.tenten.vn points to 2404:f080:1101:302:a163:44:193:21 and 103.18.7.205
ns6.tenten.vn points to 2404:f080:1101:302:a163:44:193:22 and 52.74.6.184
Mail Servers
The mail server for speed.edu.vn is smtp81033.bkns.com.vn.
speed.edu.vn uses the same mail server setup as other domains, for instance traderbell.com, tgo.vn, phucanltd.com, anhthaohotel.com and maychure.vn.
speed.edu.vn shares at least some mail servers with other domains, for example trungtammuasam.vn, chasequality.com, quangtanhoa.com, truongphatland.vn and abus.vn.
Host smtp81033.bkns.com.vn points to IP 103.48.81.33.