cflt.edu.vn - robtex.com
cflt.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=2018586970 | ||||||
Subdomains
www.cflt.edu.vn |
Same first word
Similar names
DNS History
10 records (8 active, 2 former)
●MXalt1.aspmx.l.google.com2026-04-30 → 2026-08-12 · 2 obs
● 2026-08-12 05:25:54
●MXalt2.aspmx.l.google.com2026-04-30 → 2026-08-12 · 2 obs
● 2026-08-12 05:25:54
●MXalt3.aspmx.l.google.com2026-04-30 → 2026-08-12 · 2 obs
● 2026-08-12 05:25:54
●MXalt4.aspmx.l.google.com2026-04-30 → 2026-08-12 · 2 obs
● 2026-08-12 05:25:54
●MXaspmx.l.google.com2026-04-30 → 2026-08-12 · 2 obs
● 2026-08-12 05:25:54
●A103.138.88.662026-08-12 → 2026-08-12 · 3 obs
● 2026-08-12 05:25:52
● 2026-08-12 05:25:54
○A112.78.2.152026-04-30 → 2026-04-30 · 3 obs
○ 2026-08-12 05:25:52
○ 2026-08-12 05:25:54
○A2405:7bc0:0:2::20152026-04-30 → 2026-04-30 · 3 obs
○ 2026-08-12 05:25:52
○ 2026-08-12 05:25:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | 15 records |
| cflt.edu.vn | ns1.matbao.vn, ns2.matbao.vn | - |
✅ Authoritative Response
Server:13.250.228.99
NS records: ns1.matbao.vn, ns2.matbao.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cflt.edu.vn (unsigned zone)
⏱️ Timing
Total: 2125ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.138.88.66 |
| NS | 2 | ns1.matbao.vn, ns2.matbao.vn |
| MX | 5 | ALT3.ASPMX.L.GOOGLE.COM (pri: 10), ALT2.ASPMX.L.GOOGLE.COM (pri: 5)... |
| TXT | 1 | google-site-verification=cHw-Gt3dhVt6vww |
| SOA | 1 | ns1.matbao.vn admin.matbao.com |
📌 Glue Records Collected
Total: 15
In-bailiwick: 15 (a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn...)
Analysis
Hierarchy
cflt.edu.vn serves as the parent of www.cflt.edu.vn.
IP Addresses
cflt.edu.vn directs to one IP number, which is 103.138.88.66.
Among the host names that share IP numbers with cflt.edu.vn are botuctaylai.vn, nghiaoto.vn, hatahotel.vn and two others.
Name Servers
cflt.edu.vn is delegated to two name servers: ns1.matbao.vn and ns2.matbao.vn.
cflt.edu.vn has the same name server delegation as a number of other domains, such as hyundai-lamkinh.vn, htdvietnam.vn, oplaw.vn and two more.
cflt.edu.vn has at least partial name server overlap with other domains, such as 01minh.com, kiwipaint.vn, cteg.vn and two others.
ns1.matbao.com, ns2.matbao.com and ns-bak.matbao.com — plus 6 other name servers — are commonly paired with these name servers.
ns1.matbao.vn and ns2.matbao.vn each resolve to two IP addresses: ns1.matbao.vn points to 13.250.228.99 and 103.110.128.60, while ns2.matbao.vn points to 35.198.203.127 and 103.138.89.11.
Mail Servers
cflt.edu.vn is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
cflt.edu.vn shares at least some of its mail servers with other domains — for example hellofacet.com, ns500734.ns500699.ns500699.ns500734.ns500693.ns500734.ns500693.ns500693.ns500699.ns500588.ns500588.ns500588.ns500588.ns500612.ns500588.dtrkdll.com, ns500731.ns500754.ns500731.ns500704.ns500731.ns500671.ns500153.tenderladiesbz.com and two more.
It is common to find these mail servers paired with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 more.
Hosts with two IP numbers each:
aspmx.l.google.com points to 172.253.63.26 and 2607:f8b0:4004:c21::1b.
alt1.aspmx.l.google.com points to 192.178.234.27 and 2800:3f0:4003:c14::1b.
alt2.aspmx.l.google.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com points to 192.178.223.27 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com points to 172.253.157.27 and 2a00:1450:400c:c23::1b.