intertu.edu.vn - robtex.com
intertu.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=2018565377 | ||||||
Subdomains
Same first word
Similar names
DNS History
15 records (11 active, 4 former)
●NSchan.ns.cloudflare.com2026-04-30 → 2026-05-12 · 3 obs
● 2026-04-30 23:19:00
● 2026-05-12 14:40:22
●NSmarek.ns.cloudflare.com2026-04-30 → 2026-05-12 · 3 obs
● 2026-04-30 23:19:00
● 2026-05-12 14:40:22
○NSns.viettelidc.com.vn2018-05-11 → 2018-05-11 · 3 obs
○ 2026-04-30 23:19:00
○ 2026-05-12 14:40:22
○NSns1.viettelidc.com.vn2018-05-11 → 2018-05-11 · 3 obs
○ 2026-04-30 23:19:00
○ 2026-05-12 14:40:22
○NSns2.viettelidc.com.vn2018-05-11 → 2018-05-11 · 3 obs
○ 2026-04-30 23:19:00
○ 2026-05-12 14:40:22
●MXalt1.aspmx.l.google.com2018-05-11 → 2026-05-12 · 2 obs
● 2026-05-12 14:40:22
●MXalt2.aspmx.l.google.com2018-05-11 → 2026-05-12 · 2 obs
● 2026-05-12 14:40:22
●MXalt3.aspmx.l.google.com2018-05-11 → 2026-05-12 · 2 obs
● 2026-05-12 14:40:22
●MXalt4.aspmx.l.google.com2018-05-11 → 2026-05-12 · 2 obs
● 2026-05-12 14:40:22
●MXaspmx.l.google.com2018-05-11 → 2026-05-12 · 2 obs
● 2026-05-12 14:40:22
●A104.21.15.2322026-04-30 → 2026-05-12 · 3 obs
● 2026-04-30 23:19:00
● 2026-05-12 14:40:22
●A172.67.208.1552026-04-30 → 2026-05-12 · 3 obs
● 2026-04-30 23:19:00
● 2026-05-12 14:40:22
●A2606:4700:3034::ac43:d09b2026-04-30 → 2026-05-12 · 3 obs
● 2026-04-30 23:19:00
● 2026-05-12 14:40:22
●A2606:4700:3037::6815:fe82026-04-30 → 2026-05-12 · 3 obs
● 2026-04-30 23:19:00
● 2026-05-12 14:40:22
○A43.255.154.942018-05-11 → 2018-05-11 · 3 obs
○ 2026-04-30 23:19:00
○ 2026-05-12 14:40:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | h.dns-servers.vn, f.dns-servers.vn, a.dns-servers.vn, d.dns-servers.vn... | - |
| intertu.edu.vn | chan.ns.cloudflare.com, marek.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.202
NS records: chan.ns.cloudflare.com, marek.ns.cloudflare.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at vn: Error: DNS query timeout: 202.47.142.105 for DNSKEY vn
⏱️ Timing
Total: 4373ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.15.232, 172.67.208.155 |
| AAAA | 2 | 2606:4700:3034::ac43:d09b, 2606:4700:3037::6815:fe8 |
| NS | 2 | chan.ns.cloudflare.com, marek.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 1 | google-site-verification=AWWMBRgBLns21JW |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | chan.ns.cloudflare.com dns.cloudflare.co |
Analysis
Hierarchy
intertu.edu.vn is a parent of webmail.intertu.edu.vn, qlhv.intertu.edu.vn, www.intertu.edu.vn and talent.intertu.edu.vn.
IP Addresses
intertu.edu.vn points to four IP numbers: 2606:4700:3034::ac43:d09b, 2606:4700:3037::6815:fe8, 104.21.15.232 and 172.67.208.155.
Other host names, for instance aagmaal.eworkbox.com, s2.streamin.online, yangontyre.com.mm, directtoinfo.com and a1sewcraft.com share IP numbers with intertu.edu.vn.
Name Servers
intertu.edu.vn's delegation is to two name servers chan.ns.cloudflare.com and marek.ns.cloudflare.com.
intertu.edu.vn shares the same name server configuration as other domains, such as drugrug.eu.org, jab-journal.eu.org, datacenteredge.com, flydanecounty.eu.org and kamana-arabians.eu.org.
intertu.edu.vn at least partially shares its name servers with other domains, for instance sfgdbhgg.com, zizzoenterprises.com, rezka.re, ukmaturechats.com and xy17358.com.
These name servers are commonly used with merlin.ns.cloudflare.com, theo.ns.cloudflare.com and doug.ns.cloudflare.com.
Host names with six IP numbers:
chan.ns.cloudflare.com points to: 2606:4700:50::adf5:3a52, 2803:f800:50::6ca2:c052, 2a06:98c1:50::ac40:2052, 108.162.192.82, 172.64.32.82 and 173.245.58.82.
marek.ns.cloudflare.com points to: 2606:4700:58::adf5:3bca, 2803:f800:50::6ca2:c1ca, 2a06:98c1:50::ac40:21ca, 108.162.193.202, 172.64.33.202 and 173.245.59.202.
Mail Servers
Five mail servers handle intertu.edu.vn: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
intertu.edu.vn shares some mail servers with other domains, including pegulan.com.au, ns500768.ns500759.ns500736.ns500735.ns500698.ns500735.ns500735.ns500708.ns500708.ns500576.ns500576.ns500708.trackreceptor.com, ns500693.ns500693.ns500734.ns500693.ns500693.ns500588.ns500683.ns500683.ns500693.ns500588.ns500632.ns500110.dtrkdll.com, caregp.com.au and novataki.com.
these mail servers are often used alongside the mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com points to 2607:f8b0:4004:c08::1a and 172.253.115.27.
alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1b and 192.178.128.26.
alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1b and 172.253.116.26.
alt3.aspmx.l.google.com points to 2607:f8b0:4023:1015::1b and 172.253.135.27.
alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1a and 173.194.76.27.