du.edu.vn - robtex.com

du.edu.vn

DNSSEC⚠️ Not signed
NSadam.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b36🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadam.ns.cloudflare.com
A2803:f800:50::6ca2:c136🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRadam.ns.cloudflare.com
A2a06:98c1:50::ac40:2136🇺🇸 Cloudflare2a06:98c1:50::/45
PTRadam.ns.cloudflare.com
A108.162.193.54🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadam.ns.cloudflare.com
A172.64.33.54🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadam.ns.cloudflare.com
A173.245.59.54🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadam.ns.cloudflare.com
NSmaria.ns.cloudflare.com
A2606:4700:50::adf5:3ac0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmaria.ns.cloudflare.com
A2803:f800:50::6ca2:c0c0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmaria.ns.cloudflare.com
A2a06:98c1:50::ac40:20c0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmaria.ns.cloudflare.com
A108.162.192.192🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmaria.ns.cloudflare.com
A172.64.32.192🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmaria.ns.cloudflare.com
A173.245.58.192🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmaria.ns.cloudflare.com
MXdu-edu-vn.mail.protection.outlook.com ⭐
A2a01:111:f403:ca0b::🇬🇧 Microsoft2a01:111:f000::/36
PTRmail-lo2p265cu02300.inbound.protection.outlook.com
A2a01:111:f403:ca0b::1🇬🇧 Microsoft2a01:111:f000::/36
PTRmail-lo3p265cu00301.inbound.protection.outlook.com
A2a01:111:f403:ca0b::2🇬🇧 Microsoft2a01:111:f000::/36
PTRmail-lo0p265cu00202.inbound.protection.outlook.com
A2a01:111:f403:ca1a::1🇬🇧 Microsoft2a01:111:f000::/36
PTRmail-cwxp265cu00601.inbound.protection.outlook.com
A52.101.89.0🇬🇧 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-lo2p265cu02300.inbound.protection.outlook.com
A52.101.89.2🇬🇧 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-lo3p265cu00302.inbound.protection.outlook.com
A52.101.99.0🇬🇧 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cwxp265cu00600.inbound.protection.outlook.com
A52.101.99.2🇬🇧 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cwxp265cu00502.inbound.protection.outlook.com
TXTms=ms84617525
TXTv=spf1 include:spf.protection.outlook.com -all
SOAadam.ns.cloudflare.comdns@cloudflare.com serial=2406782849

edu.vn

DNSSEC⚠️ Not signed
NSdns-master.vnnic.vn ⭐
NSa.dns-servers.vn ⚠️ Not in parent delegation
NSb.dns-servers.vn ⚠️ Not in parent delegation
NSc.dns-servers.vn ⚠️ Not in parent delegation
NSd.dns-servers.vn ⚠️ Not in parent delegation
NSe.dns-servers.vn ⚠️ Not in parent delegation
NSf.dns-servers.vn ⚠️ Not in parent delegation
NSg.dns-servers.vn ⚠️ Not in parent delegation
NSh.dns-servers.vn ⚠️ Not in parent delegation
SOAdns-master.vnnic.vnpostmaster@vnnic.vn serial=2018582106

Same first word

du.kg
du.am
du.lv
du.no
du.email
du.net
du.works
du.ppg.br
du.com.pl
du.chat
du.co
du.cn
du.coach
du.ag
du.idv.tw
du.ac
du.se
du.pa
du.hu
du.ro
du.com.ar
du.ee
du.country
du.edu.pk
du.today
du.sk
du.com
du.ae
du.biz
du.io
du.ac.ir
du.kz
du.ph
du.edu.om
du.wtf
du.edu
du.fitness
du.do
du.com.pe
du.world
du.is
du.ms
du.rs
du.co.nz
du.cc
du.to
du.dev
du.family
du.si
du.eu
du.lt
du.su
du.ws
du.or.kr
du.ie
du.gov.mn
du.nu
du.de
du.dk
du.edu.et
du.fi
du.tr
du.ru
du.com.mx
du.ac.in
du.edu.eg
du.be
du.my
du.cz
du.tn
du.pl
du.edu.tr
du.ac.kr
du.by
du.edu.vn
du.ma
du.st
du.cx
du.soccer
du.org
du.pe

Similar names

ud.ca
ud.cx
ud.com
ud.se
ud.ae
ud.org.ua
ud.world
ud.wtf
ud.org.cn
ud.eu
ud.cl
ud.com.au
ud.com.ua
ud.cz
ud.ac.th
ud.in.ua
ud.ltd
ud.me
ud.com.sa
ud.pl
ud.io
ud.tv
ud.ie
ud.wine
ud.net
ud.cc
ud.fi
ud.ro
ud.cn
ud.co.th
ud.ac.ae
ud.no
ud.my
ud.hk
ud.co.nz
ud.dep.no
ud.ag
ud.chat
ud.ua
ud.cm
ud.edu.vn

DNS History

3 records (3 active, 0 former)

NSadam.ns.cloudflare.commaria.ns.cloudflare.comMXdu-edu-vn.mail.protection.outlook.com
●NSadam.ns.cloudflare.com2026-05-24 → 2026-07-22 · 2 obs
● 2026-05-24 04:06:38
● 2026-07-22 13:52:24
●NSmaria.ns.cloudflare.com2026-05-24 → 2026-07-22 · 2 obs
● 2026-05-24 04:06:38
● 2026-07-22 13:52:24
●MXdu-edu-vn.mail.protection.outlook.com2026-05-24 → 2026-07-22 · 2 obs
● 2026-05-24 04:06:38
● 2026-07-22 13:52:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, c.dns-servers.vn, b.dns-servers.vn, f.dns-servers.vn...-
du.edu.vnmaria.ns.cloudflare.com, adam.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.54

NS records: maria.ns.cloudflare.com, adam.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for du.edu.vn (unsigned zone)

⏱️ Timing

Total: 2933ms | Queries: -

📄 Records

TypeCountSample Data
NS2adam.ns.cloudflare.com, maria.ns.cloudflare.com
MX1du-edu-vn.mail.protection.outlook.com (p
TXT2ms=ms84617525, v=spf1 include:spf.protection.outlook.co
SOA1adam.ns.cloudflare.com dns.cloudflare.co

Analysis

Name Servers

du.edu.vn is served by two delegated name servers, adam.ns.cloudflare.com and maria.ns.cloudflare.com.

du.edu.vn has the same name server delegation as a number of other domains, such as bewareofbears.com, mountzioncollege.org, booqnow.com and two more.

du.edu.vn has at least partial name server overlap with other domains, such as alert.fyi, hostbrogo.com, pinoyau.org and two others.

It is common to find these name servers paired with the name servers sonia.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

adam.ns.cloudflare.com carries IP addresses 108.162.193.54, 172.64.33.54 and 173.245.59.54, with 3 other addresses beyond those.

maria.ns.cloudflare.com carries IP addresses 108.162.192.192, 172.64.32.192 and 173.245.58.192, with 3 other addresses beyond those.

Mail Servers

du.edu.vn routes its mail through a single mail server, du-edu-vn.mail.protection.outlook.com.

du-edu-vn.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.89.0, 52.101.89.2 and 52.101.99.0, along with 5 other.