dca.edu.vn - robtex.com

dca.edu.vn

DNSSEC⚠️ Not signed
A103.221.223.21🇻🇳 AZDIGI-AS-VN103.221.220.0/22 AZDIGI-VN
NSns1.matbao.vn ⭐
A13.250.228.99🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix
PTRec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com
A103.110.128.60🇻🇳 AXYS-VN103.110.128.0/23
NSns1.matbao.com ⚠️ Not in zone NS records
A13.250.228.99🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix
PTRec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com
A103.110.128.60🇻🇳 AXYS-VN103.110.128.0/23
NSns2.matbao.com ⚠️ Not in zone NS records
A35.198.203.127🇸🇬 Google35.198.192.0/20
PTR127.203.198.35.bc.googleusercontent.com
A103.138.89.11🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET
NSns2.matbao.vn
A35.198.203.127🇸🇬 Google35.198.192.0/20
PTR127.203.198.35.bc.googleusercontent.com
A103.138.89.11🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c06::1b🇺🇸 Google2607:f8b0::/32
PTRdz-in-f27.1e100.net
A142.251.2.26🇺🇸 Google142.251.2.0/24
PTRdl-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.26🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:3003::1a🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f26.1e100.net
A172.253.145.27🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1a🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f26.1e100.net
PTRws-in-x1a.1e100.net
A173.194.76.26🇺🇸 Google173.194.76.0/24
PTRws-in-f26.1e100.net
TXTv=spf1 include:_spf.google.com ~all
TXTgoogle-site-verification=uMIXdIHyn3Ick9zmSlCbYBOHrJYXWz-3jgiUjp1D8gY
SOAns1.matbao.vnadmin@matbao.com 2025-11-06 #2

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=2018563491

Subdomains

cpcontacts.dca.edu.vn
cpcalendars.dca.edu.vn
c63bef77-6511-4541-a258-a5f47c6e9f91.dca.edu.vn
cpanel.dca.edu.vn
webmail.dca.edu.vn
dddd.dca.edu.vn
autodiscover.dca.edu.vn
website.dca.edu.vn
www.dca.edu.vn
mail.dca.edu.vn
m.dca.edu.vn
0b7c5b46-dbb1-4565-8956-696c67dbae12.dca.edu.vn
smtp.dca.edu.vn
webdisk.dca.edu.vn

Same first word

dca.nl
dca.capital
dca.mobi
dca.tj
dca.church
dca.com.br
dca.com.uy
dca.com.pl
dca.biz
dca.fi
dca.sg
dca.pt
dca.tel
dca.co.id
dca.com.zm
dca.com.my
dca.build
dca.ca
dca.com.tr
dca.com.do
dca.me
dca.kiev.ua
dca.kz
dca.com.mx
dca.ir
dca.design
dca.ch
dca.dev
dca.nl.eu.org
dca.foundation
dca.pl
dca.mc
dca.co.nz
dca.ae
dca.edu.au
dca.info
dca.es
dca.co
dca.center
dca.ru
dca.cn
dca.de
dca.cat
dca.cl
dca.net
dca.com
dca.org.cn
dca.co.uk
dca.sy
dca.com.tw
dca.eu
dca.dk
dca.cz
dca.com.au
dca.sk
dca.gov.uk
dca.asia
dca.wa.gov.au
dca.adv.br
dca.edu.vn
dca.edu.in
dca.at
dca.tw
dca.gob.gt
dca.rocks
dca.gr
dca.tv
dca.com.sg
dca.it
dca.org.uk
dca.us
dca.org.au
dca.org
dca.org.sa
dca.fr
dca.land
dca.be
dca.mx

Similar names

cda.cz
cda.org.pe
cda.bet
cad.info.pl
cad.international
dac.net
cda.sp.gov.br
adc.tv
acd.io
adc.name
cad.lt
cad.com.hk
cad.ca
dac.it
dac.gov.in
acd.ac.th
adc.com.co
dac.or.id
dac.ddns.net
adc.net
cad.li
adc.cn
adc.gr.jp
acd.design
cda.in
adc.construction
cad.su
acd.de
adc.spb.ru
dac.sa.gov.au
cda.cc
adc.es
cad.org.ar
cad.gr
cad.zone
adc.ci
cad.nic.in
cda.ma
adc.com
acd.bet
cad.readthedocs.io
cda.foundation
cad.ru
acd.care
adc.hs.kr
cad.com.tr
cda.ca
cad.dk
cad.as
cad.mn
acd.immo
cad.net.au
cad.care
cad.im
cda.graphics
adc.net.cn
dac.co
dac.center
acd.ro
adc.by
dac.pl
adc.us
dac.ph
adc.services
acd.cn.it
acd.cl
cda.gov.sg
dac.com.au
cad.go.th
acd.cat
cda.go.ke
acd.ru
adc.nl
adc.asso.fr
adc.io
adc.company
dac.city
dac.digital
dac.nl
cad.world
dac.com.vn
dac.edu.vn

DNS History

10 records (10 active, 0 former)

NSns1.matbao.comns1.matbao.vnns2.matbao.comns2.matbao.vnMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA103.221.223.21
●NSns1.matbao.com2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●NSns1.matbao.vn2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●NSns2.matbao.com2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●NSns2.matbao.vn2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●MXalt1.aspmx.l.google.com2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●MXalt2.aspmx.l.google.com2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●MXalt3.aspmx.l.google.com2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●MXalt4.aspmx.l.google.com2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●MXaspmx.l.google.com2026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26
●A103.221.223.212026-05-01 → 2026-05-05 · 2 obs
● 2026-05-01 01:50:48
● 2026-05-05 02:09:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...-
dca.edu.vnns1.matbao.com, ns2.matbao.vn, ns2.matbao.com, ns1.matbao.vn-

✅ Authoritative Response

Server:13.250.228.99

NS records: ns1.matbao.com, ns2.matbao.vn, ns2.matbao.com, ns1.matbao.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1895ms | Queries: -

📄 Records

TypeCountSample Data
A1103.221.223.21
NS2ns2.matbao.vn, ns1.matbao.vn
MX5ALT3.ASPMX.L.GOOGLE.COM (pri: 10), ASPMX.L.GOOGLE.COM (pri: 1)...
TXT2google-site-verification=uMIXdIHyn3Ick9z, v=spf1 include:_spf.google.com ~all
SOA1ns1.matbao.vn admin.matbao.com

Analysis

Hierarchy

dca.edu.vn has children including cpcontacts.dca.edu.vn, cpcalendars.dca.edu.vn, c63bef77-6511-4541-a258-a5f47c6e9f91.dca.edu.vn, cpanel.dca.edu.vn, webmail.dca.edu.vn and a few other host names.

IP Addresses

dca.edu.vn points to a single IP address: 103.221.223.21.

Other host names such as age.edu.vn, blh.vn, www.kenhtrading.com.skylandgroup.com.vn, mail.xuongmayhongnamvy.vn and nguyenminhhoang.xyz share IP numbers with dca.edu.vn.

Name Servers

dca.edu.vn is delegated to four name servers: ns1.matbao.com, ns2.matbao.com, ns1.matbao.vn and ns2.matbao.vn.

At least part of the name servers for dca.edu.vn are shared with other domains, for instance nongsankhicanh.vn, thegioidongduoc.com.vn, cuacuonthienanh.vn, mrsolar.vn and vppthiennam.com.vn.

These name servers are commonly used alongside the name servers ns-bak.matbao.com.

Host names with two IPs:

ns1.matbao.com points to 13.250.228.99 and 103.110.128.60

ns2.matbao.com points to 35.198.203.127 and 103.138.89.11

ns1.matbao.vn points to 13.250.228.99 and 103.110.128.60

ns2.matbao.vn points to 35.198.203.127 and 103.138.89.11

Host names that point to 13.250.228.99: ns1.matbao.com and ns1.matbao.vn

Host names that point to 103.110.128.60: ns1.matbao.com and ns1.matbao.vn

Host names that point to 35.198.203.127: ns2.matbao.com and ns2.matbao.vn

Host names that point to 103.138.89.11: ns2.matbao.com and ns2.matbao.vn

Mail Servers

dca.edu.vn is handled by five mail servers: 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.

dca.edu.vn shares at least some mail servers with other domains, for example duneroadgroup.com, ns500742.ns500754.ns500671.ns500731.ns500742.ns500705.ns500671.ns500688.ns500671.ns500671.ns500649.ns500291.ns500291.ns500291.ns500131.lustychickser.com, ns500731.ns500731.ns500754.ns500731.ns500754.ns500704.ns500704.ns500688.ns500678.ns500671.ns500705.ns500705.ns500678.ns500291.ns500666.ns500291.ns500131.lustychickser.com, mail.dimep.com.br and technohard.biz.

These mail servers are commonly used alongside aspmx2.googlemail.com, aspmx3.googlemail.com and aspmx4.googlemail.com.

Host names with two IP numbers: aspmx.l.google.com points to 2607:f8b0:4023:c06::1b and 142.251.2.26; alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.26; alt2.aspmx.l.google.com points to 2607:f8b0:4023:3003::1a and 172.253.145.27; alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.26; alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1a and 173.194.76.26.