admin.edu.vn - robtex.com

admin.edu.vn

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:1f3f🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:af39🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.31.63Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.175.57🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkarl.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bbe🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarl.ns.cloudflare.com
A2803:f800:50::6ca2:c1be🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkarl.ns.cloudflare.com
A2a06:98c1:50::ac40:21be🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkarl.ns.cloudflare.com
A108.162.193.190🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarl.ns.cloudflare.com
A172.64.33.190🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarl.ns.cloudflare.com
A173.245.59.190🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarl.ns.cloudflare.com
NSserena.ns.cloudflare.com
A2606:4700:50::adf5:3adc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRserena.ns.cloudflare.com
A2803:f800:50::6ca2:c0dc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRserena.ns.cloudflare.com
A2a06:98c1:50::ac40:20dc🇺🇸 Cloudflare2a06:98c1:50::/45
PTRserena.ns.cloudflare.com
A108.162.192.220🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRserena.ns.cloudflare.com
A172.64.32.220🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRserena.ns.cloudflare.com
A173.245.58.220🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRserena.ns.cloudflare.com
MXroute1.mx.cloudflare.net ⭐
A2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
MXroute2.mx.cloudflare.net(43)
A2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
MXroute3.mx.cloudflare.net(70)
A2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
TXTgoogle-site-verification=lUw7oH24HDjfwuZcrzX2fFhXop2b8MtEZoNeIfCG2Fw
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.31.63, 172.67.175.57
IPv6 hints2606:4700:3032::6815:1f3f, 2606:4700:3033::ac43:af39
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=177, name=cloudflare-ech.com
SOAkarl.ns.cloudflare.comdns@cloudflare.com serial=2397757369

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=2018558304

Same first word

admin.co
admin.services
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DNS History

13 records (9 active, 4 former)

NSkarl.ns.cloudflare.comserena.ns.cloudflare.comMXroute1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.netA104.21.31.63172.67.175.572606:4700:3032::6815:1f3f2606:4700:3033::ac43:af39188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSkarl.ns.cloudflare.com2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 18:11:20
● 2026-04-12 11:34:06
●NSserena.ns.cloudflare.com2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 18:11:20
● 2026-04-12 11:34:06
●MXroute1.mx.cloudflare.net2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 18:11:20
● 2026-04-12 11:34:06
●MXroute2.mx.cloudflare.net2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 18:11:20
● 2026-04-12 11:34:06
●MXroute3.mx.cloudflare.net2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 18:11:20
● 2026-04-12 11:34:06
●A104.21.31.632026-04-12 → 2026-04-12 · 2 obs
○ 2026-04-11 18:11:20
● 2026-04-12 11:34:06
●A172.67.175.572026-04-12 → 2026-04-12 · 2 obs
○ 2026-04-11 18:11:20
● 2026-04-12 11:34:06
○A188.114.96.02026-04-11 → 2026-04-11 · 2 obs
● 2026-04-11 18:11:20
○ 2026-04-12 11:34:06
○A188.114.97.02026-04-11 → 2026-04-11 · 2 obs
● 2026-04-11 18:11:20
○ 2026-04-12 11:34:06
●A2606:4700:3032::6815:1f3f2026-04-12 → 2026-04-12 · 2 obs
○ 2026-04-11 18:11:20
● 2026-04-12 11:34:06
●A2606:4700:3033::ac43:af392026-04-12 → 2026-04-12 · 2 obs
○ 2026-04-11 18:11:20
● 2026-04-12 11:34:06
○A2a06:98c1:3120::2026-04-11 → 2026-04-11 · 2 obs
● 2026-04-11 18:11:20
○ 2026-04-12 11:34:06
○A2a06:98c1:3121::2026-04-11 → 2026-04-11 · 2 obs
● 2026-04-11 18:11:20
○ 2026-04-12 11:34:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...-
admin.edu.vnserena.ns.cloudflare.com, karl.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.190

NS records: serena.ns.cloudflare.com, karl.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 953ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.31.63, 172.67.175.57
AAAA22606:4700:3033::ac43:af39, 2606:4700:3032::6815:1f3f
NS2karl.ns.cloudflare.com, serena.ns.cloudflare.com
MX3route1.mx.cloudflare.net (pri: 37), route2.mx.cloudflare.net (pri: 43)...
TXT2google-site-verification=lUw7oH24HDjfwuZ, v=spf1 include:_spf.mx.cloudflare.net ~a
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1karl.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

admin.edu.vn resolves to four IPs: 2606:4700:3032::6815:1f3f, 2606:4700:3033::ac43:af39, 104.21.31.63 and 172.67.175.57.

Other host names such as royexasystems.co.uk, imvriotis.gr, link.bodybosstone.com, tinipunci.hu and tabeo.it share IP numbers with admin.edu.vn.

Name Servers

admin.edu.vn is delegated to two name servers: karl.ns.cloudflare.com and serena.ns.cloudflare.com.

admin.edu.vn uses the same name server setup as other domains, including 3345.com.tr, cheaplocksmithstlouis.com, whyvn.com, 2visual.nl and mobcodes.com.tr.

At least part of the name servers for admin.edu.vn are shared with other domains, for instance c44k.net, prayingthruthebible.com, danjwilliams.com.au, jeffz.net and farmaciamorpheus.ro.

These name servers are commonly used alongside tori.ns.cloudflare.com and merlin.ns.cloudflare.com.

Host names with six IP numbers:

karl.ns.cloudflare.com points to: 2606:4700:58::adf5:3bbe, 2803:f800:50::6ca2:c1be, 2a06:98c1:50::ac40:21be, 108.162.193.190, 172.64.33.190 and 173.245.59.190.

serena.ns.cloudflare.com points to: 2606:4700:50::adf5:3adc, 2803:f800:50::6ca2:c0dc, 2a06:98c1:50::ac40:20dc, 108.162.192.220, 172.64.32.220 and 173.245.58.220.

Mail Servers

Three mail servers handle admin.edu.vn: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

admin.edu.vn shares at least some mail servers with other domains, for example content-sutra.com, gamenewsguru.com, esbd.kz, saytt.com and panicboard.com.

Host names with six IP numbers: route1.mx.cloudflare.net points to 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13; route2.mx.cloudflare.net points to 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19; route3.mx.cloudflare.net points to 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.