mail.openlearning.edu.vn - robtex.com

mail.openlearning.edu.vn

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:acba🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::6815:1e63🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.99Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.186🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.99, 172.67.172.186
IPv6 hints2606:4700:3030::ac43:acba, 2606:4700:3031::6815:1e63
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=198, name=cloudflare-ech.com

openlearning.edu.vn

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:acba🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::6815:1e63🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.99Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.186🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSangela.ns.cloudflare.com ⭐
NStoby.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXTca3-fd8cb94f36254132bb51b08742a487e1
TXTgoogle-site-verification=39evECCU9AmkGN64QzX0bdpUR78xEH9DaFlC4CGEQhw
TXTgoogle-site-verification=XdyNg3w3d_Pl4HWIQ-19p_x8fBmkvunxbhWMRuwotDk
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.99, 172.67.172.186
IPv6 hints2606:4700:3030::ac43:acba, 2606:4700:3031::6815:1e63
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=198, name=cloudflare-ech.com
SOAangela.ns.cloudflare.comdns@cloudflare.com serial=2403586217

Same first word

mail.lc
mail.city
mail.yt
mail.watch
mail.lomo.jp
mail.lu
mail.tel
mail.ws
mail.holiday
mail.zombie.jp
mail.ma
mail.mr
mail.gov.af
mail.hashbang.sh
mail.mil.ru
mail.schwarz
mail.co.uk
mail.net.mk
mail.rj.gov.br
mail.freedesktop.org
mail.direct
mail.yandex
mail.sh.cn
mail.vacations
mail.my
mail.gov.mz
mail.gov.ph
mail.veterinaire.fr
mail.ee
mail.yokohama
mail.mu
mail.nflfan.org
mail.bayern
mail.dnsalias.com
mail.com.tr
mail.ai
mail.my.id
mail.org.ru
mail.re
mail.credit
mail.pl
mail.co.com
mail.perspecta.cloud
mail.ac.id
mail.nu
mail.barcelona
mail.codes
mail.ddns.net
mail.net.kg
mail.qualifioapp.com
mail.photography
mail.net.au
mail.storage
mail.energy
mail.mods.jp
mail.online
mail.ras.ru
mail.ls
mail.app
mail.co.kr
mail.rv.ua
mail.ox.rs
mail.idv.tw
mail.toray
mail.pt
mail.ke
mail.net.sa
mail.idf.il
mail.house
mail.mk
mail.club
mail.news
mail.daa.jp
mail.sd
mail.co.id
mail.top
mail.health-carereform.com
mail.iki.fi
mail.limited
mail.man
mail.gen.tr
mail.zip
mail.dvrcam.info
mail.gov.gd
mail.brasilia.me
mail.hopto.me
mail.pn
mail.panel.dev
mail.gov.il
mail.ie
mail.co.cr
mail.pa
mail.schaeffler
mail.gov.to
mail.berlin
mail.dynns.com
mail.go.id
mail.tl
mail.rec.br
mail.com.ps

Similar names

mail.email
mail.blue
mail.tools
liam.works
ailm.net
mail.sy
mail.li
mail.rw
mail.vision
mlia.com
ilma.ru
mail.sk
mail.at
mail.surf
liam.red
lami.com.cn
almi.su
lima.zone
mila.international
mail.gov.ge
mail.dating
mail.travel
mail.td
mail.nr
mila.network
mail.nrw
mail.xyz
lima.gov.py
mlai.org
mail.loginto.me
laim.co.jp
imal.com.au
mial.se
mail.bio
mila.org
mail.dk
mail.main.jp
mail.graphics
liam.energy
amil.fr
mlai.com
mila.agency
mila.host
imla.in
aiml.eu
mali.ca
lami.ca
lima.ie
mali.kz
amil.feedback
mila.com.uy
lima.com.br
lima.ag
imla.net
almi.gr
mlai.cn
lima.taxi
alim.be
aiml.net
liam.id.vn
laim.ee
almi.tv
mial.pl
lima.today
ialm.ru
mila.com.tr
almi.co
alim.org
aiml.ru
mila.ru
alim.eu
lima.pt

DNS History

4 records (4 active, 0 former)

A104.21.30.99172.67.172.1862606:4700:3030::ac43:acba2606:4700:3031::6815:1e63
●A104.21.30.992026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 02:16:30
● 2026-05-13 07:29:16
●A172.67.172.1862026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 02:16:30
● 2026-05-13 07:29:16
●A2606:4700:3030::ac43:acba2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 02:16:30
● 2026-05-13 07:29:16
●A2606:4700:3031::6815:1e632026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 02:16:30
● 2026-05-13 07:29:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vnc.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn...-
openlearning.edu.vnangela.ns.cloudflare.com, toby.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.65

NS records: angela.ns.cloudflare.com, toby.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1068ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.172.186, 104.21.30.99
AAAA22606:4700:3031::6815:1e63, 2606:4700:3030::ac43:acba
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

Four IP numbers are pointed to by mail.openlearning.edu.vn: 2606:4700:3030::ac43:acba, 2606:4700:3031::6815:1e63, 104.21.30.99 and 172.67.172.186.

other host names including cimalab.cl, voz9.openlearning.edu.vn, www.zcypf.com, jazzmm.com and edu.openlearning.edu.vn share IP numbers with mail.openlearning.edu.vn.