tef.edu.vn - robtex.com

tef.edu.vn

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:93ba🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:5fc9🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.95.201Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.147.186🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSedward.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2cd2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRedward.ns.cloudflare.com
A2803:f800:50::6ca2:c3d2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRedward.ns.cloudflare.com
A2a06:98c1:50::ac40:23d2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRedward.ns.cloudflare.com
A108.162.195.210🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRedward.ns.cloudflare.com
A162.159.44.210Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRedward.ns.cloudflare.com
A172.64.35.210🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRedward.ns.cloudflare.com
NSkarina.ns.cloudflare.com
A2606:4700:50::adf5:3ab2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A2803:f800:50::6ca2:c0b2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkarina.ns.cloudflare.com
A2a06:98c1:50::ac40:20b2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkarina.ns.cloudflare.com
A108.162.192.178🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A172.64.32.178🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A173.245.58.178🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c09::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbh-in-f27.1e100.net
A142.251.167.26🇺🇸 Google142.251.167.0/24
PTRww-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.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::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4001:c70::1b🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f27.1e100.net
A192.178.209.27🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f27.1e100.net
TXTgoogle-site-verification=etW0YcptA_0uIyrN-7km8VtBaUTZ8Ez6uPO9pHnB7GA
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.95.201, 172.67.147.186
IPv6 hints2606:4700:3032::ac43:93ba, 2606:4700:3033::6815:5fc9
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com
SOAedward.ns.cloudflare.comdns@cloudflare.com serial=2402107425

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=2018565502

Subdomains

mail.tef.edu.vn

Same first word

tef.cc
tef.jp
tef.in
tef.co.id
tef.co.za
tef.es
tef.ca
tef.computer
tef.la
tef.fr
tef.at
tef.lt
tef.de
tef.or.jp
tef.net.br
tef.kz
tef.com.ro
tef.com.mx
tef.us
tef.tatar
tef.co.ua
tef.com
tef.eu
tef.org.pk
tef.co
tef.edu.vn
tef.ru
tef.org.au
tef.net
tef.no
tef.co.tz
tef.co.jp
tef.be
tef.cl
tef.ie
tef.ch

Similar names

etf.us
fet.biz
fte.ee
etf.co
etf.com.cn
etf.plus
etf.bio
fet.myds.me
tfe.ie
etf.se
eft.systems
fet.be
fet.ch
eft.es
eft.xyz
fte.com.au
fet.ba
eft.training
eft.online
etf.financial
fte.de
fte.in
fte.dk
eft.biz
etf.lu
eft.nu
eft.it
fet.ie
etf.red
fet.ca
tfe.de
eft.cz
etf.network
fte.no
etf.pe
etf.fm
fet.vn
eft.nl
etf.com
etf.fo
tfe.bo
eft.ir
eft.si
etf.com.ua
fet.lv
tfe.fr
etf.group
tfe.jp
fet.at
fet.net.pl
fte.com
tfe.pl
etf.at
fet.kommune.no
fte.ru
eft.su
etf.fi
etf.nu
etf.no
eft.management
eft.wien
fet.com
fet.fun
tfe.me
fet.fr
tfe.bar
tfe.co.kr
fet.com.au
fet.de
eft.com.br
tfe.es
fte.com.tw
etf.nl
fte.org.gr
fet.jp
eft.marketing
eft.me
eft.no
eft.ch
fet.org
tfe.com.au
eft.jp
eft.pt
fte.org
fte.cz
tfe.com.tw
eft.de
etf.gives
etf.ac.me
eft.com.tw
etf.org.eg
eft.at
etf.sg

DNS History

11 records (11 active, 0 former)

NSedward.ns.cloudflare.comkarina.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA104.21.95.201172.67.147.1862606:4700:3032::ac43:93ba2606:4700:3033::6815:5fc9
●NSedward.ns.cloudflare.com2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●NSkarina.ns.cloudflare.com2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●MXalt1.aspmx.l.google.com2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●MXalt2.aspmx.l.google.com2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●MXalt3.aspmx.l.google.com2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●MXalt4.aspmx.l.google.com2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●MXaspmx.l.google.com2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●A104.21.95.2012026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●A172.67.147.1862026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●A2606:4700:3032::ac43:93ba2026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36
●A2606:4700:3033::6815:5fc92026-05-01 → 2026-05-13 · 2 obs
● 2026-05-01 00:05:46
● 2026-05-13 01:22:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...-
tef.edu.vnedward.ns.cloudflare.com, karina.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.210

NS records: edward.ns.cloudflare.com, karina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1430ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.95.201, 172.67.147.186
AAAA22606:4700:3033::6815:5fc9, 2606:4700:3032::ac43:93ba
NS2edward.ns.cloudflare.com, karina.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT2google-site-verification=etW0YcptA_0uIyr, v=spf1 include:_spf.google.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1edward.ns.cloudflare.com dns.cloudflare.

Analysis

Hierarchy

tef.edu.vn is the parent of mail.tef.edu.vn.

IP Addresses

tef.edu.vn resolves to four IP numbers: 2606:4700:3032::ac43:93ba, 2606:4700:3033::6815:5fc9, 104.21.95.201 and 172.67.147.186.

other host names for instance goldogs.com, mersindugun.com, solwalletbuyer.shop, imobiliarebiz.ro and pulsea.net share IP numbers with tef.edu.vn.

Name Servers

tef.edu.vn is delegated to two name servers: edward.ns.cloudflare.com and karina.ns.cloudflare.com.

tef.edu.vn shares the same name server setup as other domains, for example aabe33afcf53.com, 67195210de42.xyz, 4cb684fce6c8.xyz, 987cdc1187ab.xyz and f5bb7ba6b368.com.

tef.edu.vn at least partially shares name servers with other domains, for instance floridastateinspectors.com, webcams-(0x706f726e)o.fr, experisonline.in, myppir.fr and 5919999.net.

These name servers are often used with lilyana.ns.cloudflare.com and ines.ns.cloudflare.com.

Host names with six IP numbers:

edward.ns.cloudflare.com points to: 2606:4700:58::a29f:2cd2, 2803:f800:50::6ca2:c3d2, 2a06:98c1:50::ac40:23d2, 108.162.195.210, 162.159.44.210 and 172.64.35.210; karina.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab2, 2803:f800:50::6ca2:c0b2, 2a06:98c1:50::ac40:20b2, 108.162.192.178, 172.64.32.178 and 173.245.58.178.

Mail Servers

tef.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.

tef.edu.vn shares mail servers with other domains at least partially, including ns500699.ns500699.ns500699.ns500693.ns500699.ns500699.ns500734.ns500699.ns500693.ns500588.ns500588.ns500588.ns500693.ns500699.ns500632.ns500588.ns500588.dtrkdll.com, ns500734.ns500693.ns500693.ns500699.ns500699.ns500699.ns500693.ns500693.ns500699.ns500693.ns500693.ns500588.ns500588.ns500588.ns500588.ns500588.dtrkdll.com, ns500758.ns500758.ns500736.ns500698.ns500736.ns500698.ns500736.ns500735.ns500736.ns500735.ns500698.ns500708.ns500576.ns500619.ns500686.ns500619.ns500576.trackreceptor.com, ns500698.ns500758.ns500759.ns500698.ns500759.ns500736.ns500735.ns500698.ns500736.ns500708.ns500708.ns500698.ns500576.ns500686.ns500576.ns500576.trackreceptor.com and ns500698.ns500698.ns500759.ns500698.ns500735.ns500736.ns500736.ns500698.ns500698.ns500708.ns500686.ns500576.ns500652.ns500576.trackreceptor.com.

these mail servers are often used with aspmx2.googlemail.com and aspmx3.googlemail.com.

Hosts with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c09::1b and 142.251.167.26.

alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1b and 108.177.123.27.

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::1a and 192.178.223.26.

alt4.aspmx.l.google.com points to 2607:f8b0:4001:c70::1b and 192.178.209.27.