`exam.vn`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:baf7^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:13a3^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.19.163^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.186.247^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amir.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amir.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amir.ns.cloudflare.com`
		A	108.162.193.62^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	172.64.33.62^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	173.245.59.62^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
NS	`tani.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tani.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tani.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tani.ns.cloudflare.com`
		A	108.162.192.224^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tani.ns.cloudflare.com`
		A	172.64.32.224^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tani.ns.cloudflare.com`
		A	173.245.58.224^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tani.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c21::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f26.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`brevo-code:499218dae3b01833324a795f6ade2055`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.19.163, 172.67.186.247
		IPv6 hints	2606:4700:3031::ac43:baf7, 2606:4700:3036::6815:13a3
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com
SOA	`amir.ns.cloudflare.com`dns@cloudflare.com serial=2407676362

`vn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn`
	NS	`b.dns-servers.vn`
	NS	`c.dns-servers.vn`
	NS	`d.dns-servers.vn`
	NS	`e.dns-servers.vn`
	NS	`f.dns-servers.vn`
	NS	`g.dns-servers.vn`
	NS	`h.dns-servers.vn`
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2030988435

Subdomains

api-beta.exam.vn

api-check.exam.vn

Same first word

exam.io

exam.to

exam.academy

exam.tn

exam.support

exam.com.pk

exam.dk

exam.ca

exam.media

exam.fr

exam.world

exam.mobi

exam.jp

exam.ng

exam.co.nz

exam.hm

exam.care

exam.edu.pl

exam.edu.az

exam.ie

exam.network

exam.cool

exam.nl

exam.center

exam.asia

exam.or.jp

exam.info

exam.systems

exam.ug

exam.gov.tw

exam.company

exam.edu.kg

exam.at

exam.ac

exam.agency

exam.be

exam.ah.cn

exam.kz

exam.edu.my

exam.ru

exam.eu

exam.pet

exam.me

exam.today

exam.ws

exam.vn

exam.school

exam.lt

exam.org

exam.com

exam.training

exam.ly

exam.coach

exam.by

exam.bet

exam.sk

exam.net

exam.us

exam.zone

exam.se

exam.education

exam.sc.cn

exam.ge

exam.co

exam.ph

exam.direct

exam.guru

exam.work

exam.az

exam.one

exam.tel

exam.tools

exam.biz

exam.su

exam.co.za

exam.org.cn

exam.mn

exam.expert

exam.it

exam.co.kr

exam.gr

exam.solutions

Similar names

emax.digital

amex.co.kr

mexa.cn

exma.cl

axem.cz

axem.ru

exma.fr

mexa.jp

axme.eu

amex.be

amex.com.sg

amex.online

amex.com.ng

emax.ba

maex.me

xema.nl

emax.mx

maxe.eu

axem.co.jp

maex.eu

emax.de

axem.eu

emax.com.pl

amex.com.py

exma.com.co

emax.com.ua

amex.md

amex.pt

xema.se

amex.co

amex.canva-apps.cn

xeam.cloud

maex.click

mexa.eu

amex.blackfriday

mexa.mx

emax.at

amex.net.pl

emax.solutions

amex.jp

amex.bradesco

maex.biz

axem.cl

axem.com.au

meax.ru

emax.hu

amex.co.at

emax.net.cn

xame.cloud

amex.lu

axem.net

amex.fr

amex.us

emax.kr

amex.com

maex.co.jp

amex.im

emax.in

axme.ru

emax.dk

maxe.cn

maex.at

emax.co

amex.com.hk

amex.me

amex.hu

maxe.cz

aemx.de

amex.cr

exma.ch

emax.ru

amex.biz.pl

exma.com.mx

amxe.net

mexa.us

amex.events

amex

meax.dk

mxea.com

exma.co.uk

amex.com.mx

amex.co.in

amex.ca

emax.eu

axem.org

DNS History

11 records (11 active, 0 former)

●NSamir.ns.cloudflare.com2026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●NStani.ns.cloudflare.com2026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●MXalt1.aspmx.l.google.com2026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●MXalt2.aspmx.l.google.com2026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●MXalt3.aspmx.l.google.com2026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●MXalt4.aspmx.l.google.com2026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●MXaspmx.l.google.com2026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●A104.21.19.1632026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●A172.67.186.2472026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●A2606:4700:3031::ac43:baf72026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

●A2606:4700:3036::6815:13a32026-07-09 → 2026-07-12 · 2 obs

● 2026-07-09 17:41:18
● 2026-07-12 07:24:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
exam.vn	amir.ns.cloudflare.com, tani.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.224

NS records: amir.ns.cloudflare.com, tani.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for exam.vn (unsigned zone)

⏱️ Timing

Total: 1138ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.186.247, 104.21.19.163`
AAAA	2	`2606:4700:3036::6815:13a3, 2606:4700:3031::ac43:baf7`
NS	2	`amir.ns.cloudflare.com, tani.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`brevo-code:499218dae3b01833324a795f6ade2, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amir.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

api-beta.exam.vn and api-check.exam.vn are both subdomains of exam.vn.

IP Addresses

exam.vn points to the four IP addresses 104.21.19.163, 172.67.186.247, 2606:4700:3031::ac43:baf7 and 2606:4700:3036::6815:13a3.

vip177.com, alomasteele.com, gvschoolpub.org and two other host names share IP numbers with exam.vn.

Name Servers

The NS records for exam.vn delegate to amir.ns.cloudflare.com and tani.ns.cloudflare.com.

exam.vn uses the same name servers as several other domains — among them hoctiengslovakia.com, nghethuatsong.com.vn, duhocnghenewzealand.com and two more.

The name servers of exam.vn overlap at least partially with those of other domains — among them pvvstream.pro, introtik.com, rophimtv.my and two more.

These name servers commonly appear in combination with the name servers dorthy.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

amir.ns.cloudflare.com maps to 108.162.193.62, 172.64.33.62, 173.245.59.62 and 3 additional IP addresses.

tani.ns.cloudflare.com maps to 108.162.192.224, 172.64.32.224, 173.245.58.224 and 3 additional IP addresses.