`kosna.vn`

DNSSEC	⚠️ Not signed
A	45.252.249.44^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN}
NS	`ns1.zonedns.vn` ⭐
		A	2401:c080:1400:1cd4:5400:5ff:fe80:ec33^{🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix}
		A	64.176.84.220^{🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix}
			PTR	`ns1.zonedns.vn`
NS	`ns2.zonedns.vn`
		A	2401:c080:1400:1cd4:5400:5ff:fe80:ec33^{🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix}
		A	103.176.178.51^{🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN}
NS	`ns3.zonedns.vn`
		A	2001:df1:3200::15^{🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN}
		A	103.28.36.30^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
NS	`ns4.zonedns.vn`
		A	2001:df1:3200::15^{🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN}
		A	103.28.39.159^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f27.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.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	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.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	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.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	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=3YpE2FtApHkaTHrCEH08Bm3ZWysvmSwssX94P6ZMVew`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns1.zonedns.vn`root@kosna.vn 2025-02-13 #4

`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=2030895138

Subdomains

www.kosna.vn

Same first word

kosna.eu

kosna.or.kr

kosna.vn

kosna.cz

kosna.ru

kosna.pl

kosna.com

Similar names

nasko.shop

sanko.org

konas.ru

oknas.com

sanko.ac.jp

konsa.com

akson.fi

sanko.com.ph

kanos.sk

osnak.com

nakos.be

akson.ir

sokan.it

kanso.design

sanok.com.pl

akson.be

noaks.de

kason.com

kanso.de

ansok.net

sanko.dk

sokan.jp

nokas.org

kanos.net

sanko.cn

kosan.ru

sanok.com

onsak.com

snako.com

nakos.gr

konsa.eu

aknos.com

nasko.ua

snoak.com

oknas.cn

askon.eu

konsa.pro

askon.net

sokan.app

nakos.net

sanko.nl

kanso.ca

sokan.com

skona.co.kr

konsa.de

ankos.ru

kason.se

kosan.de

konas.de

nasko.at

nasko.bg

sakon.or.jp

sanko.xyz

akson.spb.ru

akson.ru

kanso.com

sonka.tokyo

nokas.com

akson.com.pl

askno.cn

kasno.de

nasko.de

onaks.com

sanok.ru

kanso.eu

ankos.eu

kason.xyz

ankos.com.ua

sokan.org

onkas.com

akson.eu

ansko.no

skano.net

kanso.at

akson.fr

kosan.com.cn

koans.com

kanso.co.jp

akson.am

ansok.us

akson.cn

kosan.moe

skano.ee

kanso.land

asnok.com

kason.nl

skano.lv

sanko.eu

sanko.web.tr

kason.at

kosan.eu

sanok.info

nakos.no

nasko.org

skano.pl

sonka.com.ua

kanso.lt

noksa.net

konas.com.tr

askon.co.uk

DNS History

10 records (10 active, 0 former)

●NSns1.zonedns.vn2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●NSns2.zonedns.vn2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●NSns3.zonedns.vn2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●NSns4.zonedns.vn2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●MXalt1.aspmx.l.google.com2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●MXalt2.aspmx.l.google.com2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●MXalt3.aspmx.l.google.com2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●MXalt4.aspmx.l.google.com2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●MXaspmx.l.google.com2026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

●A45.252.249.442026-05-01 → 2026-06-16 · 2 obs

● 2026-05-01 18:11:30
● 2026-06-16 19:55:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
kosna.vn	ns3.zonedns.vn, ns2.zonedns.vn, ns1.zonedns.vn, ns4.zonedns.vn	-

✅ Authoritative Response

Server:64.176.84.220

NS records: ns3.zonedns.vn, ns2.zonedns.vn, ns1.zonedns.vn, ns4.zonedns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kosna.vn (unsigned zone)

⏱️ Timing

Total: 4025ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.252.249.44`
NS	4	`ns3.zonedns.vn, ns2.zonedns.vn...`
MX	5	`ALT2.ASPMX.L.GOOGLE.COM (pri: 5), ALT3.ASPMX.L.GOOGLE.COM (pri: 10)...`
TXT	2	`v=spf1 include:_spf.google.com ~all, google-site-verification=3YpE2FtApHkaTHr`
SOA	1	`ns1.zonedns.vn root.kosna.vn`

Analysis

Hierarchy

www.kosna.vn is a subdomain of kosna.vn.

IP Addresses

kosna.vn has exactly one IP address — 45.252.249.44.

www.gaobachmoc.duy2.name.vn, www.video.tere.vn, org.duy2.name.vn plus two other host names have IP numbers in common with kosna.vn.

Name Servers

Four name servers handle the delegation for kosna.vn: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.

The name servers of kosna.vn overlap at least partially with those of other domains — among them arrows.com.vn, dazpro.com, yoga.com.vn and two more.

These name servers commonly appear alongside the name servers ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.

Four hosts, each with two IP addresses — ns1.zonedns.vn → 64.176.84.220 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33; ns2.zonedns.vn → 103.176.178.51 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33; ns3.zonedns.vn → 103.28.36.30 and 2001:df1:3200::15; ns4.zonedns.vn → 103.28.39.159 and 2001:df1:3200::15.