`ktbv.vn`

DNSSEC	⚠️ Not signed
A	103.57.221.27^{🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN}
NS	`ns1.pavietnam.vn` ⭐
		A	2406:9c80::66^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns1.dotvndns.vn`
NS	`ns2.pavietnam.vn`
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
NS	`ns3.dotvndns.vn`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
NS	`nsbak.pavietnam.net`
		A	2406:9c80::9000:302^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`nsbak.dotvndns.com`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c03::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dy-in-f26.1e100.net`
		A	142.251.2.26^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.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	2607:f8b0:4001:c70::1b^{🇺🇸 Google2607:f8b0:4001::/48}
			PTR	`yucbful-in-f27.1e100.net`
		A	192.178.209.26^{🇺🇸 Google192.178.209.0/24}
			PTR	`yucbful-in-f26.1e100.net`
TXT	`google-site-verification=bI6pWB99Vt6LU4y8r0VWGhvUhJ90c6-Y7KAxEEZp0Fc`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns1.pavietnam.vn`hostmaster@ktbv.vn 2024-05-31 #11

`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=2030757610

Subdomains

webdisk.ktbv.vn

cpcontacts.ktbv.vn

cpcalendars.ktbv.vn

webmail.ktbv.vn

autodiscover.ktbv.vn

cpanel.ktbv.vn

www.ktbv.vn

Same first word

ktbv.vn

ktbv.com

ktbv.de

Similar names

vtbk.de

tkbv.com

kbtv.org

vbkt.com

vtkb.net

bktv.nu

kbtv.at

btvk.com

vbtk.de

bvtk.ru

kbvt.shop

tkvb.de

tkvb.cn

tkvb.com

ktvb.ru

kbtv.cn

bktv.cn

bktv.ru

kbvt.cn

vktb.com

bvkt.kiev.ua

kbtv.com

btvk.ch

bvtk.com

bktv.at

vkbt.com.cn

bktv.org

tvkb.org

vtkb.com

bktv.se

vtbk.ru

vbtk.co

ktvb.tv

kvtb.de

tkbv.de

ktvb.mobi

vkbt.com

bkvt.by

btkv.at

vkbt.ru

ktvb.ch

vbkt.nl

kbtv.cc

ktvb.org

vtbk.com

kbtv.tv

bktv.de

bktv.no

vtkb.ru

ktvb.biz

kbtv.io

vktb.ru

kvtb.com

ktvb.us

kvtb.ru

vbtk.no

tbkv.de

ktvb.net

tvbk.net

btkv.de

ktvb.com.cn

ktvb.de

tbkv.com

bktv.online

bktv.com

btkv.com

tkbv.vn

bkvt.com

bvtk.de

bktv.si

btkv.cn

kbtv.de

btvk.nl

vtkb.de

tvbk.com

tvkb.com

bktv.live

bvkt.com

tkbv.cn

ktvb.pw

bktv.hu

btvk.ru

bktv.ch

ktvb.info

vbtk.ru

kvbt.de

vbtk.com

btvk.cn

tbvk.com

kbvt.ru

tkvb.cz

ktvb.com

kbtv.ru

bktv.net

bktv.us

bktv.nl

DNS History

10 records (10 active, 0 former)

●NSns1.pavietnam.vn2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●NSns2.pavietnam.vn2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●NSns3.dotvndns.vn2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●NSnsbak.pavietnam.net2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●MXalt1.aspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●MXalt2.aspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●MXalt3.aspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●MXalt4.aspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●MXaspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

●A103.57.221.272026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 15:57:46
● 2026-05-11 04:48:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
ktbv.vn	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn, ns3.dotvndns.vn	4 records

✅ Authoritative Response

Server:112.213.89.22

NS records: nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn, ns3.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ktbv.vn (unsigned zone)

⏱️ Timing

Total: 2675ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.57.221.27`
NS	4	`ns2.pavietnam.vn, ns3.dotvndns.vn...`
MX	5	`alt4.aspmx.l.google.com (pri: 10), alt2.aspmx.l.google.com (pri: 5)...`
TXT	2	`google-site-verification=bI6pWB99Vt6LU4y, v=spf1 include:_spf.google.com ~all`
SOA	1	`ns1.pavietnam.vn hostmaster.ktbv.vn`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.pavietnam.vn, ns1.pavietnam.vn, ns2.pavietnam.vn...)

Analysis

Hierarchy

ktbv.vn is a parent of webdisk.ktbv.vn, cpcontacts.ktbv.vn, cpcalendars.ktbv.vn, webmail.ktbv.vn, autodiscover.ktbv.vn and a few other host names.