`khangcat.vn`

DNSSEC	⚠️ Not signed
A	103.57.221.26^{🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN}
NS	`nsbak.dotvndns.com` ⭐
		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`
NS	`ns1.dotvndns.vn`
		A	2406:9c80::66^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns1.dotvndns.vn`
		A	112.213.89.3^{🇻🇳 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	`ns1.dotvndns.vn`
NS	`ns2.dotvndns.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`
MX	`mail.khangcat.vn` ⭐
		A	103.57.221.26^{🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN}
TXT	`v=spf1 a mx ~all`
SOA	`nsbak.dotvndns.com`hostmaster@khangcat.vn 2024-12-07 #6

`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=2030756946

Subdomains

webmail.khangcat.vn

cpanel.khangcat.vn

webdisk.khangcat.vn

mail.khangcat.vn

www.khangcat.vn

autodiscover.khangcat.vn

cpcalendars.khangcat.vn

cpcontacts.khangcat.vn

Same first word

khangcat.vn

DNS History

6 records (6 active, 0 former)

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

● 2026-05-01 06:44:32
● 2026-05-11 03:29:36

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

● 2026-05-01 06:44:32
● 2026-05-11 03:29:36

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

● 2026-05-01 06:44:32
● 2026-05-11 03:29:36

●NSnsbak.dotvndns.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:44:32
● 2026-05-11 03:29:36

●MXmail.khangcat.vn2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:44:32
● 2026-05-11 03:29:36

●A103.57.221.262026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:44:32
● 2026-05-11 03:29:36

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:222.255.121.247

NS records: ns3.dotvndns.vn, nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for khangcat.vn (unsigned zone)

⏱️ Timing

Total: 2231ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.57.221.26`
NS	4	`ns2.dotvndns.vn, nsbak.dotvndns.com...`
MX	1	`mail.khangcat.vn (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`nsbak.dotvndns.com hostmaster.khangcat.v`

📌 Glue Records Collected

Total: 4

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

Analysis

Hierarchy

khangcat.vn is a parent of webmail.khangcat.vn, cpanel.khangcat.vn, webdisk.khangcat.vn, mail.khangcat.vn, www.khangcat.vn and several other host names.