`khangthinhco.com`

DNSSEC	⚠️ Not signed
A	103.77.162.18^{🇻🇳 SUPERDATA103.77.162.0/24 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	`dateh.maychu.cloud`
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`
NS	`ns1.pavietnam.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.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`
MX	`mail.khangthinhco.com` ⭐
		A	103.77.162.18^{🇻🇳 SUPERDATA103.77.162.0/24 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	`dateh.maychu.cloud`
TXT	`v=spf1 a mx ~all`
TXT	`google-site-verification=mOV8pNqncR-9nwcZw-XlaYlZ-Isnb6MitHdPzLg5HZE`
SOA	`nsbak.pavietnam.net`hostmaster@khangthinhco.com 2025-11-26 #4

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774482357

Subdomains

mail.khangthinhco.com

www.khangthinhco.com

Same first word

khangthinhco.com

DNS History

11 records (5 active, 6 former)

○NSns.viettelidc.com.vn2015-12-02 → 2016-07-14 · 4 obs

● 2015-12-02 09:40:28
● 2016-07-14 03:01:22
○ 2017-06-07 04:45:10
○ 2026-03-26 00:01:44

●NSns1.pavietnam.vn2017-06-07 → 2026-03-26 · 3 obs

○ 2016-07-14 03:01:22
● 2017-06-07 04:45:10
● 2026-03-26 00:01:44

○NSns1.viettelidc.com.vn2015-12-02 → 2016-07-14 · 4 obs

● 2015-12-02 09:40:28
● 2016-07-14 03:01:22
○ 2017-06-07 04:45:10
○ 2026-03-26 00:01:44

●NSns2.pavietnam.vn2017-06-07 → 2026-03-26 · 3 obs

○ 2016-07-14 03:01:22
● 2017-06-07 04:45:10
● 2026-03-26 00:01:44

○NSns2.viettelidc.com.vn2015-12-02 → 2016-07-14 · 4 obs

● 2015-12-02 09:40:28
● 2016-07-14 03:01:22
○ 2017-06-07 04:45:10
○ 2026-03-26 00:01:44

●NSnsbak.pavietnam.net2017-06-07 → 2026-03-26 · 3 obs

○ 2016-07-14 03:01:22
● 2017-06-07 04:45:10
● 2026-03-26 00:01:44

●MXmail.khangthinhco.com2026-03-15 → 2026-03-26 · 2 obs

● 2026-03-15 21:30:42
● 2026-03-26 00:01:44

○A103.7.41.1252017-06-07 → 2017-06-07 · 4 obs

○ 2016-07-14 03:01:22
● 2017-06-07 04:45:10
○ 2026-03-15 21:30:42
○ 2026-03-26 00:01:44

●A103.77.162.182026-03-15 → 2026-03-26 · 3 obs

○ 2017-06-07 04:45:10
● 2026-03-15 21:30:42
● 2026-03-26 00:01:44

○A115.84.181.372015-12-02 → 2016-02-28 · 4 obs

● 2015-12-02 09:40:28
● 2016-02-28 20:13:26
○ 2016-07-14 03:01:22
○ 2026-03-26 00:01:44

○A210.211.113.1362016-07-14 → 2016-07-14 · 4 obs

○ 2016-02-28 20:13:26
● 2016-07-14 03:01:22
○ 2017-06-07 04:45:10
○ 2026-03-26 00:01:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
khangthinhco.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.22

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for khangthinhco.com (unsigned zone)

⏱️ Timing

Total: 4528ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.77.162.18`
NS	3	`ns2.pavietnam.vn, nsbak.pavietnam.net...`
MX	1	`mail.khangthinhco.com (pri: 10)`
TXT	2	`google-site-verification=mOV8pNqncR-9nwc, v=spf1 a mx ~all`
SOA	1	`nsbak.pavietnam.net hostmaster.khangthin`

Analysis

Hierarchy

khangthinhco.com is the parent of mail.khangthinhco.com and www.khangthinhco.com.

IP Addresses

khangthinhco.com resolves to a single IP: 103.77.162.18.

Other host names, for instance mail.gire.vn, bianclinic.com, a17-112-152-32.eraland.com.vn, bientanhitachi.com and luatviettin.com share IP numbers with khangthinhco.com.

Name Servers

khangthinhco.com delegates to three name servers: nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

khangthinhco.com shares some name servers with other domains, for example dulichquoctevieta.com, popeyes.vn, setfil.vn, boiler.com.vn and itehcmc.travel.

These name servers are often used together with nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.

Host names with two IP numbers:

nsbak.pavietnam.net: 2406:9c80::9000:302 and 112.213.89.22

ns1.pavietnam.vn: 2406:9c80::66 and 112.213.89.3

ns2.pavietnam.vn: 2406:9c80::9000:111 and 222.255.121.247

Mail Servers

khangthinhco.com is handled by a single mail server, mail.khangthinhco.com.

Host name mail.khangthinhco.com points to IP 103.77.162.18.

khangthinhco.com - robtex.com