`mauthanhthuy.com`

DNSSEC	⚠️ Not signed
A	103.77.162.3^{🇻🇳 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	`daegu.maychu.cloud`
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`
MX	`mail.mauthanhthuy.com` ⭐
		A	103.77.162.3^{🇻🇳 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	`daegu.maychu.cloud`
TXT	`v=spf1 a mx ~all`
SOA	`nsbak.dotvndns.com`hostmaster@mauthanhthuy.com 2026-02-24 #10

`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=1778474561

Subdomains

mail.mauthanhthuy.com

Same first word

mauthanhthuy.com

DNS History

10 records (5 active, 5 former)

○NSdnstemp1.dotvndns.com2026-02-16 → 2026-02-21 · 5 obs

○ 2017-03-14 04:49:04
● 2026-02-16 01:23:08
● 2026-02-21 22:32:30
○ 2026-03-04 13:57:26
○ 2026-05-11 05:02:22

○NSdnstemp2.dotvndns.com2026-02-16 → 2026-02-21 · 5 obs

○ 2017-03-14 04:49:04
● 2026-02-16 01:23:08
● 2026-02-21 22:32:30
○ 2026-03-04 13:57:26
○ 2026-05-11 05:02:22

●NSns1.dotvndns.vn2015-07-25 → 2026-05-11 · 6 obs

● 2015-07-25 06:39:44
● 2017-03-14 04:49:04
○ 2026-02-16 01:23:08
○ 2026-02-21 22:32:30
● 2026-03-04 13:57:26
● 2026-05-11 05:02:22

●NSns2.dotvndns.vn2015-07-25 → 2026-05-11 · 6 obs

● 2015-07-25 06:39:44
● 2017-03-14 04:49:04
○ 2026-02-16 01:23:08
○ 2026-02-21 22:32:30
● 2026-03-04 13:57:26
● 2026-05-11 05:02:22

●NSnsbak.dotvndns.com2026-03-04 → 2026-05-11 · 3 obs

○ 2026-02-21 22:32:30
● 2026-03-04 13:57:26
● 2026-05-11 05:02:22

●MXmail.mauthanhthuy.com2015-07-25 → 2026-05-11 · 5 obs

● 2015-07-25 06:39:44
● 2026-02-16 01:23:08
○ 2026-02-21 22:32:30
● 2026-03-04 13:57:26
● 2026-05-11 05:02:22

●A103.77.162.32026-03-04 → 2026-05-11 · 3 obs

○ 2026-02-21 22:32:30
● 2026-03-04 13:57:26
● 2026-05-11 05:02:22

○A112.213.89.32015-07-25 → 2015-07-25 · 3 obs

● 2015-07-25 06:39:44
○ 2015-11-20 21:35:34
○ 2026-05-11 05:02:22

○A112.213.91.612026-02-16 → 2026-02-21 · 5 obs

○ 2017-03-14 04:49:04
● 2026-02-16 01:23:08
● 2026-02-21 22:32:30
○ 2026-03-04 13:57:26
○ 2026-05-11 05:02:22

○A222.255.132.1232015-11-20 → 2017-03-14 · 5 obs

○ 2015-07-25 06:39:44
● 2015-11-20 21:35:34
● 2017-03-14 04:49:04
○ 2026-02-16 01:23:08
○ 2026-05-11 05:02:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, h.gtld-servers.net...	-
mauthanhthuy.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:222.255.121.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mauthanhthuy.com (unsigned zone)

⏱️ Timing

Total: 1815ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.77.162.3`
NS	3	`ns2.dotvndns.vn, ns1.dotvndns.vn...`
MX	1	`mail.mauthanhthuy.com (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`nsbak.dotvndns.com hostmaster.mauthanhth`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

Hierarchy

mauthanhthuy.com is a parent of mail.mauthanhthuy.com.

IP Addresses

mauthanhthuy.com points to a single IP address: 103.77.162.3.

Other host names such as ns.hanisa.org, cpcalendars.duhocidc.edu.vn, spring.duhocidc.edu.vn, conducmevonhiem.org and ns2.tamatra.com share IP numbers with mauthanhthuy.com.

Name Servers

mauthanhthuy.com is delegated to three name servers: nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.

At least part of the name servers for mauthanhthuy.com are shared with other domains, for instance phanmemcobanquyen.com, sofanhapkhau.vn, weeb.vn, luminous.com.vn and kimthanhcosmetic.com.vn.

These name servers are commonly used with ns1.pavietnam.vn, ns3.dotvndns.vn, nsbak.pavietnam.net and ns2.pavietnam.vn.

Host names with two IP numbers:

nsbak.dotvndns.com points to 2406:9c80::9000:302 and 112.213.89.22

ns1.dotvndns.vn points to 2406:9c80::66 and 112.213.89.3

ns2.dotvndns.vn points to 2406:9c80::9000:111 and 222.255.121.247

Mail Servers

The mail server for mauthanhthuy.com is mail.mauthanhthuy.com.

Host mail.mauthanhthuy.com points to IP 103.77.162.3.

mauthanhthuy.com - robtex.com